CN106498292B - One kind is containing manganese automotive sheet in V, Ti and Nb and preparation method thereof - Google Patents
One kind is containing manganese automotive sheet in V, Ti and Nb and preparation method thereof Download PDFInfo
- Publication number
- CN106498292B CN106498292B CN201610927995.5A CN201610927995A CN106498292B CN 106498292 B CN106498292 B CN 106498292B CN 201610927995 A CN201610927995 A CN 201610927995A CN 106498292 B CN106498292 B CN 106498292B
- Authority
- CN
- China
- Prior art keywords
- rolling
- steel plate
- steel
- temperature
- warm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0231—Warm rolling
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
One kind is containing manganese automotive sheet in V, Ti and Nb and preparation method thereof.It is by weight percentage containing manganese automotive sheet, ingredient in V, Ti and Nb：C：0.1~0.3%, Si：0.3~3.5%, Mn：3.0~15.0%, Al：1.0~3.5%, V≤0.2%, Ti≤0.2%, Nb≤0.2%, surplus are Fe and impurity, steel plate 590~970MPa of yield strength, 980~1440MPa of tensile strength, breaking elongation 30~42%, strength and ductility product 40GPa% or more；Preparation method is, steel billet is made by composition proportion, after heating and thermal insulation, hot rolling obtains hot rolled steel plate, and will be after hot rolled steel plate water quenching to room temperature, it is heat-treated after being rolled, heating and thermal insulation is carried out again, carries out warm-rolling later, is heat-treated after warm-rolling steel plate is rolled, water quenching is obtained to room temperature containing manganese automotive sheet in V, Ti and Nb.The present invention ensure that warm-rolling steel plate has the plasticity that high intensity is become reconciled concurrently by the setting of heat treatment process parameter, to obtain outstanding strength and ductility product.
Description
Technical field：
The invention belongs to high-strength high-plasticity temperature technical field of steel rolling, and in particular to one kind is containing manganese automobile in V, Ti and Nb
Steel plate and preparation method thereof.
Background technology：
Currently, more stringent requirements are proposed to energy-saving and environmental protection for the progress and development of automobile industry.Both at home and abroad to automobile steel
Research carried out a large amount of R&D work.The tensile strength and breaking elongation of third generation automobile steel with High-strength high-plasticity
Product reach 30GP or more, such steel causes the very big emerging of researcher due to its higher strength and ductility product and its good ductility
Interest.In recent years, many scholars are more for 4~12% research to manganese mass fraction both at home and abroad, with the first generation and second generation automobile
Steel is compared, preferable comprehensive performance and lower alloy content and be identified as ideal third generation automobile steel.
The design of middle manganese automobile steel alloying component, which has, largely to be reported, mainly for C, Mn, Al and Si in these documents
Influence of the variation of constituent content to its microstructure and mechanical property.And use of Nb, V, Ti microalloy element in steel is few
It has been reported that.This experiment steel is that Nb, V, Ti element are added on the basis of common medium managese steel, forms it into carbon, nitrogen or carbon nitridation
Object is closed, so that microalloy element is passed through precipitation strength by controlled rolling to further increase the mechanical property of experiment steel.It is conventional
Hot-rolling method cannot meet the precipitation condition of microalloy element, and the method for utilizing high-temperature region controlled rolling and two-phase section warm-rolling,
It can make that precipitate is largely precipitated and pinning austenite grain boundary is to refine the crystal grain and tissue of steel；In addition, the temperature for passing through two-phase section
Rolling, not only obtains stable retained austenite and ultra-fine grained ferrite crystal grain, but also significantly reduce material in the operation of rolling
The resistance of deformation and roll-force of material avoid in cold-rolled process the problem of Cracking caused by resistance of deformation is excessive.
China is vanadium and titanium resources big country, in conjunction with China's vanadium and titanium resources, expands vanadium titanium use scope, exploitation has higher intensity
There is development prospect well with the third generation automobile steel of toughness.It is proposed in view of the above problems, the present invention are intended that with being suitble to contain
V, the milling method of Ti and Nb elements medium managese steel, by high temperature controlled rolling and controlled cooling and two-phase section rolling make V, Ti and Nb be fully precipitated from
And the comprehensive mechanical property of steel is further increased, provide reference for exploitation multi items automobile steel.
Invention content：
In view of the problems of the existing technology, the present invention provides a kind of containing manganese automotive sheet and its preparation in V, Ti and Nb
Method makes microalloy element be precipitated to crystal grain thinning by high-temperature control rolling, meanwhile, the warm-rolling plate provided is heat-treated after rolling
Manganese automobile steel has preferable tensile strength and elongation percentage in the relatively other cold rollings of technique, avoids and is rolled caused by excessive high hardness
System is difficult and is easy the problem of cracking, ensure that warm-rolling steel plate has the plasticity that high intensity is become reconciled concurrently by the heat treatment process,
To obtain outstanding strength and ductility product.
The present invention's contains manganese automotive sheet in V, Ti and Nb, and ingredient is respectively by weight percentage：C：0.1~
0.3%, Si：0.3~3.5%, Mn：3.0~15.0%, Al：1.0~3.5%, V≤0.2%, Ti≤0.2%, Nb≤
0.2%, surplus is Fe and impurity, and steel plate yield strength is 590~970MPa, and tensile strength is 980~1440MPa, overall elongation
Rate is 30~42%, and strength and ductility product reaches 40GPa% or more.
The above-mentioned preparation method containing manganese automotive sheet in V, Ti and Nb, includes the following steps：
Step 1：It is prepared by steel billet：
By the composition proportion containing manganese automotive sheet in V, Ti and Nb, steel billet is made after being smelted into molten steel；
Step 2：Hot rolling：
(1) preceding heat treatment is rolled：By heating steel billet to 1200~1350 DEG C, 2~5h is kept the temperature；
(2) hot rolling：Steel billet is subjected to hot rolling, hot rolled steel plate is made, wherein breaking down temperature is 1100~1200 DEG C, finish to gauge
Temperature is 900~1100 DEG C, and hot rolled steel plate thickness is 3~4mm；
(3) water quenching：Steel plate after hot rolling water quenching is made to room temperature in water quenching immediately after rolling；
Step 3：It is heat-treated after rolling：
(1) it heats：Steel plate after hot rolling water quenching is heated to 600~750 DEG C, keeps the temperature l~1.5h, water quenching to room temperature；
(2) it is tempered：Steel plate after water quenching is tempered, 200~450 DEG C of temperature, tempering insulation time 10~
20min；
(3) air-cooled：Steel plate after being tempered, is air-cooled to room temperature；
Step 4：Warm-rolling：
(1) preceding heat treatment is rolled：Steel plate after will be air-cooled is heated to 550~750 DEG C, keeps the temperature 2~10min；
(2) warm-rolling：After heat-treated steel plate is carried out warm-rolling, it is air-cooled to room temperature, warm-rolling steel plate is made；Wherein, warm-rolling is first
It is 650~750 DEG C to roll temperature, and finishing temperature is 550~650 DEG C, and warm-rolling steel plate thickness is l~1.5mm；
Step 5：It is heat-treated after rolling：
After warm-rolling steel plate is heated to 650~750 DEG C, after keeping the temperature 3~10min；Water quenching is made to room temperature and contains V, Ti and Nb
Middle manganese automotive sheet；
In the step 1, the operation of melting molten steel carries out in converter, electric furnace or induction furnace.
