US20190300978A1 - Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts - Google Patents
Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts Download PDFInfo
- Publication number
- US20190300978A1 US20190300978A1 US16/302,997 US201716302997A US2019300978A1 US 20190300978 A1 US20190300978 A1 US 20190300978A1 US 201716302997 A US201716302997 A US 201716302997A US 2019300978 A1 US2019300978 A1 US 2019300978A1
- Authority
- US
- United States
- Prior art keywords
- steel sheet
- temperature
- ferrite
- elements chosen
- austenite
- 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.)
- Abandoned
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
-
- 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
-
- 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
-
- 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
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
-
- 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
- C21D8/0236—Cold rolling
-
- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
-
- 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
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
- C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
-
- 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
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- 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
-
- 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
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22C38/18—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
-
- 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
-
- 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
- C21D2211/004—Dispersions; Precipitations
-
- 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
- C21D2211/005—Ferrite
-
- 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
- C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
Definitions
- the present invention deals with a low density steel sheet presenting a microstructure mainly comprising austenite.
- the steel sheet according to the invention is particularly well suited for the manufacture of safety or structural parts for vehicles such as land motor vehicles.
- the first track consists of reducing the thicknesses of the steels while increasing their levels of mechanical strength.
- This solution has its limits on account of a prohibitive decrease in the rigidity of certain automotive parts and the appearance of acoustical problems that create uncomfortable conditions for the passenger, not to mention the unavoidable loss of ductility associated with the increase in mechanical strength.
- the second track consists of reducing the density of the steels by alloying them with other, lighter metals.
- the low-density ones have attractive mechanical and physical properties while making it possible to significantly reduce the weight.
- US 2003/0145911 discloses a Fe—Al—Mn—Si light steel having good formability and high strength.
- the ultimate tensile strength of such steels does not go beyond 800 MPa which does not allow taking full advantage of their low density for parts of all kinds of geometry.
- a purpose of an embodiment of the present invention therefore is to provide a steel sheet presenting a density below 7.4, an ultimate tensile strength of at least 900 MPa, a yield strength of at least 700 MPa and a uniform elongation of at least 28%.
- the steel sheet according to the present invention presents a density below 7.2, an ultimate tensile strength of at least 1000 MPa, a yield strength of at least 800 MPa and a uniform elongation of at least 30%.
- a cold rolled and annealed steel sheet comprising by weight: 0.6 ⁇ C ⁇ 1.3%, 15.0 ⁇ Mn ⁇ 35%, 5 ⁇ Al ⁇ 15%, Si ⁇ 2.40% S ⁇ 0.03%, P ⁇ 0.1%, N ⁇ 0.1%, possibly one or more optional elements chosen among Ni, Cr and Cu in an respective amount of up to 4.0%, up to 3.0% and up to 3.0% and possibly one or more elements chosen among B, Ta, Zr, Nb, V, Ti, Mo, and W in a cumulated amount of up to 2.0%, the remainder of the composition making up of iron and inevitable impurities resulting from elaboration, the microstructure of said sheet comprising optionally up to 3% of kappa carbides, optionally up to 10% of granular ferrite, the remainder being made of austenite, an average grain size of the austenite being below 6 ⁇ m, an average aspect ratio of the austenite being
- Another object can be achieved by providing a method for producing a steel sheet according to a second embodiment of the present invention, comprising A method for producing a steel sheet comprising: feeding a slab having a composition including, by weight: 0.6 ⁇ C ⁇ 1.3%, 15.0 ⁇ Mn ⁇ 35%, 5 ⁇ Al ⁇ 15%, Si ⁇ 2.40%, S ⁇ 0.03%, P ⁇ 0.1%, N ⁇ 0.1%, possibly one or more optional elements chosen among Ni, Cr and Cu in an respective amount of up to 4.0%, up to 3.0% and up to 3.0% and possibly one or more elements chosen among B, Ta, Zr, Nb, V, Ti, Mo, and W in a cumulated amount of up to 2.0%, the remainder of the composition making up of iron and inevitable impurities resulting from elaboration; reheating the slab at a temperature above 1000° C.
- Another aspect is achieved by providing parts or vehicles according to a third embodiment of the present invention comprising the steel sheets of the first or second embodiments.
- the low density steel sheet according to the invention allows for an improvement of the mechanical properties thanks to this specific microstructure.
