CN106676410A - Multi-layer composite stainless steel material and preparation method thereof - Google Patents
Multi-layer composite stainless steel material and preparation method thereof Download PDFInfo
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/011—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of iron alloys or steels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1808—Handling of layers or the laminate characterised by the laying up of the layers
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- 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
- C21D8/0226—Hot rolling
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- 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
- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/536—Hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/001—Austenite
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- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
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- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a multi-layer composite stainless steel material which is formed in the way that two stainless steel plates with high hardness and toughness serve as composite base materials, and the composite base materials are superimposed at an interval in a layering manner. The multi-layer composite stainless steel material is high in hardness and toughness, favorable in corrosion resistance and suitable for manufacturing such products as high-quality knives and swords.
Description
Technical field
The present invention relates to a kind of stainless steel materials and preparation method thereof.
Background technology
Stainless steel clad plate is to be combined into one by certain way with other steel grades by rustless steel not of the same race or rustless steel
It is overall, it is that one kind has been provided simultaneously with the respective advantage of different materials, the new material of respective inferior position has been evaded again.This material exists
The industries such as oil, chemical industry, desalinization salt manufacturing, building of irrigation works are widely used in both at home and abroad.
Daggers and swords steel requires have high rigidity, high tenacity and good corrosion resistance, particularly knife for kitchen steel not only
Ask good obdurability to combine, be also required to meet food hygienic standard requirement.In order to reach requirements above, many enterprises attempt
Improve the combination property of daggers and swords steel with complex technique, the shear-steel and the mild steel conduct of low-carbon (LC) soft using high-carbon high rigidity
Raw material, clamps the higher hard steel of hardness and forges with the relatively low rustless steel of two panels hardness.Its both sides of product are soft made by this material
Steel also has good rust-preventing characteristic while the toughness of blade is improved, and is conducive to improving food hygiene environment；Center hard steel can
To lift the intensity and sharp maintenance of cutting edge.But, although can be changed to a certain extent with the daggers and swords for pressing from both sides the manufacture of steel method
The performance of kind daggers and swords, but this manufacture method is more suitable for the manufacture of carbon steel, and this steel is difficult to solve cutting edge hard steel nearby
Brittleness problems.
Patent CN2736159Y discloses a kind of manufacture method of MULTILAYER COMPOSITE rustless steel riffled iron.Prepared by this method
Steel steel center is one layer of rustless steel shear-steel layer, and both sides are made up of multilamellar stainless steel layer with nickel metal layer interval, surface aesthetic and
And be difficult to get rusty, but, when tempering, shear-steel and both sides steel layer are difficult to distinguish, and shear-steel is exactly on cutting edge needs manually
, while shear-steel does not have the tough layer protection of both sides at cutting edge position, easily there is tipping in special control.
Patent CN1364667A discloses a kind of multilayer folding riffled iron and its manufacture method, and it is handed over semi-hard steel and hard steel
Folded to forge, many foldings of Jing finally sandwich one layer of spring steel, using heating and using pneumatic hammer forging make spring steel and hard steel and partly
Hard steel is combined as a whole.This material is sharp, flexible, attractive in appearance.But, this method is easily got rusty, is not inconsistent with carbon steel as material
Combined foodstuff hygienic requirements, while this manufacture method high labor intensive, wasting time and energy, and is not suitable for large-scale production.
The content of the invention
The main object of the present invention is to overcome above-mentioned deficiency, there is provided a kind of MULTILAYER COMPOSITE stainless steel material, rustless steel Jing
After Overheating Treatment, with the combination of excellent hardness, toughness and corrosion resistance, it is suitable for manufacturing the kitchen knife of high-quality, outdoor knife, treasured
The daggers and swords product such as sword.
To reach above-mentioned purpose, the technical scheme is that two kinds of stainless steel materials A from high rigidity and high tenacity,
Used as composite base material, each of which is respectively into being grouped into (percentage by weight) B, rustless steel A：C=0.5~1.2%, N
0.15%th, Si 1.0%, Mn 2.0%, P 0.04%, S 0.01%, Cr=13.0~18.0%, 0.6%C+N 1.2%, Mo
4.0%th, Cr+3.3Mo+20N >=16；Rustless steel B：C 0.08%, N 0.05%, Si 1.0%, Mn 2.0%, P 0.04%, S
0.01%th, Cr=16.0~20.0%, Ni=8.0~10.0%, C+N 0.10%, Mo 4.0%, two kinds of base materials it is balance of
Fe and other inevitable impurity.
The steel produced using this kind of base material, its hardness can reach 55~60HRC, Charpy v-notch ballistic work ＞
15J, spot corrosion current potential ＞ 80mV.