In the step 1, steel billet is prepared by one kind in following two modes：
(1) after steel ingot being made in pouring molten steel, by Heating Steel Ingots to 1200~1350 DEG C, 2~5h is kept the temperature, forges and steel is made
Base；
(2) steel billet is made in molten steel continuous casting.
In the step 2 (1), heating operation carries out in heating furnace；
In the step 3 (1), heating operation carries out in heating furnace；
In the step 4 (1), heating operation carries out in heating furnace；
In the step 5, heating operation carries out in heating furnace；
Beneficial effects of the present invention：
(1) middle manganese automobile steel provided by the invention, ensure that the generation of a large amount of austenites；V, Ti and Nb microalloy elements
Addition, so that the intensity of material is further improved.
(2) present invention uses rolled steel plate the technique of warm-rolling, and the deformation for not only reducing material in the operation of rolling is anti-
Power and roll-force, and steel plate can be made to obtain largely stable austenite, the hardness solved in cold-rolled process because of steel is high, rolls
Power processed it is excessive and caused by problem of Cracking, it is easy to accomplish industrialized production.Compared with cold-rolled steel, warm-rolling steel has preferably comprehensive
Mechanical property.
After testing, the yield strength containing manganese automotive sheet in V, Ti and Nb made from this method is 590~970MPa, is resisted
Tensile strength is 980~1440MPa, and breaking elongation is 30~42%, and strength and ductility product reaches 40GPa% or more.
Description of the drawings：
Fig. 1 is that the thermal expansion containing manganese automotive sheet in V, Ti and Nb prepared by the embodiment of the present invention 1 and embodiment 8 is bent
Line；Wherein
(a) thermal dilatometry containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 1；
(b) thermal dilatometry containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 8；
Fig. 2 be the embodiment of the present invention 1 and embodiment 8 prepare containing each phase Phase Proportion in manganese automotive sheet in V, Ti and Nb
Calculating simulation phasor；Wherein：
(a) be embodiment 1 prepare containing each phase Phase Proportion calculating simulation phasor in manganese automotive sheet in V, Ti and Nb；
(b) be embodiment 8 prepare containing each phase Phase Proportion calculating simulation phasor in manganese automotive sheet in V, Ti and Nb；
Fig. 3 is the SEM image of steel plate after hot rolling water quenching in the embodiment of the present invention 1,2,3 and 8；Wherein：
(a) it is the SEM image of steel plate after hot rolling water quenching in embodiment 1；
(b) it is the SEM image of steel plate after hot rolling water quenching in embodiment 2；
(c) it is the SEM image of steel plate after hot rolling water quenching in embodiment 3；
(d) it is the SEM image of steel plate after hot rolling water quenching in embodiment 8；
Fig. 4 is the SEM image of the embodiment of the present invention 1,2,3 and 8 warm-rolling steel plates；Wherein：
(a) it is the SEM image of 1 medium temperature rolled steel plate of embodiment；
(b) it is the SEM image of 2 medium temperature rolled steel plate of embodiment；
(c) it is the SEM image of 3 medium temperature rolled steel plate of embodiment；
(d) it is the SEM image of 8 medium temperature rolled steel plate of embodiment；
Fig. 5 is the stress-strain diagram containing manganese automotive sheet in V, Ti and Nb prepared by the embodiment of the present invention 1,2,3 and 8
Image；Wherein：
(a) the stress-strain curve diagram picture containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 1；
(b) the stress-strain curve diagram picture containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 2；
(c) the stress-strain curve diagram picture containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 3；
(d) the stress-strain curve diagram picture containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 8；
Fig. 6 is the preparation of the embodiment of the present invention 1,2,3 and 8 containing manganese automotive sheet work hardening rate curve in V, Ti and Nb
Image；Wherein：
(a) the work hardening rate curve image containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 1；
(b) the work hardening rate curve image containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 2；
(c) the work hardening rate curve image containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 3；
(d) the work hardening rate curve image containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 8；
Fig. 7 is the TEM shape appearance figures containing manganese automotive sheet in V, Ti and Nb prepared by the embodiment of the present invention 1,2 and 8；Its
In：
(a) bright field image containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 1；
(b) dark field image containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 1；
(c) bright field image containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 2,
(d) dark field image containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 2；
(e) bright field image containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 8,
(f) dark field image containing manganese automotive sheet in V, Ti and Nb prepared for embodiment 8；
Fig. 8 is the preparation of the embodiment of the present invention 1,2,3 and 8 containing manganese automotive sheet V, Ti precipitate in V, Ti and Nb
SEM feature images；Wherein：
(a) the SEM feature images containing V, Ti precipitate of manganese automotive sheet in V, Ti and Nb prepared for embodiment 1；
(b) the SEM feature images containing V, Ti precipitate of manganese automotive sheet in V, Ti and Nb prepared for embodiment 2；
(c) the SEM feature images containing V, Ti precipitate of manganese automotive sheet in V, Ti and Nb prepared for embodiment 3；
(d) the SEM feature images containing V, Ti precipitate of manganese automotive sheet in V, Ti and Nb prepared for embodiment 8；
Wherein, the black portions that dotted line is irised out are V, Ti precipitate；
(e) V, Ti precipitate energy spectrum diagram containing manganese automotive sheet in V, Ti and Nb prepared by embodiment 8；
Fig. 9 is the preparation of the embodiment of the present invention 1,2,3 and 8 containing manganese automotive sheet residual austenite content in V, Ti and Nb
XRD diagram picture；Wherein：
(a) contain manganese automotive sheet residual austenite content XRD diagram picture in V, Ti and Nb for prepared by embodiment 1；
(b) contain manganese automotive sheet residual austenite content XRD diagram picture in V, Ti and Nb for prepared by embodiment 2；
(c) contain manganese automotive sheet residual austenite content XRD diagram picture in V, Ti and Nb for prepared by embodiment 3；