- carbon plays an important role in the formation of the microstructure and reaching of the targeted mechanical properties. Its main role is to stabilize austenite which is the main phase of the microstructure of the steel as well as to provide strengthening. Carbon content below 0.6% will decrease the proportion of austenite, which leads to the decrease of both ductility and strength of the alloy.
- a carbon content above 1.3% can promote the precipitation of such carbides in a coarse manner on the grain boundaries (intergranular kappa carbide (Fe,Mn) 3 AlC x ), what results in the decrease of the ductility of the alloy.
- the carbon content is between 0.80 and 1.3%, more preferably between 0.8 and 1.0% by weight so as to obtain sufficient strength.
- Manganese is an important alloying element in this system, mainly due to the fact that alloying with very high amounts of manganese and carbon stabilizes the austenite down to room temperature, which can then tolerate high amounts of aluminium without being destabilized and transformed into ferrite or martensite.
- the manganese content has to be equal or higher to 15%.
- the manganese content should be controlled to be equal or greater than 15.0%, but lower than equal to 35%. In a preferred embodiment, it is equal or greater than 15.5% or even than 16.0%. Its amount is more preferably between 18 and 25%.
- Aluminium addition to high manganese austenitic steels effectively decreases the density of the alloy. In addition, it considerably increases the stacking fault energy (SFE) of the austenite, leading in turn to a change in the strain hardening behavior of the alloy. Aluminium is also one of the primary elements of nanosized kappa carbide (Fe,Mn) 3 AlC x and therefore its addition significantly enhances the formation of such carbides.
- the aluminium concentration of the present alloys should be adjusted, on one hand, to guarantee the austenite stability and the precipitation of kappa carbides, and on the other to control the formation of ferrite. Therefore, the aluminium content should be controlled to be equal or greater than 5%, but lower than equal to 15%. In a preferred embodiment, aluminium content is between 7 and 12% and preferably between 8 and 10%.
- Silicon is a common alloying element for high manganese and aluminium steels. It has a very strong effect on the formation of ordered ferrite with a D0 3 structure. Besides, silicon was shown to enhance the activity of carbon in austenite and to increase the partitioning of carbon into the kappa carbides. In addition, silicon has been described as an effective alloying element that can be used to delay or prevent the precipitation of brittle ⁇ -Mn phase. However, above a content of 2.40%, it reduces the elongation and tends to form undesirable oxides during certain assembly processes, and it must therefore be kept below this limit. Preferably, the content of silicon is below 2.0% and advantageously below 1.0.
- Sulfur and phosphorus are impurities that embrittle the grain boundaries. Their respective contents must not exceed 0.03 and 0.1% so as to maintain sufficient hot ductility.
- Nitrogen content must be 0.1% or less so as to prevent the precipitation of AlN and the formation of volume defects (blisters) during solidification.
- Nickel has a positive effect on penetration of hydrogen into the steel and, therefore it can be used as a diffusion barrier to hydrogen. Nickel can also be used as an effective alloying element because it promotes the formation of ordered compounds in ferrite, such as the B2 component, leading to additional strengthening. However, it is desirable, among others for cost reasons, to limit the nickel addition to a maximum content of 4.0% or less and preferably between 0.1 and 2.0% or between 0.1 and 1.0%. In another embodiment, the nickel amount is below 0.1%.
- Chromium may be used as optional element for increasing the strength of the steel by solution hardening. It also enhances the high temperature corrosion resistance of the steels according to the invention. However, since chromium reduces the stacking fault energy, its content must not exceed 3.0% and preferably between 0.1% and 2.0% or between 0.1 and 1.0%. In another embodiment, the chromium amount is below 0.1%.
- an addition of copper with a content not exceeding 3.0% is one mean of hardening the steel by precipitation of copper rich precipitates.
- copper is responsible for the appearance of surface defects in hot-rolled sheet.
- the amount of copper is between 0.1 and 2.0% or between 0.1 and 1.0%.
- the chromium amount is below 0.1%.
- boron can be used to limit the precipitation of intergranular kappa carbides.
- the amount of boron is below 0.1%.
- Niobium can simultaneously increase strength and toughness in the steel since it is an effective grain refiner.
- tantalum, zirconium, niobium, vanadium, titanium, molybdenum and tungsten are also elements that may optionally be used to achieve hardening and strengthening by precipitation of nitrides, carbo-nitrides or carbides.
