Invention Grant
- Patent Title: Hot-pressed member
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Application No.: US14680302Application Date: 2015-04-07
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Publication No.: US09963755B2Publication Date: 2018-05-08
- Inventor: Hiroki Nakamaru , Seiji Nakajima , Tatsuya Miyoshi , Hiroyuki Masuoka , Shinji Ootsuka
- Applicant: JFE STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: RatnerPrestia
- Priority: JP2009-247384 20091028; JP2010-102849 20100428; JP2010-218094 20100929
- Main IPC: C23C30/00
- IPC: C23C30/00 ; C23C28/00 ; C22C38/04 ; C22C38/02 ; C22C38/00 ; C22C38/34 ; C22C38/32 ; C22C38/28 ; C22C38/14 ; C22C38/60 ; C22C38/06 ; C22C38/38 ; B32B15/00 ; C21D8/02 ; C23C2/28 ; B32B15/01 ; B32B15/04 ; C23C2/06 ; B32B15/18 ; C22C18/00 ; C22C38/18 ; C23C10/28 ; C25D5/48 ; C25D5/50 ; C21D1/673 ; C23C2/26 ; C23C10/60 ; C23C26/00 ; C25D3/56 ; C21D8/04

Abstract:
A hot-pressed member includes a steel sheet, a Ni-diffusion region present in a surface layer of the steel sheet, and an intermetallic compound layer and a ZnO layer which are provided in order on the Ni-diffusion region, the intermetallic compound layer corresponding to a γ phase present in a phase equilibrium diagram of a Zn—Ni alloy, wherein a spontaneous immersion potential indicated in a 0.5 M NaCl aqueous air-saturated solution at 25° C.±5° C. is −600 to −360 mV based on a standard hydrogen electrode.
Public/Granted literature
- US20150211127A1 HOT-PRESSED MEMBER Public/Granted day:2015-07-30
Information query
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