公开(公告)号：US20230193425A1

公开(公告)日：2023-06-22

申请号：US18014466

申请日：2021-07-09

申请人： NIPPON STEEL CORPORATION

发明人： Kohei TOKUDA ,  Takuya MITSUNOBU ,  Mamoru SAITO ,  Yuto FUKUDA ,  Yasuto GOTO ,  Hidetoshi SHINDO ,  Fumiaki NAKAMURA ,  Koji KAWANISHI ,  Ryohei MIMURA

IPC分类号： C22C18/04

CPC分类号： C22C18/04

摘要： A plated steel including a plated layer on a surface of a steel, in which Expression 1 of 0≤Cr+Ti+Ni+Co+V+Nb+Cu+Mn 0.25 and Expression 2 of 0≤Sr+Sb+Pb+B+Li+Zr+Mo+W+Ag+P≤0.50 are satisfied, and Expression 3 of I(MgZn2 (41.31°))/IΣ(MgZn2)≤0.265 and Expression 6 of 0.150≤{I(MgZn2 (20.79°))+I(MgZn2 (42.24°))}/IΣ(MgZn2) are further satisfied in an X-ray diffraction pattern of a surface of the plated layer measured using Cu-Kα rays under a condition that an X-ray output is 40 kV and 150 mA.

公开(公告)号：US20240336996A1

公开(公告)日：2024-10-10

申请号：US18703998

申请日：2022-08-16

申请人： NIPPON STEEL CORPORATION

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

IPC分类号： C22C18/04 ,  C23C30/00

CPC分类号： C22C18/04 ,  C23C30/005

摘要： 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：US20240043980A1

公开(公告)日：2024-02-08

申请号：US18271990

申请日：2021-11-30

申请人： NIPPON STEEL CORPORATION

发明人： Kohei TOKUDA ,  Mamoru SAITO ,  Takuya MITSUNOBU ,  Tetsuya TOBA ,  Yasuto GOTO ,  Atsushi MORISHITA ,  Yasuaki KAWAMURA ,  Fumiaki NAKAMURA ,  Koji KAWANISHI

IPC分类号： C23C2/06

CPC分类号： C23C2/06

摘要： A plated steel material having a plating layer having an average chemical composition containing, in mass %, Zn: more than 50.00%, Al: more than 15.0% and less than 30.0%, Mg: more than 5.0% and less than 15.0%, and Si: 0.25% or more and less than 3.50%, and impurities, and wherein a total amount (ΣA) of at least one selected from the group consisting of Sn, Bi and In is less than 1.00%, a total amount (ΣB) of at least one selected from the group consisting of Ca, Y, La, Ce and Sr is 0.02% or more and less than 0.60%, 2.0≤SMg/Si