- their cumulated amount is above 2.0%, preferably above 1.0%, there is a risk that an excessive precipitation may cause a reduction in toughness, which has to be avoided.
- the microstructure of the steel sheet according to the invention comprises optionally up to 3% of kappa carbides, optionally up to 10% of granular ferrite, the remainder being made of austenite.
- the austenitic matrix presents an average grain size below 6 ⁇ m and preferably below 4 ⁇ m, more preferably below 3 ⁇ m and has an average aspect ratio between 1.5 and 6, preferably between 2.0 and 4.0 and more preferably between 2.0 and 3.0.
- kappa carbides (Fe,Mn) 3 AlC x can be present in the microstructure of the steel sheet according to the invention, up to an amount of 3% in area fraction.
- the presence of intergranular kappa carbides is not admitted as such intergranular coarse kappa carbides may cause a decrease in the ductility of the steel.
- Ferrite can also be present in the microstructure of the sheet according to the invention up to an amount of 10.0% in area fraction, preferably up to 5.0% or more preferably up to 3.0%.
- the ferrite morphology is limited to a granular geometry, excluding ferrite in form of bands, as they drastically degrade the ductility and formability of the steel.
- the ferritic grains When present, the ferritic grains have an average grain size below 5 ⁇ m and preferably below 1 ⁇ m.
- the average aspect ratio of the ferrite, when present, is below 3.0 and preferably below 2.5.
- Such ferrite can be under the form of regular disorded ferrite a or ordered as a B2 structure with a (Fe,Mn)Al composition or as a D0 3 structure with a (Fe,Mn) 3 Al composition, so that ⁇ , B2 and D0 3 structures can be observed in the steel according to the invention.
- the steel sheet is covered by a metallic coating.
- the metallic coating can be an aluminum-based coating or a zinc-based coating.
- the aluminium-based coated comprises less than 15% Si, less than 5.0% Fe, optionally 0.1 to 8.0% Mg and optionally 0.1 to 30.0% Zn, the remainder being Al.
- the zinc-based coating comprises 0.01-8.0% Al, optionally 0.2-8.0% Mg, the remainder being Zn.
- the steel sheet according to the invention can be produced by any appropriate manufacturing method and the man skilled in the art can define one. It is however preferred to use the method according to the invention, which comprises the following steps:
- the steel sheets according to the present invention are preferably produced through a method in which an semi product, such as slabs, thin slabs, or strip made of a steel according to the present invention having the composition described above, is cast, the cast input stock is heated to a temperature above 1000° C., preferably above 1050° C. and more preferably above 1100° C. or 1150° C. or used directly at such a temperature after casting, without intermediate cooling.
- an semi product such as slabs, thin slabs, or strip made of a steel according to the present invention having the composition described above
- the final hot-rolling step is performed at a temperature above 800° C.
- the end-of-rolling temperature is preferably above or equal to 850° C.
- the strip After the hot-rolling, the strip has to be coiled at a temperature below 600° C. and preferably above 350° C. In a preferred embodiment, the coiling is performed between 350 and 450° C. to avoid excessive kappa carbide precipitation.
- the hot-rolled product obtained by the process described above is cold-rolled after a possible prior pickling operation has been performed in the usual manner.
- the cold-rolling step is performed with a reduction rate between 30 and 80%, preferably between 50 and 70%.
- a short annealing is performed by heating the sheet up to an annealing temperature comprised between 700 and 1000° C., holding it at such temperature during less than 5 minutes and cooling it at a rate of at least 30° C./s, more preferably of at least 50° C./s and even more preferably of at least 70° C./s.
- this annealing is carried out continuously.
- the steel sheet may optionally be submitted to a metallic coating operation to improve its protection against corrosion.
- the coating process used can be any process adapted to the steel of the invention. Electrolytic or physical vapor deposition can be cited, with a particular emphasis on Jet Vapor Deposition.
- the metallic coating can be based on zinc or on aluminium, for example.