(d) contain manganese automotive sheet residual austenite content XRD diagram picture in V, Ti and Nb for prepared by embodiment 8；
Figure 10 is the preparation of the embodiment of the present invention 2 containing manganese automotive sheet V, Ti precipitate EPMA patterns in V, Ti and Nb
Figure；Wherein：
(a) what prepared by embodiment 2 schemes containing V, Ti and Nb Zhong Meng automotive sheets displaing micro tissue topography；
(b) what prepared by embodiment 2 is precipitated distribution map containing manganese automotive sheet Ti in V, Ti and Nb；
(c) what prepared by embodiment 2 is precipitated distribution map containing manganese automotive sheet V in V, Ti and Nb；
Figure 11 contains manganese automotive sheet C, Mn partition EPMA shape appearance figures in V, Ti and Nb for prepared by the embodiment of the present invention 3,
Wherein：
(a) what prepared by embodiment 3 schemes containing V, Ti and Nb Zhong Meng automotive sheets displaing micro tissue topography；
(b) what prepared by embodiment 3 contains manganese automotive sheet Mn concentration profiles in V, Ti and Nb；
(c) what prepared by embodiment 3 contains manganese automotive sheet C concentration profiles in V, Ti and Nb；
Figure 12 is the preparation of the embodiment of the present invention 2 and 4 containing manganese automotive sheet impact fracture pattern in V, Ti and Nb；Its
In：
(a) what prepared by embodiment 2 contains manganese automotive sheet impact fracture pattern in V, Ti and Nb；
(b) what prepared by embodiment 4 contains manganese automotive sheet impact fracture pattern in V, Ti and Nb.
Specific implementation mode：
With reference to embodiment, the present invention is described in further detail.
The composition proportion of this patent combination third generation automobile slab, using detections such as light microscope, scanning electron microscope and XRD
The tissue and mechanical property of warm-rolling medium managese steel after different temperatures heat treatment after technical research addition V, Ti and Nb element.
Particular embodiments described above has carried out further technical scheme of the present invention, embodiment and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not limited to this hair
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection domain within；
Mechanics Performance Testing is carried out containing manganese automotive sheet in V, Ti and Nb to obtained, operating process is as follows：
Step 1：It will be obtained containing in V, Ti and Nb according to GB/T228-2002 " metal material tensile testing at ambient temperature "
Manganese automotive sheet is processed into tensile sample, sets tensile speed 3mm/min, and electronic extensometer is first fixed before stretching, and stretches
Process is automatically controlled by computer program；
Step 2：Sample is cut along rolling direction, is ground with the silicon carbide water-proof abrasive paper of 120~1200#, is placed in woollen
It polishes on polishing cloth, is then dried up with water and alcohol rinse and using hair-dryer, carried out with 20~25% solution of sodium bisulfite
Etching pit；
Step 3：With the tissue of field emission microscopy observation hot-rolled steel and warm-rolling steel rolling；With transmission electron microscope observing precipitate
Morphology and size；
Embodiment 1
The present embodiment contains manganese automotive sheet in V, Ti and Nb, and ingredient is respectively by weight percentage：C：0.1%,
Si：0.3%, Mn：3.0%, Al：1.0%, V：0.01%, Ti：0.05%, Nb：0.2%, surplus is Fe and impurity, and steel plate is bent
It is 590MPa to take intensity, and tensile strength 980MPa, breaking elongation 42%, strength and ductility product reaches 41.16GPa%.
The above-mentioned preparation method containing manganese automotive sheet in V, Ti and Nb, includes the following steps：
Step 1：It is prepared by steel billet：
By the composition proportion containing manganese automotive sheet in V, Ti and Nb, molten steel is smelted into converter, by pouring molten steel system
After steel ingot, by Heating Steel Ingots to 1200 DEG C, 5h is kept the temperature, forges and steel billet is made, steel billet sectional area is 100 × 10mm；
Step 2：Hot rolling：
(1) preceding heat treatment is rolled：By steel billet in heating furnace, 1200 DEG C are heated to, keeps the temperature 3h；
(2) hot rolling：Steel billet is subjected to hot rolling, hot rolled steel plate is made, hot rolled steel plate thickness is 3mm；Wherein, breaking down temperature is
1100 DEG C, finishing temperature is 900 DEG C, and hot rolling reduction ratio is 70%；
(3) water quenching：Steel plate after hot rolling water quenching is made to room temperature in water quenching immediately after rolling；
Shown in the SEM image of steel plate after hot rolling water quenching such as Fig. 3 (a)；
Step 3：It is heat-treated after rolling：
(1) it heats：By the steel plate after hot rolling water quenching in heating furnace, 600 DEG C are heated to, keeps the temperature lh, water quenching to room temperature；
(2) it is tempered：Steel plate after water quenching is tempered, 200 DEG C of temperature, tempering insulation time 10min；
(3) air-cooled：Steel plate after being tempered, is air-cooled to room temperature；
Step 4：Warm-rolling：
(1) preceding heat treatment is rolled：Steel plate after will be air-cooled is heated to 550 DEG C in heating furnace, keeps the temperature 2min；
(2) warm-rolling：Heat-treated steel plate is subjected to warm-rolling, is air-cooled to room temperature, warm-rolling steel plate is made, warm-rolling steel plate thickness is
lmm；Wherein, the breaking down temperature of warm-rolling is 650 DEG C, and finishing temperature is 550 DEG C, and warm-rolling reduction ratio is 60%；
Shown in the SEM image of warm-rolling steel plate such as Fig. 4 (a)；
Step 5：It is heat-treated after rolling：
(1) by warm-rolling steel plate in heating furnace, after being heated to 650 DEG C, 3min is kept the temperature,
(2) water quenching is made to room temperature containing manganese automotive sheet in V, Ti and Nb.
Correlated performance test, thermal dilatometry are carried out to containing manganese automotive sheet in V, Ti and Nb made from the present embodiment
As shown in Fig. 1 (a)；Shown in each phase Phase Proportion calculating simulation phasor such as Fig. 2 (a)；Shown in stress-strain diagram such as Fig. 5 (a)；Processing
Shown in hardening ratio curve such as Fig. 6 (a)；Shown in bright field image such as Fig. 7 (a) in TEM shape appearance figures；Dark field image in TEM shape appearance figures is such as
Shown in Fig. 7 (b)；V, shown in SEM shape appearance figures such as Fig. 8 (a) of Ti precipitates；Shown in residual austenite content XRD diagram such as Fig. 9 (a).
