RatnerPrestia
Hot-pressed member
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.
JFE Steel Corporation
C C C Y C C C C Y Y C C C C C Y C Y B C C C C B Y Y Y Y Y B C C C C Y C C C C Y Y C B C C C C C B C C Y B Y B Y Y B B B C Y Y
C22C C22C C23C Y10T C22C C21D C25D C23C Y10T Y10T C22C C23C C22C C25D C21D Y10T C23C Y10T B32B C21D C21D C23C C22C B32B Y10T Y10T Y10T Y10T Y10T B21D C22C C23C C22C C23C Y10T C22C C23C C22C C22C Y10T Y10T C25D B32B C22C C21D C23C C22C C25D B32B C23C C21D Y10T B32B Y10T B21D Y10T Y10T B32B B21D B21D C23C Y10T Y10T
inventional inventional inventional additional inventional inventional inventional inventional additional additional inventional inventional inventional additional inventional additional inventional additional inventional inventional inventional inventional inventional inventional additional additional additional additional additional inventional inventional inventional inventional inventional additional inventional inventional inventional inventional additional additional inventional inventional inventional additional inventional inventional inventional inventional inventional additional additional inventional additional inventional additional additional inventional inventional inventional inventional additional additional
Hiroki Seiji Shinji Hiroyuki Tatsuya
Nakamaru Nakajima Ootsuka Masuoka Miyoshi