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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.:

US 11725259 B1

PDFFull Text
Date of Patent:
Aug. 15, 2023

Filed:

Apr. 16, 2020

Plated steel sheet

Applicant:

Nippon Steel Corporation, Tokyo, JP;

Inventors:

Takuya Mitsunobu, Tokyo, JP;

Jun Maki, Tokyo, JP;

Hiroshi Takebayashi, Tokyo, JP;

Takehiro Takahashi, Tokyo, JP;

Kohei Tokuda, Tokyo, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
C22C 18/04 (2006.01); C23C 2/28 (2006.01); C23C 2/06 (2006.01); C23C 2/40 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); B32B 15/01 (2006.01); C23C 2/12 (2006.01); C22C 18/00 (2006.01); C23C 2/02 (2006.01); C23C 2/26 (2006.01); C23C 28/02 (2006.01); C23C 30/00 (2006.01); C22C 21/00 (2006.01); B32B 15/04 (2006.01); C23C 28/00 (2006.01); C21D 9/46 (2006.01); B32B 15/18 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01);
U.S. Cl.
CPC ...
C22C 18/04 (2013.01); B32B 15/012 (2013.01); B32B 15/013 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); C21D 9/46 (2013.01); C22C 18/00 (2013.01); C22C 21/00 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C23C 2/02 (2013.01); C23C 2/06 (2013.01); C23C 2/12 (2013.01); C23C 2/26 (2013.01); C23C 2/28 (2013.01); C23C 2/285 (2013.01); C23C 2/40 (2013.01); C23C 28/02 (2013.01); C23C 28/023 (2013.01); C23C 28/025 (2013.01); C23C 28/3225 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); C22C 38/00 (2013.01); C22C 38/06 (2013.01); Y10T 428/12757 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12958 (2015.01); Y10T 428/12972 (2015.01);
Abstract

A plated steel sheet having excellent chemical convertibility includes: a steel; and a plating layer that is provided on a surface of the steel, in which the plating layer includes, by mass %, Al: 5.00% to 35.00%, Mg: 2.50% to 13.00%, Fe: 5.00% to 35.00%, Si: 0% to 2.00%, Ca: 0.03% to 2.00%, and a remainder consisting of Zn and impurities, and in a surface of the plating layer, the area fraction of a Fe—Al phase is 0% to 30%, the area fraction of a rod-like lamellar structure of Zn and MgZnis 5% to 90%, the area fraction of a massive MgZnphase is 10% to 70%, and the area fraction of a remainder is 10% or less.

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