Embodiment 2
The present embodiment contains manganese automotive sheet in V, Ti and Nb, and ingredient is respectively by weight percentage：C：0.15%,
Si：0.3%, Mn：5.0%, Al：1.3%, V：0.04%, Ti：0.03%, Nb：0.12%, surplus is Fe and impurity, and steel plate is bent
It is 630MPa to take intensity, and tensile strength 1040MPa, breaking elongation 38%, strength and ductility product reaches 39.52GPa%.
The above-mentioned preparation method containing manganese automotive sheet in V, Ti and Nb, includes the following steps：
Step 1：It is prepared by steel billet：
By the composition proportion containing manganese automotive sheet in V, Ti and Nb, molten steel is smelted into converter, by pouring molten steel system
After steel ingot, ingot casting is heated to 1220 DEG C, keeps the temperature 4h, forged and steel billet is made, steel billet sectional area is 100 × 12mm；
Step 2：Hot rolling：
(2) preceding heat treatment is rolled：By steel billet in heating furnace, 1240 DEG C are heated to, keeps the temperature 5h；
(2) hot rolling：Steel billet is subjected to hot rolling, hot rolled steel plate is made, hot rolled steel plate thickness is 3mm；Wherein, breaking down temperature is
1120 DEG C, finishing temperature is 920 DEG C, and hot rolling reduction ratio is 74%；
(3) water quenching：Steel plate after hot rolling water quenching is made to room temperature in water quenching immediately after rolling；
Shown in the SEM image of steel plate after hot rolling water quenching such as Fig. 3 (b)；
Step 3：It is heat-treated after rolling：
(1) it heats：By the steel plate after hot rolling water quenching in heating furnace, 620 DEG C are heated to, keeps the temperature lh, water quenching to room temperature；
(2) it is tempered：Steel plate after water quenching is tempered, 240 DEG C of temperature, tempering insulation time 12min；
(3) air-cooled：Steel plate after being tempered, is air-cooled to room temperature；
Step 4：Warm-rolling：
(1) preceding heat treatment is rolled：Steel plate after will be air-cooled is heated to 580 DEG C in heating furnace, keeps the temperature 3min；
(2) warm-rolling：Heat-treated steel plate is subjected to warm-rolling, is air-cooled to room temperature, warm-rolling steel plate is made, warm-rolling steel plate thickness is
lmm；Wherein, the breaking down temperature of warm-rolling is 655 DEG C, and finishing temperature is 560 DEG C, and warm-rolling reduction ratio is 66.6%；
Shown in the SEM image of warm-rolling steel plate such as Fig. 4 (b)；
Step 5：It is heat-treated after rolling：
(1) by warm-rolling steel plate in heating furnace, after being heated to 660 DEG C, 5min is kept the temperature,
(2) water quenching is made to room temperature containing manganese automotive sheet in V, Ti and Nb.
Correlated performance test, stress-strain diagram are carried out to containing manganese automotive sheet in V, Ti and Nb made from the present embodiment
As shown in Fig. 5 (b)；Shown in work hardening rate curve such as Fig. 6 (b)；Shown in bright field image such as Fig. 7 (c) in TEM shape appearance figures；TEM shapes
Shown in dark field image such as Fig. 7 (d) in looks figure；V, shown in SEM shape appearance figures such as Fig. 8 (b) of Ti precipitates；Residual austenite content
Shown in XRD diagram such as Fig. 9 (b)；V, shown in Ti steel microscopic structures shape appearance figure such as Figure 10 (a)；Distribution map such as Figure 10 (b) institutes are precipitated in Ti
Show；V is precipitated shown in distribution map such as Figure 10 (c)；Shown in impact fracture pattern such as Figure 12 (a).
Embodiment 3
The present embodiment contains manganese automotive sheet in V, Ti and Nb, and ingredient is respectively by weight percentage：C：0.18%,
Si：1.0%, Mn：8.0%, Al：1.6%, V：0.03%, Ti：0.08%, Nb：0.15%, surplus is Fe and impurity, and steel plate is bent
It is 692MPa to take intensity, and tensile strength 1150MPa, breaking elongation 36%, strength and ductility product reaches 41.4GPa%.
The above-mentioned preparation method containing manganese automotive sheet in V, Ti and Nb, includes the following steps：
Step 1：It is prepared by steel billet：
By the composition proportion containing manganese automotive sheet in V, Ti and Nb, molten steel is smelted into electric furnace, by pouring molten steel at
Ingot casting is heated to 1280 DEG C, keeps the temperature 2h by steel ingot, forges and steel billet is made, and steel billet sectional area is 100 × 14mm；
Step 2：Hot rolling：
(3) preceding heat treatment is rolled：By steel billet in heating furnace, 1280 DEG C are heated to, keeps the temperature 5h；
(2) hot rolling：Steel billet is subjected to hot rolling, hot rolled steel plate is made, hot rolled steel plate thickness is 3.2mm；Wherein, breaking down temperature
It it is 1140 DEG C, finishing temperature is 940 DEG C, and hot rolling reduction ratio is 78%；
(3) water quenching：Steel plate after hot rolling water quenching is made to room temperature in water quenching immediately after rolling；
Shown in the SEM image of steel plate after hot rolling water quenching such as Fig. 3 (c)；
Step 3：It is heat-treated after rolling：
(1) it heats：By the steel plate after hot rolling water quenching in heating furnace, 630 DEG C are heated to, is kept the temperature l.1h, water quenching to room temperature；
(2) it is tempered：Steel plate after water quenching is tempered, 300 DEG C of temperature, tempering insulation time 13min；
(3) air-cooled：Steel plate after being tempered, is air-cooled to room temperature；
Step 4：Warm-rolling：
(1) preceding heat treatment is rolled：Steel plate after will be air-cooled is heated to 600 DEG C in heating furnace, keeps the temperature 4min；
(2) warm-rolling：Heat-treated steel plate is subjected to warm-rolling, is air-cooled to room temperature, warm-rolling steel plate is made, warm-rolling steel plate thickness is
l.1mm；Wherein, the breaking down temperature of warm-rolling is 670 DEG C, and finishing temperature is 580 DEG C, and warm-rolling reduction ratio is 68.7%；
Shown in the SEM image of warm-rolling steel plate such as Fig. 4 (c)；
Step 5：It is heat-treated after rolling：
(1) by warm-rolling steel plate in heating furnace, after being heated to 680 DEG C, 6min is kept the temperature,
(2) water quenching is made to room temperature containing manganese automotive sheet in V, Ti and Nb.
