公开(公告)号：US20200263284A1

公开(公告)日：2020-08-20

申请号：US16759253

申请日：2018-11-15

Applicant: ARCELORMITTAL

Inventor： Anirban CHAKRABORTY ,  Hassan GHASSEMI-ARMAKI ,  Pascal BERTHO ,  Christian ALLELY

IPC: C22C38/58 ,  C22C38/48 ,  C22C38/44 ,  C22C38/54 ,  C22C38/50 ,  C22C38/06 ,  C22C38/02 ,  C21D9/46 ,  C21D9/56 ,  C21D1/76 ,  C23C2/06

Abstract: The present invention relates to a method for the manufacture of a coated steel sheet comprising the following successive steps: A. the coating of the steel sheet with a first coating consisting of nickel and having a thickness between 600 nm and 1400 nm, the steel sheet having the following composition in weight: 0.10

公开(公告)号：US20190255921A1

公开(公告)日：2019-08-22

申请号：US16402763

申请日：2019-05-03

Applicant: ArcelorMittal

Inventor： Christian ALLELY ,  Astrid COFFIGNY-GREGOIRE ,  Laurence DOSDAT ,  Stéphane MOREL

IPC: B60J5/04 ,  C23C2/06 ,  C22C18/04 ,  B32B37/18 ,  B32B37/12

Abstract: An Al-steel assembly is provided. The assembly includes an aluminum-based element and a steel element on at least one surface of the aluminum-based element. The steel element has a metal coating made of a zinc-aluminum-magnesium alloy and includes from 2.3% to 3.3% by weight of magnesium and from 3.6% to 3.9% by weight of aluminum. A coated surface of the steel element is in contact with the aluminum-based element in an assembly zone and a protective coating coats the assembly around and adjacent the assembly zone. A body-in-white, further assembly and method are also provided.

公开(公告)号：US20240283048A1

公开(公告)日：2024-08-22

申请号：US18292722

申请日：2022-06-21

Applicant: ArcelorMittal

Inventor： Astrid GREGOIRE ,  Christian ALLELY ,  Tiago MACHADO AMORIM ,  Matthieu AMBLARD

IPC: H01M10/655 ,  C23C2/12 ,  C23C2/40 ,  H01M10/613 ,  H01M10/6567

CPC classification number: H01M10/655 ,  C23C2/12 ,  C23C2/40 ,  H01M10/613 ,  H01M10/6567

Abstract: A cooling system of a battery pack including a metallic coated steel sheet wherein the metallic coating includes aluminium, zinc, optionally silicon and unavoidable impurities coming from the production process.

公开(公告)号：US20230137133A1

公开(公告)日：2023-05-04

申请号：US18091794

申请日：2022-12-30

Applicant: ArcelorMittal

Inventor： Anirban CHAKRABORTY ,  Hassan GHASSEMI-ARMAKI ,  Pascal BERTHO ,  Christian ALLELY

IPC: C22C38/58 ,  C21D1/76 ,  C21D9/46 ,  C21D9/56 ,  C22C38/02 ,  C22C38/06 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C23C2/06

Abstract: The present invention relates to a method for the manufacture of a coated steel sheet comprising the following successive steps: A. the coating of the steel sheet with a first coating consisting of nickel and having a thickness between 600 nm and 1400 nm, the steel sheet having the following composition in weight: 0.10

公开(公告)号：US20220356552A1

公开(公告)日：2022-11-10

申请号：US17866628

申请日：2022-07-18

Applicant: ArcelorMittal

Inventor： Tiago MACHADO AMORIM ,  Christian ALLELY ,  Gregory LEUILLIER

IPC: C23C2/12 ,  C23C2/06 ,  C23C2/28 ,  C21D1/673 ,  C21D8/02

Abstract: A hardened part coated with a phosphatable coating is provided. The part is made by a method that includes providing a steel sheet pre-coated with a metallic coating including from 4.0 to 20.0% by weight of zinc, from 1.0 to 3.5% by weight of silicon, optionally from 1.0 to 4.0% by weight of magnesium, and optionally additional elements chosen from Pb, Ni, Zr, or Hf, the content by weight of each additional element being less than 0.3% by weight, the balance being aluminum and unavoidable impurities and residuals elements. The steel sheet is cut to obtain a blank, the blank is thermally treated at a temperature between 840 and 950° C. to obtain a fully austenitic microstructure in the steel, the blank is transferred into a press tool and hot-formed to obtain a part. The part is cooled to obtain a martensitic or martensitic-bainitic microstructure or made of at least 75% of equiaxed ferrite, from 5 to 20% of martensite and bainite in amount less than or equal to 10%.

