公开(公告)号：US12139782B2

公开(公告)日：2024-11-12

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 ,  C23C2/02 ,  C23C2/06 ,  B23K11/11 ,  B23K35/02 ,  B23K35/28 ,  B23K35/30 ,  B23K103/04

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：US12134245B2

公开(公告)日：2024-11-05

申请号：US18131622

申请日：2023-04-06

Applicant: ArcelorMittal

Inventor： Christian Allely ,  Pascal Bertho ,  Anirban Chakraborty ,  Hassan Ghassemi-Armaki

IPC: B32B15/01 ,  B23K11/11 ,  C21D8/02 ,  C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/02 ,  C23C2/28 ,  C23C10/28 ,  C25D3/12 ,  C25D3/22 ,  C25D5/12 ,  C25D5/50

Abstract: The present invention relates to a method for the manufacture of a galvannealed steel sheet including the steps of A.) coating of the steel sheet with a first coating consisting of nickel and having a thickness between 150 nm and 650 nm, the steel sheet having the following composition in weight percentage 0.10

公开(公告)号：US12104255B2

公开(公告)日：2024-10-01

申请号：US17866628

申请日：2022-07-18

Applicant: ArcelorMittal

Inventor： Tiago Machado Amorim ,  Christian Allely ,  Gregory Leuillier

IPC: C23C2/12 ,  C21D1/673 ,  C21D8/00 ,  C21D8/02 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  C22C21/10 ,  C22F1/053 ,  C23C22/07

CPC classification number: C23C2/12 ,  C21D1/673 ,  C21D8/0257 ,  C23C2/06 ,  C23C2/26 ,  C23C2/261 ,  C23C2/28 ,  C23C2/29 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008

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：US11680331B2

公开(公告)日：2023-06-20

申请号：US16754011

申请日：2018-10-19

Applicant: ArcelorMittal

Inventor： Anirban Chakraborty ,  Pascal Bertho ,  Hassan Ghassemi-Armaki ,  Christian Allely ,  Tiago Machado Amorim

IPC: C25D3/22 ,  B32B15/01 ,  B32B7/05 ,  B23K11/11 ,  C21D6/00 ,  C21D9/46 ,  C22C18/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/38 ,  C23F17/00

CPC classification number: C25D3/22 ,  B23K11/11 ,  B32B7/05 ,  B32B15/012 ,  C21D6/002 ,  C21D6/005 ,  C21D6/008 ,  C21D9/46 ,  C22C18/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/38 ,  C23F17/00 ,  B32B2250/02 ,  B32B2605/08 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008

Abstract: A steel sheet coated with a coating comprising from 10 to 40% of nickel, the balance being zinc, such steel sheet having a microstructure comprising from 1 to 50% of residual austenite, from 1 to 60% of martensite and optionally at least one element chosen from: bainite, ferrite, cementite and pearlite, and the following chemical composition in weight: 0.10

公开(公告)号：US11668002B2

公开(公告)日：2023-06-06

申请号：US16642559

申请日：2018-07-20

Applicant: ARCELORMITTAL

Inventor： Daniel Chaleix ,  Christian Allely ,  Eric Silberberg ,  Sergio Pace ,  Lucie Gaouyat

IPC: C23C2/02 ,  C23C14/16 ,  C23C2/06 ,  C23C2/12 ,  C23C2/36 ,  C23C14/02 ,  C23C14/24 ,  C23C14/35 ,  C23C14/56 ,  C23C28/02

CPC classification number: C23C14/16 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/36 ,  C23C14/028 ,  C23C14/24 ,  C23C14/35 ,  C23C14/562 ,  C23C28/023

Abstract: A coated metallic substrate including at least a first coating of aluminum, such first coating having a thickness below 5 μm and being directly topped by a second coating including from 0.5 to 5.9% by weight of magnesium, the balance being zinc.

公开(公告)号：US11162153B2

公开(公告)日：2021-11-02

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 ,  C23C2/26 ,  C21D1/673 ,  C22C21/02

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：US10889884B2

公开(公告)日：2021-01-12

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 ,  C22C21/00 ,  C23C2/28 ,  C21D8/00 ,  C22C38/00 ,  B32B15/18 ,  B32B15/20 ,  B32B15/01 ,  B32B15/04 ,  C22C21/04 ,  C23C30/00 ,  C23C28/02 ,  C22C21/02 ,  C22C21/18 ,  C23C2/04 ,  C23C2/06 ,  C22C21/08 ,  C23C2/02 ,  C22C21/14 ,  C22C21/06 ,  C23C2/26 ,  C23C2/34 ,  C22C21/16 ,  C22C21/10

