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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 11492685 B1

PDFFull Text
Date of Patent:
Nov. 08, 2022

Filed:

Aug. 09, 2018

Alloy member, process for producing said alloy member, and product including said alloy member

Applicant:

Hitachi Metals, Ltd., Tokyo, JP;

Inventors:

Tadashi Fujieda, Tokyo, JP;

Hiroshi Shiratori, Tokyo, JP;

Kousuke Kuwabara, Tokyo, JP;

Atsuhiko Onuma, Tokyo, JP;

Assignee:

HITACHI METALS, LTD., Tokyo, JP;

Attorney:

Rothwell, Figg, Ernst & Manbeck, P.C.

Primary Examiner:

Anthony J Zimmer

Assistant Examiner:

Sean P O'Keefe

Int. Cl.
CPC ...
C22C 30/00 (2006.01); C22C 19/07 (2006.01); B22F 9/08 (2006.01); B22F 3/105 (2006.01); C22C 1/04 (2006.01); B22F 3/16 (2006.01); B33Y 70/00 (2020.01); B22F 5/08 (2006.01); C22C 33/02 (2006.01); B22F 1/00 (2022.01); B33Y 80/00 (2015.01);
U.S. Cl.
CPC ...
C22C 30/00 (2013.01); B22F 1/00 (2013.01); B22F 3/105 (2013.01); B22F 3/16 (2013.01); B22F 5/08 (2013.01); B22F 9/08 (2013.01); C22C 1/04 (2013.01); C22C 19/07 (2013.01); C22C 33/02 (2013.01); B22F 2009/0848 (2013.01); B22F 2301/15 (2013.01); B22F 2301/205 (2013.01); B22F 2301/35 (2013.01); B22F 2998/10 (2013.01); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12);
Abstract

Provided are: an alloy member that is excellent in homogeneity of both the alloy composition and microstructure and excellent in shape controllability and includes a high entropy alloy having high mechanical properties and high corrosion resistance, a process for producing the same, and a product including the alloy member. In the present invention, the alloy member having a chemical composition comprising elements of Co, Cr, Fe, Ni, and Ti each in an amount within a range of 5 atomic % or more and 35 atomic % or less and Mo in an amount within a range of more than 0 atomic % and 8 atomic % or less, the reminder consisting of unavoidable impurities, wherein ultrafine grains having an average grain diameter of 100 nm or less are dispersed and precipitated in a parent phase crystal.

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