US 12,344,908 B2
Hot stamped body and method for producing same and Al-plated steel sheet
Michiko Konno, Tokyo (JP); Jun Maki, Tokyo (JP); Shinichi Yamaguchi, Tokyo (JP); and Soshi Fujita, Tokyo (JP)
Assigned to NIPPON STEEL CORPORATION, Tokyo (JP)
Appl. No. 17/914,389
Filed by NIPPON STEEL CORPORATION, Tokyo (JP)
PCT Filed May 18, 2020, PCT No. PCT/JP2020/019682
§ 371(c)(1), (2) Date Sep. 26, 2022,
PCT Pub. No. WO2021/234790, PCT Pub. Date Nov. 25, 2021.
Prior Publication US 2023/0116894 A1, Apr. 13, 2023
Int. Cl. C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01); C23C 2/26 (2006.01); C23C 28/00 (2006.01)
CPC C21D 8/0252 (2013.01) [C21D 9/46 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/50 (2013.01); C22C 38/54 (2013.01); C23C 2/26 (2013.01); C23C 28/32 (2013.01); C23C 28/345 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A hot stamped body comprising
a steel base material,
an Al-plating layer formed on at least one surface of the steel base material,
a coating formed on the Al-plating layer and containing ZnO particles and CeO2 particles having an average particle size smaller than an average particle size of the ZnO particles, and
a Zn- and Al-containing complex oxide layer formed between the Al-plating layer and the coating.