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)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/IB2016/000697 WO2017203312A1 (fr) | 2016-05-24 | 2016-05-24 | Tôle d'acier laminée à froid et recuite, son procédé de production et utilisation d'un tel acier pour produire des pièces de véhicule |
IBPCT/IB2016/000697 | 2016-05-24 | ||
PCT/IB2017/000619 WO2017203347A1 (fr) | 2016-05-24 | 2017-05-23 | Tôle d'acier laminée à froid et recuite, son procédé de production et utilisation d'un tel acier pour produire des pièces de véhicule |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2017/000619 A-371-Of-International WO2017203347A1 (fr) | 2016-05-24 | 2017-05-23 | Tôle d'acier laminée à froid et recuite, son procédé de production et utilisation d'un tel acier pour produire des pièces de véhicule |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/124,997 Continuation US20230220509A1 (en) | 2016-05-24 | 2023-03-22 | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts |
Publications (1)
Publication Number | Publication Date |
---|---|
US20190300978A1 true US20190300978A1 (en) | 2019-10-03 |
Family
ID=56137460
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/302,997 Abandoned US20190300978A1 (en) | 2016-05-24 | 2017-05-23 | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts |
US18/124,997 Pending US20230220509A1 (en) | 2016-05-24 | 2023-03-22 | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/124,997 Pending US20230220509A1 (en) | 2016-05-24 | 2023-03-22 | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts |
Country Status (13)
Country | Link |
---|---|
US (2) | US20190300978A1 (fr) |
EP (1) | EP3464668A1 (fr) |
JP (1) | JP6811788B2 (fr) |
KR (1) | KR102246751B1 (fr) |
CN (1) | CN109154052B (fr) |
BR (1) | BR112018072334B1 (fr) |
CA (1) | CA3025449C (fr) |
MA (1) | MA45147A (fr) |
MX (1) | MX2018014318A (fr) |
RU (1) | RU2732713C2 (fr) |
UA (1) | UA121286C2 (fr) |
WO (2) | WO2017203312A1 (fr) |
ZA (1) | ZA201807065B (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115044830A (zh) * | 2022-06-07 | 2022-09-13 | 西北工业大学 | 一种基于孪生诱导塑性及有序强化的轻质twip钢及其制备方法 |
CN116254448A (zh) * | 2023-02-14 | 2023-06-13 | 西北工业大学 | 基于b2相及纳米有序相双析出强化的孪生诱导塑性高熵合金及其制备方法 |
CN116356190A (zh) * | 2023-04-14 | 2023-06-30 | 西北工业大学 | 一种高强度高塑性高裂纹容限高熵合金及其制备方法 |
US11987857B2 (en) | 2018-12-04 | 2024-05-21 | Arcelormittal | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts |
WO2024136296A1 (fr) * | 2022-12-19 | 2024-06-27 | 주식회사 포스코 | Tôle d'acier et son procédé de fabrication |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI715852B (zh) * | 2018-07-11 | 2021-01-11 | 永鼎應用金屬股份有限公司 | 沃斯田體合金鋼 |
CN109680213A (zh) * | 2019-02-19 | 2019-04-26 | 江苏东恒光电有限公司 | 一种用于高压金具的金属配方 |
CN114231856B (zh) * | 2021-12-22 | 2023-01-17 | 广东省科学院新材料研究所 | 一种微米碳化物增强低密度耐磨钢及其制备方法和应用 |
CN114807782B (zh) * | 2022-04-29 | 2023-02-28 | 燕山大学 | 一种弥散强化的超高强高塑轻质钢及其制造方法 |
CN115976419A (zh) * | 2022-10-09 | 2023-04-18 | 东北大学 | 高强高塑性轻质钢及其热处理工艺 |
WO2024084273A1 (fr) * | 2022-10-19 | 2024-04-25 | Arcelormittal | Poudre métallique pour fabrication additive |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006118000A (ja) * | 2004-10-21 | 2006-05-11 | Nippon Steel Corp | 延性に優れた軽量高強度鋼とその製造方法 |
JP2006176843A (ja) * | 2004-12-22 | 2006-07-06 | Nippon Steel Corp | 延性に優れた高強度低比重鋼板およびその製造方法 |
US20130118647A1 (en) * | 2010-06-10 | 2013-05-16 | Tata Steel Ijmuiden Bv | Method of producing an austenitic steel |