公开(公告)号：US20210395856A1

公开(公告)日：2021-12-23

申请号：US17463217

申请日：2021-08-31

Applicant: ArcelorMittal

Inventor： Tiago MACHADO AMORIM ,  Christian ALLELY ,  Raisa GRIGORIEVA ,  David DUSSAUSSOIS

IPC: C21D9/46 ,  B32B15/01 ,  C23C2/12 ,  C23C2/28 ,  C22C21/10 ,  C23C2/40 ,  C23C2/26 ,  C21D1/673 ,  C22C21/02 ,  B21D22/02 ,  C21D6/00 ,  C21D8/00

Abstract: A painted steel part includes a steel sheet precoated with a metallic coating and hot formed, the coating including: 2.0 to 24.0% by weight of zinc; 1.1 to 7.0% by weight of silicon; optionally from 0.5 to 3.0% by weight of magnesium when the amount of silicon is between 1.1 and 4.0%, and optionally additional elements chosen from Pb, Ni, Zr or Hf, a content by weight of each additional element being less than 0.3% by weight, a balance being aluminum, unavoidable impurities and residual elements resulting from feeding ingots or from a passage of the steel sheet in a molten bath; and a ratio Al/Zn by weight greater than 2.9; and a paint layer.

公开(公告)号：US20190218651A1

公开(公告)日：2019-07-18

申请号：US16359751

申请日：2019-03-20

Applicant: ARCELORMITTAL

Inventor： Christian ALLELY ,  Tiago MACHADO AMORIM ,  Joost DE STRYCKER ,  Krista Godelieve Oscar VAN DEN BERGH

IPC: C23C2/12 ,  C23C2/40 ,  C23C2/00 ,  C22C21/10

CPC classification number: C23C2/12 ,  C22C21/10 ,  C23C2/00 ,  C23C2/40

Abstract: A steel sheet with a metallic coating is provided. A composition of the metallic coating includes from 2.0 to 24.0% by weight of zinc, from 7.1 to 12.0% by weight of silicon, optionally from 1.1 to 8.0% by weight of magnesium, and optionally additional elements chosen from Pb, Ni, Zr, or Hf. The content by weight of each additional element is less than 0.3%. A balance of the composition is aluminum, unavoidable impurities and residual elements. A ratio Al/Zn is from 4.0 to 6.0.

公开(公告)号：US20180223386A1

公开(公告)日：2018-08-09

申请号：US15748395

申请日：2016-07-11

Applicant: ARCELORMITTAL

Inventor： Tiago MACHADO AMORIM ,  Christian ALLELY ,  Raisa GRIGORIEVA ,  David DUSSAUSSOIS

IPC: C21D9/46 ,  C22C21/10 ,  C23C2/12 ,  C23C2/28 ,  C23C2/40 ,  B32B15/01 ,  C21D8/00 ,  C21D6/00 ,  B21D22/02

CPC classification number: C21D9/46 ,  B21D22/022 ,  B32B15/012 ,  C21D1/673 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/005 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C21/02 ,  C22C21/10 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40

Abstract: The present invention provides a method for the manufacture of a hardened part. The method includes the provision of a steel sheet pre-coated with a metallic coating including from 2.0 to 24.0% by weight of zinc, from 1.1 to 7.0% by weight of silicon, optionally from 1.1 to 8.0% by weight of magnesium when the amount of silicon is between 1.1 and 4.0%, and optionally additional elements chosen from Pb, Ni, Zr, or Hf, the content by weight of each additional element being less than 0.3% by weight, the balance being aluminum and unavoidable impurities and residuals elements, wherein the ratio Al/Zn is above 2.9. The method further includes the cutting of the coated steel sheet to obtain a blank, the thermal treatment of the blank at a temperature between 840 and 950° C. to obtain a fully austenitic microstructure in the steel, the transfer of the blank into a press tool, the hot-forming of the blank to obtain a part, the cooling of the part in order to obtain a microstructure in steel being martensitic or martensitic-bainitic or made of at least 75% of equiaxed ferrite, from 5 to 20% of martensite and bainite in amount less than or equal to 10%.