Correlated performance test, stress-strain diagram are carried out to containing manganese automotive sheet in V, Ti and Nb made from the present embodiment
As shown in Fig. 5 (c)；Shown in work hardening rate curve such as Fig. 6 (c)；V, shown in SEM shape appearance figures such as Fig. 8 (c) of Ti precipitates；It is residual
Shown in remaining austenite content XRD diagram such as Fig. 9 (c)；V, shown in Ti steel microscopic structures shape appearance figure such as Figure 11 (a)；Mn concentration profiles
As shown in Figure 11 (b)；Shown in C concentration profiles such as Figure 11 (c).
Embodiment 4
The present embodiment contains manganese automotive sheet in V, Ti and Nb, and ingredient is respectively by weight percentage：C：0.2%,
Si：1.0%, Mn：10.0%, Al：2.6%, V：0.05%, Ti：0.01%, Nb：0.1%, surplus is Fe and impurity, and steel plate is bent
It is 720MPa to take intensity, and tensile strength 1250MPa, breaking elongation 35%, strength and ductility product reaches 43.75GPa%.
The above-mentioned preparation method containing manganese automotive sheet in V, Ti and Nb, includes the following steps：
Step 1：It is prepared by steel billet：
By the composition proportion containing manganese automotive sheet in V, Ti and Nb, molten steel is smelted into electric furnace, by pouring molten steel at
Ingot casting is heated to 1250 DEG C, keeps the temperature 3h by steel ingot, forges and steel billet is made, and steel billet sectional area is 100 × 18mm；
Step 2：Hot rolling：
(4) preceding heat treatment is rolled：By steel billet in heating furnace, 1300 DEG C are heated to, keeps the temperature 2.5h；
(2) hot rolling：Steel billet is subjected to hot rolling, hot rolled steel plate is made, hot rolled steel plate thickness is 3.2mm；Wherein, breaking down temperature
It it is 1150 DEG C, finishing temperature is 950 DEG C, and hot rolling reduction ratio is 82%；
(3) water quenching：Steel plate after hot rolling water quenching is made to room temperature in water quenching immediately after rolling；
Step 3：It is heat-treated after rolling：
(1) it heats：By the steel plate after hot rolling water quenching in heating furnace, 650 DEG C are heated to, is kept the temperature l.2h, water quenching to room temperature；
(2) it is tempered：Steel plate after water quenching is tempered, 320 DEG C of temperature, tempering insulation time 15min；
(3) air-cooled：Steel plate after being tempered, is air-cooled to room temperature；
Step 4：Warm-rolling：
(1) preceding heat treatment is rolled：Steel plate after will be air-cooled is heated to 620 DEG C in heating furnace, keeps the temperature 5min；
(2) warm-rolling：Heat-treated steel plate is subjected to warm-rolling, is air-cooled to room temperature, warm-rolling steel plate is made, warm-rolling steel plate thickness is
l.2mm；Wherein, the breaking down temperature of warm-rolling is 680 DEG C, and finishing temperature is 600 DEG C, and warm-rolling reduction ratio is 70.5%；
Step 5：It is heat-treated after rolling：
(1) by warm-rolling steel plate in heating furnace, after being heated to 700 DEG C, 7min is kept the temperature,
(2) water quenching is made to room temperature containing manganese automotive sheet in V, Ti and Nb.
It is obtained shown containing manganese automotive sheet impact fracture pattern such as Figure 12 (b) in V, Ti and Nb.
Embodiment 5
The present embodiment contains manganese automotive sheet in V, Ti and Nb, and ingredient is respectively by weight percentage：C：0.24%,
Si：1.8%, Mn：11.0%, Al：2.4%, V：0.1%, Ti：0.15%, Nb：0.08%, surplus is Fe and impurity, and steel plate is bent
It is 793MPa to take intensity, and tensile strength 1300MPa, breaking elongation 34%, strength and ductility product reaches 44.2GPa%.
The above-mentioned preparation method containing manganese automotive sheet in V, Ti and Nb, includes the following steps：
Step 1：It is prepared by steel billet：
By the composition proportion containing manganese automotive sheet in V, Ti and Nb, molten steel is smelted into induction furnace, by pouring molten steel
After steel ingot is made, ingot casting is heated to 1300 DEG C, keeps the temperature 3.5h, forged and steel billet is made, steel billet sectional area is 100 × 20mm；
Step 2：Hot rolling：
(5) preceding heat treatment is rolled：By steel billet in heating furnace, 1260 DEG C are heated to, keeps the temperature 2h；
(2) hot rolling：Steel billet is subjected to hot rolling, hot rolled steel plate is made, hot rolled steel plate thickness is 3.5mm；Wherein, breaking down temperature
It it is 1160 DEG C, finishing temperature is 960 DEG C, and hot rolling reduction ratio is 86%；
(3) water quenching：Steel plate after hot rolling water quenching is made to room temperature in water quenching immediately after rolling；
Step 3：It is heat-treated after rolling：
(1) it heats：By the steel plate after hot rolling water quenching in heating furnace, 680 DEG C are heated to, is kept the temperature l.3h, water quenching to room temperature；
(2) it is tempered：Steel plate after water quenching is tempered, 350 DEG C of temperature, tempering insulation time 16min；
(3) air-cooled：Steel plate after being tempered, is air-cooled to room temperature；
Step 4：Warm-rolling：
(1) preceding heat treatment is rolled：Steel plate after will be air-cooled is heated to 650 DEG C in heating furnace, keeps the temperature 6min；
(2) warm-rolling：Heat-treated steel plate is subjected to warm-rolling, is air-cooled to room temperature, warm-rolling steel plate is made, warm-rolling steel plate thickness is
l.3mm；Wherein, the breaking down temperature of warm-rolling is 700 DEG C, and finishing temperature is 610 DEG C, and warm-rolling reduction ratio is 71.4%；
Step 5：It is heat-treated after rolling：
(1) by warm-rolling steel plate in heating furnace, after being heated to 710 DEG C, 8min is kept the temperature,
(2) water quenching is made to room temperature containing manganese automotive sheet in V, Ti and Nb.
