The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2020
Filed:
Dec. 22, 2017
Applicant:
Posco, Pohang-si, KR;
Inventors:
Heung-Yun Kim, Gwangyang-si, KR;
Young-Ha Kim, Gwangyang-si, KR;
Assignee:
POSCO, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 2/12 (2006.01); B32B 15/01 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 21/02 (2006.01); C22C 21/06 (2006.01); C22C 38/04 (2006.01); C23C 2/40 (2006.01); C23C 2/14 (2006.01);
U.S. Cl.
CPC ...
C23C 2/12 (2013.01); B32B 15/012 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0263 (2013.01); C21D 9/46 (2013.01); C22C 21/02 (2013.01); C22C 21/06 (2013.01); C22C 38/04 (2013.01); C23C 2/14 (2013.01); C23C 2/40 (2013.01); Y10T 428/12757 (2015.01);
Abstract
Provided is an aluminum-based alloy plate steel sheet, which comprises a base steel sheet, an interfacial alloy layer, and an aluminum-based plated layer comprising a Mg—Si-based alloy phase, and in which b/a is 1-5 when the area fraction of the Mg—Si-based alloy phase contained in the aluminum-based plated layer is a and the area fraction of the Mg—Si-based alloy phase contained in the region of the lower 20% in the thickness direction of the aluminum-based plated layer is b.