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:
Apr. 03, 2018

Filed:

Sep. 18, 2015
Applicant:

Ihi Corporation, Tokyo, JP;

Inventors:

Yasuhiro Aoki, Tokyo, JP;

Akihiro Sato, New York, NY (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 19/05 (2006.01); F01D 5/28 (2006.01); C22F 1/10 (2006.01); C30B 11/00 (2006.01); C30B 29/52 (2006.01);
U.S. Cl.
CPC ...
C22C 19/057 (2013.01); C22C 19/056 (2013.01); C22F 1/10 (2013.01); F01D 5/28 (2013.01); C30B 11/00 (2013.01); C30B 29/52 (2013.01); F05D 2220/30 (2013.01); F05D 2230/40 (2013.01); F05D 2300/131 (2013.01); F05D 2300/132 (2013.01); F05D 2300/133 (2013.01); F05D 2300/135 (2013.01); F05D 2300/175 (2013.01); F05D 2300/177 (2013.01); F05D 2300/607 (2013.01);
Abstract

The present invention provides a Ni-based single crystal superalloy which has the following composition by weight: 0.1 wt % or more and 9.9 wt % or less of Co, 5.1 wt % or more and 10.0 wt % or less of Cr, 1.0 wt % or more and 4.0 wt % or less of Mo, 8.1 wt % or more and 11.0 wt % or less of W, 4.0 wt % or more and 9.0 wt % or less of Ta, 5.2 wt % or more and 7.0 wt % or less of Al, 0.1 wt % or more and 2.0 wt % or less of Ti, 0.05 wt % or more and 0.3 wt % or less of Hf, 1.0 wt % or less of Nb and less than 3.0 wt % of Re with the remainder including Ni and unavoidable impurities. This Ni-based single crystal superalloy has a low Re content and also has excellent high-temperature strength, mainly creep strength.


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