In order to reach above-mentioned parameter requirement, the process of manufacture of base material is generally comprised：
The first step, with methods such as mill, milling, planes the oxide skin of A and B rustless steels both sides is removed, and then removes surface with acetone
Oil stain.Scale removal can increase the penetration ratio of composite surface, and acetone cleaning can increase faying face metallurgical binding.
Second step, by two kinds of rustless steel stratiform interval overlappings of multilamellar A and B, makes the rustless steel after being combined realize obdurability
Organically combine.Wherein, the thickness proportion of rustless steel A and rustless steel B is preferably 5~10, rustless steel A and rustless steel B thickness proportions
Can ensure that clad steel has enough intensity more than 5, and thickness proportion can ensure that clad steel has enough toughness less than 10.
3rd step, hot rolling blank is made with vacuum electron beam method in fact by edge weldering.Welding under vacuo can effectively keep away
Exempt from the oxidation of base material faying face.Original rustless steel A and B is rolled thin after rolling, and the thickness of the rustless steel A of high rigidity is less than 0.05mm,
And the thickness of the rustless steel B of high tenacity is less than 0.01mm, thickness can ensure that between such thickness very high strong at daggers and swords cutting edge
Degree, while blade has good toughness.
4th step, by hot rolling of steel billet hot rolled steel plate or steel band are made, and wherein hot rolling heating-up temperature is 1000~1200 DEG C, eventually
Temperature is rolled for 850~1000 DEG C.
5th step, first makes annealing treatment to steel plate, and annealing temperature is 780~900 DEG C, and temperature retention time is 4~20 hours,
The type of cooling is furnace cooling；Then solution treatment is carried out to steel plate, solid solubility temperature is 1050~1100 DEG C, and the type of cooling is oil
Cold or air cooling；Carry out temper to steel plate again, temperature is 180~240 DEG C, and temperature retention time is 2~6 hours, after tempering
The type of cooling is air cooling.
The steel plate that produced using above selection and method has martensite, austenite, carboritride Second Phase Particles
Heterogeneous structure, wherein martensitic structure and austenite structure are in layered distribution, and carboritride is mainly distributed on martensite group
In knitting.
Wherein it should be noted that
In steel A
With regard to the control of C content：C is the most frequently used intensified element, mainly with solution strengthening and Carbide Precipitation reinforcing two
The mode of kind plays a role.Carbide Precipitation strengthens effect is significant, and linearly rises with C content increase intensity and hardness, but steel
Plasticity, toughness and processing performance linearly decline simultaneously.To improve intensity, hardness and the processing characteristics of the present invention, by C in steel
Content is controlled 0.5~1.2%.
With regard to the control of N content：Effects of the N in this rustless steel is similar to C, mainly with solution strengthening and Carbide Precipitation
Reinforcing two ways plays a role.Meanwhile, N is also improved the effect of decay resistance, and it is resistance to improve in the presence of solution
The effect of corrosive nature is approximately 20 times of Cr.But, excessive nitrogen can cause processing performance to decline, thus the content of nitrogen is controlled
0.15%.
With regard to the control of Cr contents：Cr be improve decay resistance essential element, its span of control be 13.0%~
18.0%, corrosion resistance is not high when content is too low, and technological requirement is improved when too high.
With regard to the control of Mo contents：Molybdenum can promote stainless steel surfaces to be passivated, and improve stainless pitting corrosion and gap is rotten
The ability of erosion.
With regard to C, the control of N content：C and N are intensified elements the most frequently used in ferrous materials, and Carbonitride Precipitation is strengthened
Effect is significant, and increase intensity with C and N content and hardness linearly rises, but the plasticity of steel, toughness and processing performance be in simultaneously
Straight line declines.To improve intensity, hardness and the processing characteristics of the present invention, C+N contents in steel are controlled 0.6~1.2%.
With regard to the control of Cr+3.3Mo+20N values：Cr+3.3Mo+20N values are the weights for characterizing rustless steel decay resistance
Index is wanted, this value is higher, and to represent corrosion resistance better.Cr+3.3Mo+20N values are substantially corresponding with stainless pitting potential, when
When its value is higher than 16, stainless steel pitting potential value is higher than 80mV, just there is reliable rust-preventing characteristic, can pass through general leading to
Tested with metal ion transport.
In steel B
With regard to the control of C content：C is austenitizing formation element, and with phosphorus content stably increasing for austenite is increased
Plus, but corrosion resistance can decline, therefore its content is controlled 0.08%.
