Title:
水素脆性に対する抵抗性に優れた熱間プレス成形部材及びその製造方法
Document Type and Number:
Japanese Patent JP7216358
Kind Code:
B2
Abstract:
The present invention pertains to a hot press forming member having excellent resistance to hydrogen embrittlement, and a method for manufacturing same. An aspect of the present invention provides a hot press forming member having excellent resistance to hydrogen embrittlement, the hot press forming member comprising a base steel plate and an alloy-plated layer formed on the surface of the base steel plate, wherein the alloy-plated layer contains pores such that pores having a size of 5 µm or less constitute 3-30% of the surface area of the alloy-plated layer as viewed in a cross-section taken in the thickness direction of the member.
Inventors:
Kim, Song-U
Oh, Jin-Kun
Kim, San-Hong
Han, San-Bin
Oh, Jin-Kun
Kim, San-Hong
Han, San-Bin
Application Number:
JP2021531411A
Publication Date:
February 01, 2023
Filing Date:
December 02, 2019
Export Citation:
Assignee:
POSCO Holdings Inc.
International Classes:
C23C2/28; C21D9/00; C22C38/00; C22C38/06; C22C38/38; C23C2/12
Domestic Patent References:
| JP11286766A | ||||
| JP2019506523A | ||||
| JP57173196A | ||||
| JP58224159A | ||||
| JP2004244704A | ||||
| JP6128713A | ||||
| JP2020509200A | ||||
| JP2005264188A | ||||
| JP2002194519A | ||||
| JP62199759A |
Foreign References:
| WO2013047836A1 | ||||
| WO2012137687A1 | ||||
| US4546051 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Yuko Hara
Masakazu Ito
Yuko Hara