公开(公告)号：US20160010187A1

公开(公告)日：2016-01-14

申请号：US14672906

申请日：2015-03-30

Applicant: ARCELORMITTAL FRANCE ,  THYSSENKRUPP STEEL EUROPE AG

Inventor： Colin SCOTT ,  Philippe CUGY ,  Christian ALLELY

IPC: C22C38/16 ,  C22C38/06 ,  C22C38/02 ,  B32B15/01 ,  C22C38/04 ,  C22C38/08 ,  C23C2/06 ,  C22C38/12 ,  C22C38/00

CPC classification number: C21D9/46 ,  B32B15/013 ,  C21D1/26 ,  C21D1/42 ,  C21D1/767 ,  C21D6/001 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0236 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C23C2/02 ,  C23C2/06 ,  C23C2/28 ,  C23C28/021 ,  C23C28/023 ,  C23C28/025 ,  C23C28/028 ,  Y02P10/253 ,  Y10T428/12799

Abstract: An austenitic steel sheet excellent in resistance to delayed cracking is provided. The composition of said steel comprises in weight: 0.35%≦C≦1.05% 15%≦Mn≦26% Si≦3% Al≦0.050% S≦0.030% P≦0.080% N≦0.1%, at least one metallic element X chosen among vanadium, titanium, niobium, molybdenum, chromium 0.050%≦V≦0.50%, 0.040%≦Ti≦0.50% 0.070%≦Nb≦0.50% 0.14%≦Mo≦2% 0.070%≦Cr≦2%. The composition may optionally include B, Ni and/or Cu. The remainder of the composition includes iron and unavoidable impurities inherent to fabrication, including hydrogen. The quantity Xp of the at least one metallic element under the form of carbides, nitrides or carbonitrides is, in weight: 0.030%≦Vp≦0.40% 0.030%≦Tip≦0.50% 0.040%≦Nbp≦0.40% 0.14%≦Mop≦0.44% 0.070%≦Crp≦0.6%. The hydrogen content Hmax designating the maximal hydrogen content that can be measured from a series of at least five specimens, and the quantity Xp, in weight, is such that: 1000  H max X P ≤ 3.3 .

Abstract translation: 提供了耐延迟开裂性优异的奥氏体钢板。 所述钢的组成包括：0.35％＆lt; NlE; C＆NlE; 1.05％15％＆NlE; Mn＆NlE; 26％Si＆NlE; 3％Al＆NlE; 0.050％S＆lt; E30; 0.030％P＆lt; 0.080％N＆lt; 元素X选自钒，钛，铌，钼，铬0.050％＆nlE; V＆nlE; 0.50％，0.040％＆nlE; Ti＆NlE; 0.50％0.070％＆NlE; Nb＆nlE; 0.50％0.14％＆NlE; Mo＆NlE; 2％0.070％ Cr＆nlE; 2％。 该组合物可任选地包括B，Ni和/或Cu。 组合物的其余部分包括制造中固有的铁和不可避免的杂质，包括氢。 碳化物，氮化物或碳氮化物形式的至少一种金属元素的量Xp的重量比为：0.030％＆lt; NlE; Vp＆nlE; 0.40％0.030％＆lt; Tip＆nlE; 0.50％0.040％＆nlE; Nbp＆nlE; 0.40％ ＆nlE; Mop＆nlE; 0.44％0.070％＆nlE; Crp＆nlE; 0.6％。 指定可从一系列至少五个试样测量的最大氢含量的氢含量Hmax，重量的Xp值为：1000Hmax×P≤3.3。

公开(公告)号：US20250118821A1

公开(公告)日：2025-04-10

申请号：US18292724

申请日：2022-06-21

Applicant: ArcelorMittal

Inventor： Astrid GREGOIRE ,  Christian ALLELY ,  Tiago MACHADO AMORIM ,  Matthieu AMBLARD

IPC: H01M10/613 ,  C23C2/12 ,  H01M10/625 ,  H01M50/204

Abstract: A cooling system of a battery pack including a metallic coated steel sheet wherein the metallic coating is based on aluminum and includes optionally silicon and unavoidable impurities.