With regard to the control of N content：N is also austenitizing formation element, with the stable meeting of the increase austenite of nitrogen content
Increase, but corrosion resistance can decline, therefore its content is controlled 0.05%.
With regard to the control of Cr contents：The effect of Cr is to improve stainless corrosion resistance, such as further improves Cr contents in steel,
Though the corrosion resisting property of steel can be improved, delta ferrite level in steel can be caused quickly to increase, so as to cause hot-workability to be deteriorated.
With regard to the control of Ni contents：The effect of Ni is austenite elemental stable element so as to during high temperature cooling
Guarantor warms to room temperature.Ni contents are controlled between 8.0~10.0%.
With regard to the control of Mo contents：Molybdenum can promote stainless steel surfaces to be passivated, and improve stainless pitting corrosion and gap is rotten
The ability of erosion.
With regard to C, the control of N content：C and N are austenizers, but, too high content can cause corrosion resistance
Decline.Span of control is C+N 0.10%.
Description of the drawings
Fig. 1 is that the chemical composition of various embodiments of the present invention shows table.
Fig. 2 is the performance parameter table of various embodiments of the present invention.
Fig. 3 is the microcosmic layer structure photo after the embodiment of the present invention 3 is polished, polished Jing section under the microscope.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Diagram is closed, above-mentioned technical proposal is expanded on further.
With reference to embodiment and accompanying drawing, the present invention will be further described.Using each group embodiment as shown in Figure 1, by two
Slow cooling after substrate of steel plate is first annealed 20 hours at 780 DEG C is planted, then 1050 DEG C of quenching air coolings of Jing, then after being tempered 6 hours at 180 DEG C
Air cooling, its section finally polished, polished, and observes Cross Section Morphology under an optical microscope.Gray layer is high rigidity horse in Fig. 1
Family name body rustless steel A, its thickness is about 0.05mm；White layer is the austenitic stainless steel B of high tenacity, and its thickness is about
0.01mm.Two kinds of stainless Thickness ratios are about 5：1.Hardness of this steel after heat treatment can reach 55HRC, spot corrosion electricity
Position reaches 120mV, and Charpy v-notch ballistic work reaches 25J.
The hardness of steel of the present invention is mainly stainless by the content of the C in control high-hardness stainless steel A and N, thickness and two kinds
Come what is ensured, in addition to C content reaches more than 0.5%, its C+N content has reached 0.6% to embodiment 1~5 to the Thickness ratio of steel, height
The ratio of hardness rustless steel A and high tenacity rustless steel B thickness all reaches 5, per layer of thickness≤0.05mm, the steel after being at this moment combined
After heat treatment hardness all reaches 55HRC.Comparatively speaking, although the phosphorus content in comparative example 6 has reached 0.51%, high rigidity
The ratio of martensitic stain less steel A and high tenacity austenitic stainless steel thickness also reaches 5, and per layer of maximum gauge is about 0.04mm,
But C+N contents are only 0.56%, the hardness after heat treatment is 53HRC, not up to use requirement.
What the toughness of steel of the present invention was mainly realized by the Thickness ratio of high-hardness stainless steel A and high tenacity rustless steel B.When
The ratio of the former with the latter cannot ensure that ballistic work reaches more than 15J when being more than 10.High rigidity is stainless in embodiment 1~5
The ratio of steel A and high tenacity rustless steel thickness is all controlled 5~10, and the ballistic work after heat treatment has all reached more than 15J. and it is right
When ratio in ratio 7 expands 12 to, ballistic work is only 7J, it is impossible to reach use requirement.
The decay resistance of steel of the present invention is mainly by the relatively more slightly worse high-hardness stainless steel A's of control corrosion resistance
Cr+3.3Mo+20N values come existing, and Cr+3.3Mo+20N values are higher, and to represent decay resistance better.Can be seen by table 1, be implemented
The Cr+3.3Mo+20N values of high-hardness stainless steel A are all higher than 16 in example 1~5, and correspondingly, their pitting potential all reaches
80mV, representative has reliable rust-preventing characteristic, can pass through general versatile metal ion migration test, and meeting food hygiene makes
With requiring.And in comparative example 7 Cr+3.3Mo+20N values be 14.59, its pitting potential value be 20mV, rust-preventing characteristic relative mistake.
Ultimate principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description this
The principle of invention, of the invention without departing from the spirit and scope of the present invention also to have various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent is defined.