US20140134450A1 (en) * | 2012-11-14 | 2014-05-15 | Muhr Und Bender Kg | Method for Manufacturing a Product from a Flexibly Rolled Strip Material |
US20150211088A1 (en) * | 2011-12-23 | 2015-07-30 | Posco | Non-magnetic high manganese steel sheet with high strength and manufacturing method thereof |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1074317B1 (fr) * | 1999-08-06 | 2005-02-16 | Muhr und Bender KG | Procédé pour le laminage flexible d'une bande métallique |
DE10128544C2 (de) | 2001-06-13 | 2003-06-05 | Thyssenkrupp Stahl Ag | Höherfestes, kaltumformbares Stahlblech, Verfahren zu seiner Herstellung und Verwendung eines solchen Blechs |
DE10259230B4 (de) * | 2002-12-17 | 2005-04-14 | Thyssenkrupp Stahl Ag | Verfahren zum Herstellen eines Stahlprodukts |
JP4084733B2 (ja) * | 2003-10-14 | 2008-04-30 | 新日本製鐵株式会社 | 延性に優れた高強度低比重鋼板およびその製造方法 |
DE102004037206A1 (de) * | 2004-07-30 | 2006-03-23 | Muhr Und Bender Kg | Fahrzeugkarosserie |
FR2876711B1 (fr) * | 2004-10-20 | 2006-12-08 | Usinor Sa | Procede de revetement au trempe a chaud dans un bain de zinc des bandes en acier fer-carbone-manganese |
FR2878257B1 (fr) * | 2004-11-24 | 2007-01-12 | Usinor Sa | Procede de fabrication de toles d'acier austenitique, fer-carbone-manganese a tres hautes caracteristiques de resistance et d'allongement, et excellente homogeneite |
US20090165897A1 (en) * | 2005-02-02 | 2009-07-02 | Corus Staal Bv | Austenitic steel having high strength and formability, method of producing said steel and use thereof |
ES2455222T5 (es) * | 2010-07-02 | 2018-03-05 | Thyssenkrupp Steel Europe Ag | Acero de resistencia superior, conformable en frío y producto plano de acero compuesto de un acero de este tipo |
KR20120065464A (ko) * | 2010-12-13 | 2012-06-21 | 주식회사 포스코 | 항복비 및 연성이 우수한 오스테나이트계 경량 고강도 강판 및 그의 제조방법 |
TWI445832B (en) * | 2011-09-29 | 2014-07-21 | The composition design and processing methods of high strength, high ductility, and high corrosion resistance alloys | |
JP6377745B2 (ja) * | 2013-08-14 | 2018-08-22 | ポスコPosco | 超高強度鋼板及びその製造方法 |
WO2015099221A1 (fr) * | 2013-12-26 | 2015-07-02 | 주식회사 포스코 | Feuille d'acier ayant une résistance élevée et une basse densité et son procédé de fabrication |
KR20180121891A (ko) * | 2016-03-01 | 2018-11-09 | 타타 스틸 네덜란드 테크날러지 베.뷔. | 높은 연성을 가진 저밀도 고강도 오스테나이트 강 스트립 또는 시트, 강의 제조 방법 및 그것의 용도 |
-
2016
- 2016-05-24 WO PCT/IB2016/000697 patent/WO2017203312A1/fr active Application Filing
-
2017
- 2017-05-23 BR BR112018072334-7A patent/BR112018072334B1/pt active IP Right Grant
- 2017-05-23 MA MA045147A patent/MA45147A/fr unknown
- 2017-05-23 RU RU2018142996A patent/RU2732713C2/ru active
- 2017-05-23 KR KR1020187034111A patent/KR102246751B1/ko active IP Right Grant
- 2017-05-23 MX MX2018014318A patent/MX2018014318A/es unknown
- 2017-05-23 JP JP2018561533A patent/JP6811788B2/ja active Active
- 2017-05-23 CN CN201780030522.8A patent/CN109154052B/zh active Active
- 2017-05-23 CA CA3025449A patent/CA3025449C/fr active Active
- 2017-05-23 WO PCT/IB2017/000619 patent/WO2017203347A1/fr unknown
- 2017-05-23 EP EP17730258.5A patent/EP3464668A1/fr active Pending
- 2017-05-23 US US16/302,997 patent/US20190300978A1/en not_active Abandoned
- 2017-05-23 UA UAA201812130A patent/UA121286C2/uk unknown
-
2018
- 2018-10-23 ZA ZA2018/07065A patent/ZA201807065B/en unknown
-
2023
- 2023-03-22 US US18/124,997 patent/US20230220509A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006118000A (ja) * | 2004-10-21 | 2006-05-11 | Nippon Steel Corp | 延性に優れた軽量高強度鋼とその製造方法 |