Embodiment 6
The present embodiment contains manganese automotive sheet in V, Ti and Nb, and ingredient is respectively by weight percentage：C：0.26%,
Si：1.8%, Mn：12.0%, Al：4.2%, V：0.14%, Ti：0.18%, Nb：0.06%, surplus is Fe and impurity, steel plate
Yield strength is 810MPa, and tensile strength 1330MPa, breaking elongation 32%, strength and ductility product reaches 42.56GPa%.
The above-mentioned preparation method containing manganese automotive sheet in V, Ti and Nb, includes the following steps：
Step 1：It is prepared by steel billet：
By the composition proportion containing manganese automotive sheet in V, Ti and Nb, molten steel is smelted into induction furnace, by pouring molten steel
At steel ingot, ingot casting is heated to 1340 DEG C, keeps the temperature 2.5h, forged and steel billet is made, steel billet sectional area is 100 × 24mm；
Step 2：Hot rolling：
(6) preceding heat treatment is rolled：By steel billet in heating furnace, 1350 DEG C are heated to, keeps the temperature 3.5h；
(2) hot rolling：Steel billet is subjected to hot rolling, hot rolled steel plate is made, hot rolled steel plate thickness is 3.8mm；Wherein, breaking down temperature
It it is 1180 DEG C, finishing temperature is 980 DEG C, and hot rolling reduction ratio is 90%；
(3) water quenching：Steel plate after hot rolling water quenching is made to room temperature in water quenching immediately after rolling；
Step 3：It is heat-treated after rolling：
(1) it heats：By the steel plate after hot rolling water quenching in heating furnace, 700 DEG C are heated to, is kept the temperature l.4h, water quenching to room temperature；
(2) it is tempered：Steel plate after water quenching is tempered, 400 DEG C of temperature, tempering insulation time 18min；
(3) air-cooled：Steel plate after being tempered, is air-cooled to room temperature；
Step 4：Warm-rolling：
(1) preceding heat treatment is rolled：Steel plate after will be air-cooled is heated to 700 DEG C in heating furnace, keeps the temperature 7min；
(2) warm-rolling：Heat-treated steel plate is subjected to warm-rolling, is air-cooled to room temperature, warm-rolling steel plate is made, warm-rolling steel plate thickness is
l.4mm；Wherein, the breaking down temperature of warm-rolling is 720 DEG C, and finishing temperature is 620 DEG C, and warm-rolling reduction ratio is 73.6%；
Step 5：It is heat-treated after rolling：
(1) by warm-rolling steel plate in heating furnace, after being heated to 730 DEG C, 9min is kept the temperature,
(2) water quenching is made to room temperature containing manganese automotive sheet in V, Ti and Nb.
Embodiment 7
The present embodiment contains manganese automotive sheet in V, Ti and Nb, and ingredient is respectively by weight percentage：C：0.28%,
Si：3.5%, Mn：14.0%, Al：3.0%, V：0.16%, Ti：0.2%, Nb：0.02%, surplus is Fe and impurity, and steel plate is bent
It is 889MPa to take intensity, and tensile strength 1400MPa, breaking elongation 31%, strength and ductility product reaches 43.4GPa%.
The above-mentioned preparation method containing manganese automotive sheet in V, Ti and Nb, includes the following steps：
Step 1：It is prepared by steel billet：
By the composition proportion containing manganese automotive sheet in V, Ti and Nb, molten steel is smelted into induction furnace, by pouring molten steel
At steel ingot, ingot casting is heated to 1350 DEG C, keeps the temperature 2h, forged and steel billet is made, steel billet sectional area is 100 × 28mm；
Step 2：Hot rolling：
(7) preceding heat treatment is rolled：By steel billet in heating furnace, 1320 DEG C are heated to, keeps the temperature 4h；
(2) hot rolling：Steel billet is subjected to hot rolling, hot rolled steel plate is made, hot rolled steel plate thickness is 4mm；Wherein, breaking down temperature is
1200 DEG C, finishing temperature is 1050 DEG C, and hot rolling reduction ratio is 94%；
(3) water quenching：Steel plate after hot rolling water quenching is made to room temperature in water quenching immediately after rolling；
Step 3：It is heat-treated after rolling：
(1) it heats：By the steel plate after hot rolling water quenching in heating furnace, 720 DEG C are heated to, is kept the temperature l.4h, water quenching to room temperature；
(2) it is tempered：Steel plate after water quenching is tempered, 420 DEG C of temperature, tempering insulation time 20min；
(3) air-cooled：Steel plate after being tempered, is air-cooled to room temperature；
Step 4：Warm-rolling：
(1) preceding heat treatment is rolled：Steel plate after will be air-cooled is heated to 720 DEG C in heating furnace, keeps the temperature 8min；
(2) warm-rolling：Heat-treated steel plate is subjected to warm-rolling, is air-cooled to room temperature, warm-rolling steel plate is made, warm-rolling steel plate thickness is
l.5mm；Wherein, the breaking down temperature of warm-rolling is 740 DEG C, and finishing temperature is 640 DEG C, and warm-rolling reduction ratio is 75%；
Step 5：It is heat-treated after rolling：
(1) by warm-rolling steel plate in heating furnace, after being heated to 740 DEG C, 10min is kept the temperature,
(2) water quenching is made to room temperature containing manganese automotive sheet in V, Ti and Nb.
Embodiment 8
The present embodiment contains manganese automotive sheet in V, Ti and Nb, and ingredient is respectively by weight percentage：C：0.3%,
Si：3.5%, Mn：15.0%, Al：3.5%, V：0.2%, Ti：0.1%, Nb：0.01%, surplus is Fe and impurity, and steel plate is bent
It is 970MPa to take intensity, and tensile strength 1440MPa, breaking elongation 30%, strength and ductility product reaches 43.2GPa%.