Claims (7)
1. a kind of MULTILAYER COMPOSITE stainless steel material, is formed by stacking by two kinds of stainless steel materials of A, B by stratiform interval, and its feature exists
In, above two stainless steel materials each component percentage by weight specifically,
The rustless steel A includes：C=0.5~1.2%, N 0.15%, Si 1.0%, Mn 2.0%, P 0.04%, S
0.01%th, Cr=13.0~18.0%, Mo 4.0%, balance of Fe；
The rustless steel B includes：C 0.08%；N 0.05%, Si 1.0%, Mn 2.0%, P 0.04%, S 0.01%, Cr
=16.0~20.0%, Ni=8.0~10.0%, Mo 4.0%, balance of Fe.
2. MULTILAYER COMPOSITE rustless steel according to claim 1, it is characterised in that in rustless steel A, component should also meet
0.6%C+N 1.2%, Cr+3.3Mo+20N >=16.
3. MULTILAYER COMPOSITE stainless steel material according to claim 1, it is characterised in that in rustless steel B, component should also expire
Sufficient C+N 0.10%.
4. the MULTILAYER COMPOSITE stainless steel material according to claims 1 to 3 any one, it is characterised in that：Stainless steel materials A
It is 5~10 with the layer thickness ratio of stainless steel materials B, per layer of thickness 0.05mm after rolling.
5. MULTILAYER COMPOSITE stainless steel material according to claim 4, it is characterised in that the steel after overlapping have geneva
Body, austenite complex tissue and carboritride, wherein martensitic structure and austenite structure are alternately distributed in stratiform, carbon nitrogen
Compound is mainly distributed in martensitic structure.
6. MULTILAYER COMPOSITE stainless steel material according to claim 5, it is characterised in that its hardness is 55~60HRC, Charpy
V-notch ballistic work ＞ 15J, spot corrosion current potential ＞ 80mV.
7. the method for a kind of manufacture MULTILAYER COMPOSITE stainless steel material as claimed in claim 6, it is characterised in that specifically include following
Step：
I) polish：Oxide skin on the composite surface of stainless steel materials A, B both sides is removed respectively by mill, milling, plane method, acetone is used respectively
Remove the oil stain on surface；
Ii) overlap：Taking multilamellar rustless steel A and rustless steel B respectively carries out stratiform interval overlapping；
Iii) into material：Edge weldering is made by hot rolling blank using vacuum electron beam method in fact；
Iv) hot rolling：Hot rolling of steel billet is made into steel plate or steel band, wherein hot-rolled temperature is 1000~1200 DEG C, and finishing temperature is 850
~1000 DEG C
V) anneal：Steel plate is carried out first a) making annealing treatment, annealing temperature is 780~900 DEG C, temperature retention time is 4~20 hours,
The type of cooling is furnace cooling；Then b) solution treatment is carried out to steel plate, solid solubility temperature is 1050~1100 DEG C, and the type of cooling is
Oil cooling or air cooling；Then c) temper is carried out to steel plate, temperature is 180~240 DEG C, and temperature retention time is 2~6 hours,
The type of cooling is air cooling after tempering.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107217206A (en) * | 2017-06-05 | 2017-09-29 | 苏州双金实业有限公司 | A kind of environment friendly heat resistant clad steel |
| CN109397788A (en) * | 2018-10-30 | 2019-03-01 | 西安理工大学 | A kind of high-manganese steel-base multi-layer wear-resistant composite material and preparation method |
| CN111331963A (en) * | 2020-03-27 | 2020-06-26 | 嘉兴吉森科技有限公司 | Multilayer composite steel and manufacturing method of multilayer composite steel cutter |
| CN111760909A (en) * | 2019-04-02 | 2020-10-13 | 中国科学院金属研究所 | High-speed impact resistant multilayer metal composite material and preparation method thereof |
| CN111760908A (en) * | 2019-04-02 | 2020-10-13 | 中国科学院金属研究所 | Ultrathin multilayer metal composite strip and preparation method thereof |
| CN112203787A (en) * | 2018-05-28 | 2021-01-08 | 达玛斯蒂尔股份公司 | Blank for Damascus pattern product |
| CN113829697A (en) * | 2020-06-24 | 2021-12-24 | 宝山钢铁股份有限公司 | Multilayer composite cold-rolled steel plate and manufacturing method thereof |
| CN114074458A (en) * | 2021-11-17 | 2022-02-22 | 成都先进金属材料产业技术研究院股份有限公司 | Composite steel plate for multilayer kitchen knife and preparation method thereof |
| CN114395722A (en) * | 2021-03-22 | 2022-04-26 | 武汉钜能科技有限责任公司 | Composite alloy plate and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111760909A (en) * | 2019-04-02 | 2020-10-13 | 中国科学院金属研究所 | High-speed impact resistant multilayer metal composite material and preparation method thereof |
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Application publication date: 20170517 |