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：US20180274062A1

公开(公告)日：2018-09-27

申请号：US15765831

申请日：2016-09-30

Applicant: ArcelorMittal

Inventor： Christian Allely ,  Tiago Machado Amorim ,  Beril Corlu ,  Joost De Strycker

IPC: C22C21/10 ,  B32B15/01 ,  C23C2/12 ,  C23C2/40

Abstract: A steel sheet coated with a metallic coating is provided. The coating includes from 1.0 to 22.0% by weight of zinc, from 0.1 to 1.0% by weight of titanium, from 1.6 to 15.0% by weight of silicon, below 0.5% by weight of magnesium, below 0.05% by weight of La or Ce or both, below 0.2% by weight of Sn and optionally, less than 0.3% by weight of additional elements chosen from Sb, Pb, Ca, Mn, Cr, Ni, Zr, In, Hf or Bi. A balance of the coating includes aluminum and optionally unavoidable impurities and residual elements. A microstructure of the coating does not include Al—Zn binary phases. A coated part is also provided.

公开(公告)号：US20150284861A1

公开(公告)日：2015-10-08

申请号：US14394885

申请日：2012-04-17

Applicant: ARCELORMITTAL INVESTIGAIÓN Y DESARROLLO, S.L.

Inventor： Christian Allely ,  Julie Chassagne ,  Beril Corlu

IPC: C23F13/14 ,  C21D9/00 ,  C21D6/00 ,  C22C38/58 ,  C22C38/54 ,  C22C38/50 ,  C22C38/48 ,  C22C38/44 ,  C22C38/42 ,  C22C38/40 ,  C22C38/38 ,  C22C38/32 ,  C22C38/28 ,  C22C38/26 ,  C22C38/22 ,  C22C38/20 ,  C22C38/18 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/08 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D8/00

CPC classification number: C23F13/14 ,  C21D1/673 ,  C21D6/001 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D6/008 ,  C21D8/005 ,  C21D8/0278 ,  C21D9/0068 ,  C21D9/46 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22 ,  C22C38/26 ,  C22C38/28 ,  C22C38/32 ,  C22C38/38 ,  C22C38/40 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  C23C2/04 ,  C23C2/12 ,  C23C2/28

Abstract: This invention relates to a steel sheet provided with a sacrificial cathodic protection layer comprising from 5 to 50% zinc by weight, from 0.1 to 15% silicon by weight and optionally up to 10% magnesium by weight and up to 0.3% by weight, in cumulative content, of additional elements, and also comprising a protection elements to be selected from among tin in a percentage by weight between 0.1 and 5%, indium in a percentage by weight between 0.01 and 0.5% and combinations thereof, the balance consisting of aluminum and residual elements or unavoidable impurities. The invention further relates to a method for the fabrication of parts by hot or cold stamping and the parts that can be thereby obtained.

Abstract translation: 本发明涉及一种钢板，其具有牺牲阴极保护层，该牺牲阴极保护层包含重量比为5％至50％的锌，重量百分比为0.1至15％，重量百分比最高为10％，最多为0.3％ 累积含量的另外的元素，并且还包含选自锡中的重量百分比在0.1和5％之间的保护元素，0.01重量％至0.5重量％的铟及其组合，余量由铝 和残留元素或不可避免的杂质。 本发明还涉及一种用于通过热或冷冲压制造零件的方法以及由此获得的零件。

公开(公告)号：US20150093594A1

公开(公告)日：2015-04-02

申请号：US14371642

申请日：2012-01-01

Applicant: ARCELORMITTAL INVESTIGACIÓN Y DESARROLLO, S.L.

Inventor： Daniel Chaleix ,  Christian Allely ,  Maxime Monnoyer ,  Pascale Feltin

IPC: C25D11/34 ,  C25D5/48

Abstract: The present invention provides an aqueous treatment solution containing sulfate ions SO42− in a concentration greater than or equal to 0.01 mol/l, to treat sheet metal including a steel substrate coated on at least one face with a coating including at least zinc and magnesium to reduce blackening or tarnishing of the sheet metal during storage. The present invention also provides a sheet metal treated with a solution of this type.

Abstract translation: 本发明提供一种含有浓度大于或等于0.01mol / l的硫酸根离子SO42-的含水处理溶液，以处理包括至少涂覆在至少一个面上的钢基材的金属片，所述涂层至少包括锌和镁的涂层， 在储存期间减少金属板的变黑或变色。 本发明还提供了用这种溶液处理的金属片。