The above-mentioned preparation method containing manganese automotive sheet in V, Ti and Nb, includes the following steps：
Step 1：It is prepared by steel billet：
By the composition proportion containing manganese automotive sheet in V, Ti and Nb, molten steel is smelted into induction furnace, by molten steel continuous casting
At steel billet, steel billet sectional area is 100 × 30mm；
Step 2：Hot rolling：
(8) preceding heat treatment is rolled：By steel billet in heating furnace, 1340 DEG C are heated to, keeps the temperature 2.5h；
(2) hot rolling：Steel billet is subjected to hot rolling, hot rolled steel plate is made, hot rolled steel plate thickness is 4mm；Wherein, breaking down temperature is
1200 DEG C, finishing temperature is 1100 DEG C, and hot rolling reduction ratio is 95%；
(3) water quenching：Steel plate after hot rolling water quenching is made to room temperature in water quenching immediately after rolling；
After hot rolling water quenching shown in the SEM image of steel plate such as Fig. 3 (d)；
Step 3：It is heat-treated after rolling：
(1) it heats：By the steel plate after hot rolling water quenching in heating furnace, 750 DEG C are heated to, is kept the temperature l.5h, water quenching to room temperature；
(2) it is tempered：Steel plate after water quenching is tempered, 450 DEG C of temperature, tempering insulation time 20min；
(3) air-cooled：Steel plate after being tempered, is air-cooled to room temperature；
Step 4：Warm-rolling：
(1) preceding heat treatment is rolled：Steel plate after will be air-cooled is heated to 750 DEG C in heating furnace, keeps the temperature 10min；
(2) warm-rolling：Heat-treated steel plate is subjected to warm-rolling, is air-cooled to room temperature, warm-rolling steel plate is made, warm-rolling steel plate thickness is
l.5mm；Wherein, the breaking down temperature of warm-rolling is 750 DEG C, and finishing temperature is 650 DEG C, and warm-rolling reduction ratio is 80%；
Shown in the SEM image of warm-rolling steel plate such as Fig. 4 (d)；
Step 5：It is heat-treated after rolling：
(1) by warm-rolling steel plate in heating furnace, after being heated to 750 DEG C, 10min is kept the temperature,
(2) water quenching is made to room temperature containing manganese automotive sheet in V, Ti and Nb.
Correlated performance test, thermal dilatometry are carried out to containing manganese automotive sheet in V, Ti and Nb made from the present embodiment
As shown in Fig. 1 (b)；Shown in each phase Phase Proportion calculating simulation phasor such as Fig. 2 (b)；
Shown in stress-strain diagram such as Fig. 5 (d)；Shown in work hardening rate curve such as Fig. 6 (d)；Light field in TEM shape appearance figures
As shown in Fig. 7 (e)；Shown in dark field image such as Fig. 7 (f) in TEM shape appearance figures；V, SEM shape appearance figures such as Fig. 8 (d) of Ti precipitates
It is shown；Wherein, the black portions that dotted line is irised out are V, Ti precipitate；V, shown in Ti precipitates energy spectrum diagram such as Fig. 8 (e)；It is remaining difficult to understand
Shown in family name's body content XRD diagram such as Fig. 9 (a).
Claims (7)
1. a kind of preparation method containing manganese automotive sheet in V, Ti and Nb, which is characterized in that include the following steps：
Step 1：It is prepared by steel billet：
By the composition proportion containing manganese automotive sheet in V, Ti and Nb, steel billet is made after being smelted into molten steel, wherein it is described containing V,
Manganese automotive sheet, ingredient are respectively by weight percentage in Ti and Nb：C：0.1 ~ 0.3%, Si：0.3 ~ 3.5%, Mn：3.0~
15.0%, Al：1.0 ~ 3.5%, V≤0.2%, Ti≤0.2%, Nb≤0.2%, surplus are Fe and impurity, described containing manganese in V, Ti and Nb
Automotive sheet yield strength is 590 ~ 970MPa, and tensile strength is 980 ~ 1440MPa, and breaking elongation is 30 ~ 42%, strength and ductility product
Reach 40GPa% or more；
Step 2：Hot rolling：
(1) preceding heat treatment is rolled：By heating steel billet to 1200 ~ 1350 DEG C, 2 ~ 5h is kept the temperature；
(2) hot rolling：Steel billet is subjected to hot rolling, hot rolled steel plate is made, wherein breaking down temperature is 1100 ~ 1200 DEG C, and finishing temperature is
900 ~ 1100 DEG C, hot rolled steel plate thickness is 3 ~ 4mm；
(3) water quenching：Steel plate after hot rolling water quenching is made to room temperature in water quenching immediately after rolling；
Step 3：It is heat-treated after rolling：
(1) it heats：Steel plate after hot rolling water quenching is heated to 600 ~ 750 DEG C, keeps the temperature l ~ 1.5h, water quenching to room temperature；
(2) it is tempered：Steel plate after water quenching is tempered, 200 ~ 450 DEG C of temperature, 10 ~ 20min of tempering insulation time；
(3) air-cooled：Steel plate after being tempered, is air-cooled to room temperature；
Step 4：Warm-rolling：
(1) preceding heat treatment is rolled：Steel plate after will be air-cooled is heated to 550 ~ 750 DEG C, keeps the temperature 2 ~ 10min；
(2) warm-rolling：After heat-treated steel plate is carried out warm-rolling, it is air-cooled to room temperature, warm-rolling steel plate is made；Wherein, the breaking down temperature of warm-rolling
Degree is 650 ~ 750 DEG C, and finishing temperature is 550 ~ 650 DEG C, and warm-rolling steel plate thickness is l ~ 1.5mm；
Step 5：It is heat-treated after rolling：
After warm-rolling steel plate is heated to 650 ~ 750 DEG C, after keeping the temperature 3 ~ 10min, water quenching to room temperature is made containing manganese vapour in V, Ti and Nb
Automobile steel sheet.
2. the preparation method according to claim 1 containing manganese automotive sheet in V, Ti and Nb, which is characterized in that described
In step 1, steel billet is prepared by one kind in following two modes：
(1) after steel ingot being made in pouring molten steel, by Heating Steel Ingots to 1200 ~ 1350 DEG C, 2 ~ 5h is kept the temperature, forges and steel billet is made；
(2) steel billet is made in molten steel continuous casting.
3. the preparation method according to claim 1 containing manganese automotive sheet in V, Ti and Nb, which is characterized in that described
In step 1, the operation of melting molten steel carries out in converter, electric furnace or induction furnace.
4. the preparation method according to claim 1 containing manganese automotive sheet in V, Ti and Nb, which is characterized in that described
In step 2 (1), heating operation carries out in heating furnace.
5. the preparation method according to claim 1 containing manganese automotive sheet in V, Ti and Nb, which is characterized in that described
In step 3 (1), heating operation carries out in heating furnace.
6. the preparation method according to claim 1 containing manganese automotive sheet in V, Ti and Nb, which is characterized in that described
In step 4 (1), heating operation carries out in heating furnace.
