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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 11285698 B1

PDFFull Text
Date of Patent:
Mar. 29, 2022

Filed:

Mar. 20, 2018

Hot-stamped body

Applicant:

Nippon Steel Corporation, Tokyo, JP;

Inventors:

Takuya Mitsunobu, Tokyo, JP;

Kohei Tokuda, Tokyo, JP;

Akihiro Sengoku, Tokyo, JP;

Kenichiro Matsumura, Tokyo, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael E La Villa

Int. Cl.
CPC ...
B32B 15/01 (2006.01); B32B 15/18 (2006.01); B32B 15/20 (2006.01); C22C 18/00 (2006.01); C22C 38/00 (2006.01); C22C 38/32 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/28 (2006.01); C23C 2/12 (2006.01); B21D 22/02 (2006.01); C23C 28/02 (2006.01); C23C 28/00 (2006.01); C22C 18/04 (2006.01); C22C 21/10 (2006.01); C22C 30/06 (2006.01); C23C 2/06 (2006.01); C23C 2/28 (2006.01); C23C 8/12 (2006.01); B21D 22/20 (2006.01); C22C 21/00 (2006.01); C22C 38/06 (2006.01); C23C 30/00 (2006.01); B32B 15/04 (2006.01); C21D 9/00 (2006.01); C21D 1/34 (2006.01); C21D 1/76 (2006.01); C21D 1/18 (2006.01); C21D 1/40 (2006.01); C21D 1/673 (2006.01); C21D 8/00 (2006.01);
U.S. Cl.
CPC ...
B32B 15/013 (2013.01); B21D 22/022 (2013.01); B21D 22/20 (2013.01); B32B 15/012 (2013.01); B32B 15/04 (2013.01); B32B 15/043 (2013.01); B32B 15/18 (2013.01); B32B 15/20 (2013.01); C22C 18/00 (2013.01); C22C 18/04 (2013.01); C22C 21/00 (2013.01); C22C 21/10 (2013.01); C22C 30/06 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C23C 2/06 (2013.01); C23C 2/12 (2013.01); C23C 2/28 (2013.01); C23C 8/12 (2013.01); C23C 28/02 (2013.01); C23C 28/023 (2013.01); C23C 28/025 (2013.01); C23C 28/32 (2013.01); C23C 28/321 (2013.01); C23C 28/322 (2013.01); C23C 28/3225 (2013.01); C23C 28/345 (2013.01); C23C 30/00 (2013.01); C23C 30/005 (2013.01); B32B 2311/12 (2013.01); B32B 2311/20 (2013.01); B32B 2311/22 (2013.01); B32B 2311/24 (2013.01); B32B 2311/30 (2013.01); C21D 1/18 (2013.01); C21D 1/34 (2013.01); C21D 1/40 (2013.01); C21D 1/673 (2013.01); C21D 1/76 (2013.01); C21D 8/005 (2013.01); C21D 9/0068 (2013.01); Y10T 428/1259 (2015.01); Y10T 428/1266 (2015.01); Y10T 428/1275 (2015.01); Y10T 428/12611 (2015.01); Y10T 428/12618 (2015.01); Y10T 428/12736 (2015.01); Y10T 428/12743 (2015.01); Y10T 428/12757 (2015.01); Y10T 428/12764 (2015.01); Y10T 428/12792 (2015.01); Y10T 428/12799 (2015.01); Y10T 428/12951 (2015.01); Y10T 428/12958 (2015.01); Y10T 428/12972 (2015.01); Y10T 428/12979 (2015.01); Y10T 428/2495 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/26 (2015.01); Y10T 428/263 (2015.01); Y10T 428/264 (2015.01); Y10T 428/265 (2015.01);
Abstract

There is provided a hot-stamped body including: a steel base metal; and a metallic layer formed on a surface of the steel base metal, wherein the metallic layer includes: an interface layer that contains, in mass %, Al: 30.0 to 36.0%, has a thickness of 100 nm to 15 μm, and is located in an interface between the metallic layer and the steel base metal; and a principal layer that includes coexisting Zn phases and insular FeAlphases, is located on the interface layer, and has a thickness of 1 μm to 40 μm. This hot-stamped body is excellent in fatigue properties, corrosion resistance, and chipping resistance.

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