公开(公告)号：US12043887B2

公开(公告)日：2024-07-23

申请号：US16682834

申请日：2019-11-13

Applicant: Novelis Inc.

Inventor： Hany Ahmed ,  Wei Wen ,  Corrado Bassi ,  Aude Despois ,  Guillaume Florey ,  Xavier Varone

IPC: C22F1/05 ,  C22C21/04 ,  C22C21/06 ,  C22C21/08 ,  C22C21/14 ,  C22C21/16 ,  C22F1/043 ,  C22F1/047 ,  C22F1/057

CPC classification number: C22F1/05 ,  C22C21/04 ,  C22C21/06 ,  C22C21/08 ,  C22C21/14 ,  C22C21/16 ,  C22F1/043 ,  C22F1/047 ,  C22F1/057

Abstract: Provided are new high strength 6xxx aluminum alloys and methods of making aluminum sheets thereof. These aluminum sheets may be used to fabricate components which may replace steel in a variety of applications including the transportation industry. In some examples, the disclosed high strength 6xxx alloys can replace high strength steels with aluminum. In one example, steels having a yield strength below 340 MPa may be replaced with the disclosed 6xxx aluminum alloys without the need for major design modifications.

公开(公告)号：US12012655B2

公开(公告)日：2024-06-18

申请号：US17834335

申请日：2022-06-07

Applicant: ArcelorMittal

Inventor： Christian Allely ,  Tiago Machado Amorim ,  Joost De Strycker ,  Krista Godelieve Oscar Van Den Bergh

IPC: C22C38/00 ,  B32B15/01 ,  B32B15/04 ,  B32B15/18 ,  B32B15/20 ,  C21D8/00 ,  C22C21/00 ,  C22C21/02 ,  C22C21/04 ,  C22C21/06 ,  C22C21/08 ,  C22C21/10 ,  C22C21/14 ,  C22C21/16 ,  C22C21/18 ,  C23C2/00 ,  C23C2/02 ,  C23C2/04 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/34 ,  C23C2/40 ,  C23C28/02 ,  C23C30/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58

CPC classification number: C23C2/12 ,  B32B15/01 ,  B32B15/012 ,  B32B15/013 ,  B32B15/04 ,  B32B15/043 ,  B32B15/18 ,  B32B15/20 ,  C21D8/005 ,  C22C21/00 ,  C22C21/02 ,  C22C21/04 ,  C22C21/06 ,  C22C21/08 ,  C22C21/10 ,  C22C21/14 ,  C22C21/16 ,  C22C21/18 ,  C22C38/00 ,  C23C2/02 ,  C23C2/024 ,  C23C2/026 ,  C23C2/04 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28 ,  C23C2/29 ,  C23C2/34 ,  C23C2/40 ,  C23C28/02 ,  C23C28/021 ,  C23C28/023 ,  C23C30/00 ,  C23C30/005 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  C22C38/28 ,  C22C38/32 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/50 ,  C22C38/54 ,  C22C38/58 ,  Y10T428/12438 ,  Y10T428/12736 ,  Y10T428/1275 ,  Y10T428/12757 ,  Y10T428/12764 ,  Y10T428/12951 ,  Y10T428/12972 ,  Y10T428/12979 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/263 ,  Y10T428/264 ,  Y10T428/265

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：US11932928B2

公开(公告)日：2024-03-19

申请号：US16412035

申请日：2019-05-14

Applicant: Novelis Inc.

Inventor： Aude Despois ,  Guillaume Florey ,  Rajeev G. Kamat ,  Cyrille Bezencon ,  David Leyvraz ,  Samuel R. Wagstaff

IPC: C22F1/05 ,  C22C21/04 ,  C22C21/08

CPC classification number: C22F1/05 ,  C22C21/04 ,  C22C21/08

Abstract: Provided are new high strength 6xxx and 7xxx series aluminum alloys and methods of making aluminum products thereof. These aluminum products may be used to fabricate components which may replace steel in a variety of applications including the automotive industry. In some examples, the disclosed high strength 6xxx and 7xxx series aluminum alloys can replace high strength steels with aluminum. In one example, steels having a yield strength below 450 MPa may be replaced with the disclosed 6xxx or 7xxx series aluminum alloys without the need for major design modifications.

公开(公告)号：US20230383384A1

公开(公告)日：2023-11-30

申请号：US18169746

申请日：2023-02-15

Applicant: MetaLi LLC

Inventor： Madelyn Li ,  Jasmine Li

IPC: C22C21/04 ,  B22D17/20 ,  B22D21/00 ,  C22C23/00

CPC classification number: C22C21/04 ,  B22D17/20 ,  B22D21/007 ,  C22C23/00

Abstract: Methods and systems for high pressure die casting with metal alloys of low silicon content are described. Metal alloys can be modified with nanoparticles to achieve high fluidity and hot cracking resistance to be compatible with high pressure die casting. The die cast metal parts have high strength, high ductility, and high thermal and electrical conductivity. The die cast metal parts can be anodized with different colors.

公开(公告)号：US11795535B2

公开(公告)日：2023-10-24

申请号：US17420344

申请日：2019-12-27

Applicant: Salzgitter Flachstahl GmbH

Inventor： Marc Debeaux ,  Friedrich Luther ,  Thomas Koll

IPC: C23C2/12 ,  C23C2/28 ,  C23C2/20 ,  C21D1/25 ,  B32B15/01 ,  C22C21/02 ,  C21D1/26 ,  C25D11/04 ,  C23C28/00 ,  C23C2/40 ,  C23F1/36 ,  C23C2/26 ,  C21D1/00 ,  C25F3/04 ,  C25D11/02 ,  C23C30/00 ,  C21D8/02 ,  C21D8/00 ,  C22C21/04 ,  C23C28/02 ,  C21D9/46 ,  C21D9/48 ,  C21D1/34 ,  C21D8/04 ,  C23F3/03 ,  B32B15/04 ,  C23F3/02 ,  B32B3/00 ,  C25D11/06 ,  B32B15/18 ,  C25D11/24 ,  C25D11/08 ,  C25D11/10

CPC classification number: C23C2/12 ,  B32B3/00 ,  B32B15/012 ,  B32B15/04 ,  B32B15/043 ,  B32B15/18 ,  C21D1/00 ,  C21D1/25 ,  C21D1/26 ,  C21D1/34 ,  C21D8/005 ,  C21D8/0205 ,  C21D8/0278 ,  C21D8/0405 ,  C21D9/46 ,  C21D9/48 ,  C22C21/02 ,  C22C21/04 ,  C23C2/20 ,  C23C2/26 ,  C23C2/261 ,  C23C2/265 ,  C23C2/28 ,  C23C2/29 ,  C23C2/40 ,  C23C28/021 ,  C23C28/321 ,  C23C28/345 ,  C23C30/00 ,  C23C30/005 ,  C23F1/36 ,  C23F3/02 ,  C23F3/03 ,  C25D11/02 ,  C25D11/026 ,  C25D11/04 ,  C25D11/06 ,  C25D11/24 ,  C25F3/04 ,  C21D2211/001 ,  C21D2211/008 ,  C25D11/08 ,  C25D11/10 ,  Y10T428/1259 ,  Y10T428/12458 ,  Y10T428/12556 ,  Y10T428/12569 ,  Y10T428/12583 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12736 ,  Y10T428/12757 ,  Y10T428/12764 ,  Y10T428/12972 ,  Y10T428/12993 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/24975 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/27 ,  Y10T428/273

Abstract: An aluminum-based coating of a flat steel product is applied in a hot-dipping method and comprises a mass percentage of silicon within a given range. The coating for a flat steel product, in particular for press mold hardening components, offers a shortened required minimum oven dwell time and a sufficiently large processing window when heating in an oven. This is achieved in that the surface of the coating has a degree of absorption for thermal radiation ranging between 0.35 and 0.95 prior to an annealing treatment, where the degree of absorption relates to an oven temperature ranging from 880 to 950° C. during the austenitizing annealing treatment. The invention additionally relates to an improved method for producing a flat steel product with an aluminum-based coating, to an inexpensive method for producing press-hardened components from such flat steel products, and to a press-hardened component made of such flat steel products.

公开(公告)号：US11584977B2

公开(公告)日：2023-02-21

申请号：US15895497

申请日：2018-02-13

Applicant: ALCOA USA CORP.

Inventor： Xinyan Yan ,  Jen C. Lin

IPC: C22C21/04 ,  C22F1/043 ,  B22D21/04 ,  B22D21/00 ,  C22C21/02

Abstract: New 3xx aluminum casting alloys are disclosed. The aluminum casting alloys generally include from 6.5 to 11.0 wt. % Si, from 0.20 to 0.80 wt. % Mg, from 0.05 to 0.50 wt. % Cu, from 0.10 to 0.80 wt. % Mn, from 0.005 to 0.05 wt. % Sr, up to 0.25 wt. % Ti, up to 0.30 wt. % Fe, and up to 0.20 wt. % Zn, the balance being aluminum and impurities.

公开(公告)号：US11578389B2

公开(公告)日：2023-02-14

申请号：US16262891

申请日：2019-01-30

Applicant: HRL Laboratories, LLC

Inventor： John H. Martin ,  Brennan D. Yahata

IPC: C22C21/10 ,  B23K26/342 ,  B33Y70/00 ,  C22C32/00 ,  C22C21/06 ,  C22F1/053 ,  C22C21/04 ,  B33Y80/00 ,  C22C1/04 ,  B23K103/10

Abstract: Some variations provide an aluminum alloy feedstock for additive manufacturing, the aluminum alloy feedstock comprising from 79.8 wt % to 88.3 wt % aluminum; from 1.1 wt % to 2.1 wt % copper; from 3.0 wt % to 4.6 wt % magnesium; from 7.1 wt % to 9.0 wt % zinc; and from 0.5 wt % to 2.8 wt % zirconium as a grain-refiner element. The aluminum alloy feedstock may be in the form of an ingot powder. In some variations, the aluminum alloy feedstock comprises from 81.3 wt % to about 87.8 wt % aluminum; from 1.2 wt % to 2.0 wt % copper; from 3.2 wt % to 4.4 wt % magnesium; from 7.3 wt % to 8.7 wt % zinc; and from 0.5 wt % to 2.8 wt % zirconium.

公开(公告)号：US20230013726A1

公开(公告)日：2023-01-19

申请号：US17785218

申请日：2020-12-03

Applicant: AUDI AG

Inventor： Jaan Mattes REILING ,  Jan GAUGLER ,  Marc HUMMEL

IPC: B60B21/02 ,  B22D21/04 ,  C22C21/04 ,  C22F1/043

Abstract: A method for producing a motor vehicle rim made of an aluminum alloy for a wheel of a motor vehicle, the motor vehicle rim having a rim base limited on opposite sides by an outer horn and an inner horn, a hub with a central recess and a hole circle, and a rim center connecting the rim base and the hub to one another. The motor vehicle rim is produced in one piece and continuously in a casting mold by die casting of a casting material, the casting material being the aluminum alloy.

公开(公告)号：US11420419B2

公开(公告)日：2022-08-23

申请号：US16063808

申请日：2016-12-22

Applicant: POSCO

Inventor： Young-Ha Kim ,  Hyeon-Seok Hwang ,  Kwang-Geun Chin ,  Heung-Yun Kim

IPC: B32B15/01 ,  C23C2/12 ,  C23C2/28 ,  C23C2/40 ,  C22C38/04 ,  C22C38/12 ,  C22C38/10 ,  C22C38/06 ,  C22C38/14 ,  C22C38/02 ,  C22C38/00 ,  C21D6/00 ,  C23C2/02 ,  C21D9/46 ,  C22C21/00 ,  C22C21/02 ,  C22C38/18 ,  C22C38/60 ,  C22C38/24 ,  C22C38/46 ,  C22C38/48 ,  C22C21/06 ,  C22C38/22 ,  B32B15/04 ,  C22C38/50 ,  C22C21/04 ,  C23C28/02 ,  B32B15/18 ,  C22C38/28 ,  C22C38/44 ,  C23C30/00 ,  C22C38/26

Abstract: Provided are an austenite-based molten aluminum-plated steel sheet comprising: a steel plate which contains, by weight %, 0.3 to 0.9% of C, 12 to 25% of Mn, 0.5 to 2.5% of Si, 0.3 to 3.0% of Al, 0.01 to 0.5% of Ti, 0.05 to 0.5% of V, 0.01-0.5% of Mo, 0.01-0.2% of Sn, 0.001-0.1% of Co, and 0.001-0.1% of W, the remainder being Fe and unavoidable impurities; and a molten aluminum-based plated layer formed on a surface of the steel plate, and a method for producing the same.

公开(公告)号：US20220145486A1

公开(公告)日：2022-05-12

申请号：US17522745

申请日：2021-11-09

Applicant: Lawrence Livermore National Security, LLC ,  Eck Industries, Inc. ,  UT-Battelle, LLC ,  University of Tennessee Research Foundation ,  Iowa State University Research Foundation, Inc.

Inventor： Scott K. McCall ,  David Weiss ,  Michael S. Kesler ,  Michael J. Thompson ,  Orlando Rios ,  Hunter B. Henderson ,  Zachary Cole Sims ,  Ryan T. Ott

IPC: C25D11/04 ,  C22C21/04

Abstract: A product includes an aluminum alloy having an anodized layer. The alloy has a bulk composition including at least 1 wt. % of one or more rare earth elements (REEs). A product includes microstructures extending across a boundary defined between an anodized layer and an unoxidized alloy. Each microstructure includes an intermetallic phase transitioning to an oxidized intermetallic phase across the boundary. A product includes an anodized layer where up to 90% of a thickness of the layer includes voids resulting at least in part from dissolution of a rare earth element oxidized intermetallic phase. The voids are in a morphology of the dissolved oxidized intermetallic phase.