JP2006176843A (ja) * | 2004-12-22 | 2006-07-06 | Nippon Steel Corp | 延性に優れた高強度低比重鋼板およびその製造方法 |
US20130118647A1 (en) * | 2010-06-10 | 2013-05-16 | Tata Steel Ijmuiden Bv | Method of producing an austenitic steel |
US20150211088A1 (en) * | 2011-12-23 | 2015-07-30 | Posco | Non-magnetic high manganese steel sheet with high strength and manufacturing method thereof |
US20140134450A1 (en) * | 2012-11-14 | 2014-05-15 | Muhr Und Bender Kg | Method for Manufacturing a Product from a Flexibly Rolled Strip Material |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11987857B2 (en) | 2018-12-04 | 2024-05-21 | Arcelormittal | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts |
CN115044830A (zh) * | 2022-06-07 | 2022-09-13 | 西北工业大学 | 一种基于孪生诱导塑性及有序强化的轻质twip钢及其制备方法 |
WO2024136296A1 (fr) * | 2022-12-19 | 2024-06-27 | 주식회사 포스코 | Tôle d'acier et son procédé de fabrication |
CN116254448A (zh) * | 2023-02-14 | 2023-06-13 | 西北工业大学 | 基于b2相及纳米有序相双析出强化的孪生诱导塑性高熵合金及其制备方法 |
CN116356190A (zh) * | 2023-04-14 | 2023-06-30 | 西北工业大学 | 一种高强度高塑性高裂纹容限高熵合金及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
RU2732713C2 (ru) | 2020-09-22 |
BR112018072334A2 (pt) | 2019-02-12 |
CN109154052A (zh) | 2019-01-04 |
CN109154052B (zh) | 2021-04-02 |
WO2017203312A1 (fr) | 2017-11-30 |
EP3464668A1 (fr) | 2019-04-10 |
UA121286C2 (uk) | 2020-04-27 |
RU2018142996A3 (fr) | 2020-06-05 |
BR112018072334B1 (pt) | 2023-12-19 |
KR102246751B1 (ko) | 2021-05-03 |
ZA201807065B (en) | 2019-06-26 |
JP6811788B2 (ja) | 2021-01-13 |
MA45147A (fr) | 2019-04-10 |
JP2019520478A (ja) | 2019-07-18 |
US20230220509A1 (en) | 2023-07-13 |
CA3025449C (fr) | 2022-11-22 |
WO2017203347A1 (fr) | 2017-11-30 |
RU2018142996A (ru) | 2020-06-05 |
KR20180136539A (ko) | 2018-12-24 |
MX2018014318A (es) | 2019-02-25 |
CA3025449A1 (fr) | 2017-11-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11486017B2 (en) | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts | |
CA3025449C (fr) | Tole d'acier laminee a froid et recuite, son procede de production et utilisation d'un tel acier pour produire des pieces de vehicule | |
US20240117457A1 (en) | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts | |
US11987857B2 (en) | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts | |
US11549163B2 (en) | Cold rolled and heat treated steel sheet, method of production thereof and use of such steel to produce vehicle parts | |
US20190345590A1 (en) | Cold rolled and heat treated steel sheet, method of production thereof and use of such steel to produce vehicle parts |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ARCELORMITTAL, LUXEMBOURG Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SOLER, MICHEL;GARAT, XAVIER;SIGNING DATES FROM 20181204 TO 20181207;REEL/FRAME:047834/0279 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: FINAL REJECTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: ADVISORY ACTION MAILED |
|
STCV | Information on status: appeal procedure |
Free format text: NOTICE OF APPEAL FILED |
|
STCV | Information on status: appeal procedure |
Free format text: APPEAL BRIEF (OR SUPPLEMENTAL BRIEF) ENTERED AND FORWARDED TO EXAMINER |
|
STCV | Information on status: appeal procedure |
Free format text: EXAMINER'S ANSWER TO APPEAL BRIEF MAILED |
|
STCV | Information on status: appeal procedure |
Free format text: APPEAL READY FOR REVIEW |
|
STCV | Information on status: appeal procedure |
Free format text: ON APPEAL -- AWAITING DECISION BY THE BOARD OF APPEALS |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION |