Invention Grant
- Patent Title: Hot-pressed member
- Patent Title (中): 热压成员
-
Application No.: US13504755Application Date: 2010-10-28
-
Publication No.: US09040166B2Publication Date: 2015-05-26
- Inventor: Hiroki Nakamaru , Seiji Nakajima , Tatsuya Miyoshi , Hiroyuki Masuoka , Shinji Ootsuka
- Applicant: Hiroki Nakamaru , Seiji Nakajima , Tatsuya Miyoshi , Hiroyuki Masuoka , Shinji Ootsuka
- 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
- International Application: PCT/JP2010/069643 WO 20101028
- International Announcement: WO2011/052797 WO 20110505
- Main IPC: B32B15/04
- IPC: B32B15/04 ; B32B15/18 ; C21D8/02 ; C23C2/28 ; B32B15/01 ; C22C18/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/18 ; C22C38/32 ; C22C38/60 ; C23C10/28 ; C25D5/48 ; C25D5/50 ; C21D1/673 ; C23C2/26 ; C23C10/60 ; C23C26/00 ; C23C28/00 ; B21D31/00 ; 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
- US08663816B2 Hot-pressed member Public/Granted day:2014-03-04
Information query