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.

Date of Patent:
Nov. 15, 2016

Filed:

Dec. 10, 2012
Applicants:

Jfe Steel Corporation, Tokyo, JP;

Tokyo Institute of Technology, Tokyo, JP;

Inventors:

Tooru Tsuru, Tokyo, JP;

Toshio Maruyama, Tokyo, JP;

Tatsuo Sato, Tokyo, JP;

Masao Takeyama, Tokyo, JP;

Masahiro Yoshida, Tokyo, JP;

Sakae Fujita, Tokyo, JP;

Sachiko Suzuki, Tokyo, JP;

Satoru Ando, Tokyo, JP;

Hiroki Nakamaru, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 15/01 (2006.01); C22C 21/00 (2006.01); C23C 2/12 (2006.01); C22C 21/06 (2006.01); C23C 2/28 (2006.01); C21D 8/04 (2006.01); C21D 1/673 (2006.01);
U.S. Cl.
CPC ...
C23C 2/12 (2013.01); C21D 8/0473 (2013.01); C21D 8/0478 (2013.01); C22C 21/06 (2013.01); C23C 2/28 (2013.01); C21D 1/673 (2013.01); C21D 2211/004 (2013.01); Y10T 428/12757 (2015.01);
Abstract

An aluminum or aluminum alloy-coated steel material includes base steel; and a coating layer formed on a surface of the base steel and containing by mass % Mg: 6% to 10%, Si: 3% to 7%, Fe: 0.2% to 2%, Mn: 0.02% to 2%, and the balance as Al and incidental impurities, wherein the coating layer has pseudoternary eutectic microstructures of αAl—MgSi—(Al—Fe—Si—Mn) and an area ratio of the pseudoternary eutectic microstructures in the coating layer is at least 30%.


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