Title:
HOT-PRESSED MEMBER, STEEL SHEET FOR HOT PRESSING, METHOD FOR PRODUCING HOT-PRESSED MEMBER, AND METHOD FOR PRODUCING STEEL SHEET FOR HOT PRESSING
Document Type and Number:
WIPO Patent Application WO/2023/176100
Kind Code:
A1
Abstract:
The present invention provides a hot-pressed member which has excellent corrosion resistance after coating and excellent corrosion resistance in a joined part. This hot-pressed member comprises a steel material, an Al-Fe intermetallic compound layer that is arranged on at least one surface of the steel material and has a thickness of 10-30 µm, and Mg-containing oxide particles that are arranged on the Al-Fe intermetallic compound layer; and the Mg-containing oxide particles have an average particle diameter of 5.0 µm or less and a number density of 1,000 per mm2 or more.
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Inventors:
SATO RINTA (JP)
MAKIMIZU YOICHI (JP)
NISHIIKE RYOTO (JP)
TANAKA MINORU (JP)
MAKIMIZU YOICHI (JP)
NISHIIKE RYOTO (JP)
TANAKA MINORU (JP)
Application Number:
PCT/JP2023/000108
Publication Date:
September 21, 2023
Filing Date:
January 05, 2023
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C23C2/12; B21D22/20
Domestic Patent References:
| WO2013089262A1 | 2013-06-20 | |||
| WO2018179395A1 | 2018-10-04 | |||
| WO2018181392A1 | 2018-10-04 |
Foreign References:
| JP2010168645A | 2010-08-05 | |||
| JP2017536472A | 2017-12-07 | |||
| JP2022513667A | 2022-02-09 | |||
| KR102365408B1 | 2022-02-21 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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