7. the preparation method according to claim 1 containing manganese automotive sheet in V, Ti and Nb, which is characterized in that described
In step 5, heating operation carries out in heating furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610927995.5A CN106498292B (en) | 2016-10-31 | 2016-10-31 | One kind is containing manganese automotive sheet in V, Ti and Nb and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610927995.5A CN106498292B (en) | 2016-10-31 | 2016-10-31 | One kind is containing manganese automotive sheet in V, Ti and Nb and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106498292A CN106498292A (en) | 2017-03-15 |
| CN106498292B true CN106498292B (en) | 2018-10-23 |
Family
ID=58319580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610927995.5A Active CN106498292B (en) | 2016-10-31 | 2016-10-31 | One kind is containing manganese automotive sheet in V, Ti and Nb and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106498292B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107419179B (en) * | 2017-08-09 | 2019-12-31 | 北京科技大学 | High-strength and high-toughness microalloyed Al-containing medium manganese hot rolled steel plate and preparation method thereof |
| US20210054476A1 (en) * | 2018-01-05 | 2021-02-25 | The University Of Hong Kong | Automotive steel and a method for the fabrication of the same |
| CN108866435B (en) * | 2018-07-03 | 2019-08-06 | 鞍钢股份有限公司 | A kind of automobile combined microalloying medium managese steel and its manufacturing method |
| CN109082590A (en) * | 2018-08-23 | 2018-12-25 | 东北大学 | A kind of high-strength plasticity hot rolling medium managese steel plate and its critical zone roll preparation method |
| CN110055465B (en) * | 2019-05-16 | 2020-10-02 | 北京科技大学 | Medium-manganese ultrahigh-strength steel and preparation method thereof |
| CN110423950B (en) * | 2019-09-06 | 2020-09-04 | 安徽工业大学 | Fe-Mn-Al-C series medium-manganese low-temperature steel and preparation method thereof |
| CN111621624B (en) * | 2020-05-11 | 2021-10-22 | 北京交通大学 | Process method for improving hydrogen-induced delayed fracture resistance of medium manganese steel |
| WO2022068201A1 (en) * | 2020-10-02 | 2022-04-07 | The University Of Hong Kong | Strong and ductile medium manganese steel and method of making |
| CN116752048A (en) * | 2023-06-12 | 2023-09-15 | 北京科技大学 | Ultrahigh-strength and high-toughness medium-manganese steel with strength-plastic product of more than 90GPa% and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593675A (en) * | 2015-02-06 | 2015-05-06 | 深圳市晶莱新材料科技有限公司 | Preparation method of metal material with TWIP (twinning induced plasticity) and TRIP (transformation of retained austenite induced plasticity) effects |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104379791B (en) * | 2013-11-27 | 2016-11-09 | 青岛玉兰祥商务服务有限公司 | A kind of containing manganese steel and production method thereof |
| US20160281196A1 (en) * | 2015-03-25 | 2016-09-29 | Nano And Advanced Materials Institute Limited | High Strength Dual-Phase TRIP Steel and Method for Making Same |
| CN105861933B (en) * | 2016-05-31 | 2017-10-17 | 东北大学 | The middle manganese TRIP steel plates and its warm-rolling preparation method of a kind of nanometer/ultra-fine |
-
2016
- 2016-10-31 CN CN201610927995.5A patent/CN106498292B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593675A (en) * | 2015-02-06 | 2015-05-06 | 深圳市晶莱新材料科技有限公司 | Preparation method of metal material with TWIP (twinning induced plasticity) and TRIP (transformation of retained austenite induced plasticity) effects |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106498292A (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106498292B (en) | One kind is containing manganese automotive sheet in V, Ti and Nb and preparation method thereof | |
| CN107858586B (en) | A kind of preparation method of the high strength and ductility without yield point elongation cold rolling medium managese steel plate | |
| CN104532126B (en) | A kind of super high strength hot rolled Q＆P steel of low yield strength ratio and its manufacture method | |
| CN102080192B (en) | Low-yield ratio, high-plasticity, ultrafine-grain and high-strength steel and manufacturing method thereof | |
| CN106086640B (en) | A kind of cold rolling medium managese steel and preparation method thereof of superhigh intensity plasticity product | |
| CN106868281B (en) | A kind of ultra-fine grained ferrite/low temperature bainite dual-phase steel and preparation method thereof | |
| CN106435131A (en) | Method for preparing nanocrystalline austenitic stainless steel plate through deep cooling rolling-rapid annealing | |
| CN105861933B (en) | The middle manganese TRIP steel plates and its warm-rolling preparation method of a kind of nanometer/ultra-fine | |
| CN106011681B (en) | A kind of method of raising 316LN austenite stainless steel mechanical properties | |
| CN102581008A (en) | Processing method for producing low-cost high-formability IF (interstitial-free) steel | |
| CN101906519A (en) | Manufacture method of low yield ratio surface layer ultra fine grain low-carbon steel thick plate | |
| CN104451386B (en) | A kind of low yield strength ratio oil reserve is 610Mpa high-strength steel sheet and manufacture method thereof for tank body | |
| CN109082590A (en) | A kind of high-strength plasticity hot rolling medium managese steel plate and its critical zone roll preparation method | |
| CN109554607A (en) | Cold rolling enamelled pressed steel and its manufacturing method with excellent scaling resistance and deep drawing quality | |
| CN107177783B (en) | A kind of Ultra-fine Grained martensite ferrite dual phase steel and its production technology with the distribution of bimodal ferrite crystal grain | |
| CN109355567A (en) | A kind of low cost Q390D steel plate and preparation method thereof | |
| CN109023130A (en) | Economical medium managese steel of cold rolling containing Nb of one kind and preparation method thereof | |
| CN108441759A (en) | A kind of 540MPa grades of hot rolling acid-cleaning steel plate and its manufacturing method | |
| CN109576449A (en) | A kind of production method resisted remanent magnetism and increase, save the 9Ni steel plate of production energy consumption | |
| CN106636931A (en) | Preparation method of delta-ferrite-containing TRIP (transformation induced plasticity) steel | |
| CN108998734A (en) | A kind of super high-strength plasticity cold rolling Mn-Al system TRIP steel plate and its short annealing preparation method | |
| CN110055465B (en) | Medium-manganese ultrahigh-strength steel and preparation method thereof | |
| CN106048409A (en) | Method for improving mechanical properties of 301LN austenitic stainless steel | |
| CN116536562B (en) | High-uniform-elongation 2.0 GPa-level multi-principal-element alloy and preparation method thereof | |
| CN108624820A (en) | Strength and ductility product is more than the automobile high strength steel and preparation method of 45GPa% |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |