公开(公告)号：US20250051881A1

公开(公告)日：2025-02-13

申请号：US18755223

申请日：2024-06-26

Applicant: Zhongkai University of Agriculture and Engineering

Inventor： Xianna MENG ,  Zhipeng WEN ,  Yi WANG ,  Lixing DING

IPC: C22C1/08 ,  B33Y80/00 ,  C22C18/04 ,  C22F1/16

Abstract: A high-strength and high-damping Al—Zn bimetal alloy and a preparation method thereof are provided in the present application, belonging to the field of bimetal alloy materials. The high-strength and high-damping Al—Zn bimetal is obtained from an Al alloy and a Zn alloy or Zn; the bimetal is structured by an Al alloy skeleton and its embedded Zn alloy; the alloy material has the high strength of an Al alloy and the high damping performance of a Zn alloy.

公开(公告)号：US20250003047A1

公开(公告)日：2025-01-02

申请号：US18711915

申请日：2022-12-06

Applicant: NIPPON STEEL CORPORATION

Inventor： Shota HAYASHIDA ,  Takuya MITSUNOBU ,  Hiroshi TAKEBAYASHI

IPC: C23C2/40 ,  B32B15/01 ,  C22C18/04 ,  C22C21/00 ,  C22C21/02 ,  C22C21/10 ,  C22C30/06 ,  C22C38/04 ,  C23C2/02 ,  C23C2/04 ,  C23C2/06 ,  C23C2/12 ,  C23C2/20 ,  C23C2/28

Abstract: This plated steel sheet includes a base steel sheet, a plated layer formed on a surface of the base steel sheet, and an oxide film formed on a surface of the plated layer, the plated layer has a chemical composition containing Sc: 0.000010 to 4.0% in mass %, and has a cross section, in the thickness direction, in which the area fraction of an intermetallic compound phase containing Sc and having an equivalent circle diameter of 5.0 μm or less is 0.1 to 10.0%, and the oxide film has a thickness of 10 nm or more.

公开(公告)号：US20240360541A1

公开(公告)日：2024-10-31

申请号：US18688709

申请日：2022-09-27

Applicant: POSCO CO., LTD

Inventor： Tae-Chul Kim ,  Sung-Joo Kim ,  Myung-Soo Kim ,  Bong-Hwan Yoo ,  Yong-Kyun Cho ,  Il-Ryoung Sohn

IPC: C23C2/06 ,  B32B15/01 ,  C22C18/04 ,  C23C2/20 ,  C23C2/28 ,  C23C2/40

CPC classification number: C23C2/06 ,  B32B15/013 ,  C22C18/04 ,  C23C2/20 ,  C23C2/29 ,  C23C2/40

Abstract: The present invention provides a Zn—Mg—Al plated steel sheet having excellent in corrosion resistance and bendability, and a method for manufacturing same. And more specifically, the present invention provides a Zn—Mg—Al-based plated steel sheet having excellent in corrosion resistance, bendability, and plating adhesion, and a method for manufacturing the same.

公开(公告)号：US20240336996A1

公开(公告)日：2024-10-10

申请号：US18703998

申请日：2022-08-16

Applicant: NIPPON STEEL CORPORATION

Inventor： Kohei TOKUDA ,  Mamoru SAITO ,  Yuto FUKUDA ,  Yasuto GOTO ,  Yasuhiro MAJIMA ,  Naoyuki YAMATO ,  Fumiaki NAKAMURA ,  Hidetoshi SHINDO ,  Koji KAWANISHI ,  Kenichiro MATSUMURA ,  Hiroshi TAKEBAYASHI

IPC: C22C18/04 ,  C23C30/00

CPC classification number: C22C18/04 ,  C23C30/005

Abstract: A plated steel sheet comprises a plated layer on a surface of a steel sheet, in which in the plated layer, the total amount ΣA of Sn, Bi, and In is less than 0.75%, the total amount ΣB of Ca, Y, La, and Ce is 0.03 to 0.60%, the total amount ΣC of Cr, Ti, Ni, Co, V, Nb, Cu, and Mn is 0 to 1.00%, Sn≤Si, and 20.0≤Mg/Si are satisfied, and in an X-ray diffraction pattern of a surface of the plated layer, an X-ray diffraction peak of Al2.15Zn1.85Ca, an X-ray diffraction peak of CaZn2, and an X-ray diffraction peak of η′-MgZn2 satisfy a predetermined relationship.

公开(公告)号：US12071691B2

公开(公告)日：2024-08-27

申请号：US18250774

申请日：2021-12-24

Applicant: NIPPON STEEL CORPORATION

Inventor： Takuya Mitsunobu ,  Takehiro Takahashi ,  Hiroshi Takebayashi

IPC: C23C2/06 ,  B32B15/01 ,  C21D1/74 ,  C21D6/00 ,  C21D8/02 ,  C21D9/46 ,  C22C18/04 ,  C22C38/02 ,  C22C38/04 ,  C23C2/40

CPC classification number: C23C2/06 ,  B32B15/013 ,  C21D1/74 ,  C21D6/005 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0236 ,  C21D8/0278 ,  C21D9/46 ,  C22C18/04 ,  C22C38/02 ,  C22C38/04 ,  C23C2/40

Abstract: A plated steel sheet for automobile structural members has a steel sheet, a plating layer formed on at least a part of a surface of the steel sheet, and an oxide layer formed on at least a part of a surface of the plating layer, the plating layer has a predetermined chemical composition, and when measurement by XPS is performed at a position 5.0 nm below a surface of the oxide layer in a thickness direction, IMg/IMgOx, which is the ratio of a maximum detected intensity of Mg to a maximum detected intensity of an oxide or hydroxide of Mg, is 0.00 or greater and 1.20 or less.

公开(公告)号：US11992867B2

公开(公告)日：2024-05-28

申请号：US17802584

申请日：2020-02-27

Applicant: NIPPON STEEL CORPORATION

Inventor： Takuya Mitsunobu ,  Takehiro Takahashi ,  Jun Maki

IPC: B21D22/02 ,  B32B15/01 ,  C22C18/04 ,  C23C2/06 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28

CPC classification number: B21D22/022 ,  B32B15/013 ,  C22C18/04 ,  C23C2/06 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  Y10T428/12757

Abstract: A hot stamped body comprising a steel base material and an Al—Zn—Mg-based plating layer formed on a surface of the steel base material, wherein the plating layer has a predetermined chemical composition, the plating layer comprises an interfacial layer positioned at an interface with the steel base material and containing Fe and Al and a main layer positioned on the interfacial layer, the main layer comprises, by area ratio, 10.0 to 90.0% of an Mg—Zn containing phase, 5.0 to less than 30.0% of an Fe—Al containing phase, and 2.0 to 25.0% of an Al—Si containing oxide phase, the Mg—Zn containing phase comprises at least one selected from the group consisting of an MgZn phase, Mg2Zn3 phase, and MgZn2 phase, and the Fe—Al containing phase comprises at least one of an FeAl phase and Fe—Al—Zn phase.

公开(公告)号：US11987863B2

公开(公告)日：2024-05-21

申请号：US18040903

申请日：2021-08-19

Applicant: NIPPON STEEL CORPORATION

Inventor： Takuya Mitsunobu ,  Takehiro Takahashi ,  Hiroshi Takebayashi

IPC: C22C18/04 ,  B32B15/01 ,  B32B15/04 ,  B32B15/18 ,  C21D9/46 ,  C22C18/00 ,  C22C21/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/02 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/40 ,  C23C30/00

CPC classification number: C22C18/04 ,  B32B15/012 ,  B32B15/013 ,  B32B15/04 ,  B32B15/043 ,  B32B15/18 ,  C21D9/46 ,  C22C18/00 ,  C22C21/00 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/02 ,  C23C2/022 ,  C23C2/06 ,  C23C2/12 ,  C23C2/26 ,  C23C2/28 ,  C23C2/285 ,  C23C2/29 ,  C23C2/40 ,  C23C30/00 ,  C23C30/005 ,  Y10T428/1259 ,  Y10T428/12667 ,  Y10T428/12757 ,  Y10T428/12799 ,  Y10T428/12958 ,  Y10T428/12972 ,  Y10T428/2495 ,  Y10T428/24967 ,  Y10T428/265

Abstract: A plated steel sheet includes: a steel sheet; and a plating layer that is formed on at least a part of a surface of the steel sheet, in which a chemical composition of the plating layer includes, b mass %, Al: 6.00% to 35.00 %, Mg: 3.00% to 15.00%, La+Ce: 0.0001% to 0.5000% in total, and Zn, and in a surface of the plating layer, the area ratio of a lamellar structure in which an (Al—Zn) phase and a MgZn2 phase are arranged in layers is 10% to 95%, the lamellar spacing of the lamellar structure is 2.5 μm or less, and the area ratio of an (Al—Zn) dendrite is 10% or less.

公开(公告)号：US20240084422A1

公开(公告)日：2024-03-14

申请号：US18285460

申请日：2023-03-23

Applicant: NIPPON STEEL CORPORATION

Inventor： Takuya MITSUNOBU ,  Kohei TOKUDA ,  Hiroshi TAKEBAYASHI

IPC: C22C18/04 ,  B32B15/01 ,  C23C2/06

CPC classification number: C22C18/04 ,  B32B15/013 ,  C23C2/06

Abstract: The hot-dip plated steel material includes a steel material and a hot-dip plated layer disposed on a surface of the steel material, the hot-dip plated layer has a certain chemical composition, and the hot-dip plated layer has a diffraction intensity obtained from a result of X-ray diffraction measurement, the diffraction intensity satisfying a certain relationship.

公开(公告)号：US20240052471A1

公开(公告)日：2024-02-15

申请号：US18265370

申请日：2021-12-20

Applicant: POSCO Co., Ltd

Inventor： Tae-Chul Kim ,  Il-Ryoung Sohn ,  Bong-Hwan Yoo

IPC: C23C2/06 ,  C21D9/46 ,  C21D1/84 ,  C22C18/04 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D6/00 ,  B32B15/01 ,  C23C2/20 ,  C23C2/40

CPC classification number: C23C2/06 ,  C21D9/46 ,  C21D1/84 ,  C22C18/04 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/002 ,  C21D6/005 ,  C21D6/008 ,  B32B15/013 ,  C23C2/20 ,  C23C2/40

Abstract: The present invention relates to a plated steel sheet which can be used for automobiles, home appliances, building materials, etc. and a method for manufacturing same and, more particularly, to a zinc alloy plated steel sheet having excellent adhesion to an adhesive and a method for manufacturing same.

公开(公告)号：US20230323521A1

公开(公告)日：2023-10-12

申请号：US18249382

申请日：2021-09-29

Applicant: NIPPON STEEL CORPORATION

Inventor： Mamoru SAITO ,  Yasuto GOTO

IPC: C23C2/06 ,  C22C18/04 ,  C23C2/28

CPC classification number: C23C2/06 ,  C22C18/04 ,  C23C2/29

Abstract: A coated steel product including a base steel, and a coating layer containing a Zn—Al—Mg alloy layer disposed on a surface of the base steel, in which the coating layer has a predetermined chemical composition, the coated steel product including dendrite-shaped MgZn2 phase having a surface roughness Sa of 50 nm or less on a surface of the Zn—Al—Mg alloy layer, an area ratio of the dendrite-shaped MgZn2 phase having a surface roughness Sa of 50 nm or less being from 30% to 80% within a region of an observable field of view of 5 mm2, and among the dendrite-shaped MgZn2 phase having a surface roughness Sa of 50 nm or less, a number of dendrite-shaped MgZn2 phase having an area of 0.1 mm2 or more being from 5 to 100 within a region of an observable field of view of 25 mm2.