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:
Feb. 24, 2015

Filed:

Nov. 09, 2011
Applicants:

Yuefeng Gu, Ibaraki, JP;

Tadaharu Yokokawa, Ibaraki, JP;

Toshiharu Kobayashi, Ibaraki, JP;

Toshio Osada, Ibaraki, JP;

Junzo Fujioka, Ibaraki, JP;

Hiroshi Harada, Ibaraki, JP;

Daisuke Nagahama, Saitama, JP;

Yusuke Kikuchi, Saitama, JP;

Inventors:

Yuefeng Gu, Ibaraki, JP;

Tadaharu Yokokawa, Ibaraki, JP;

Toshiharu Kobayashi, Ibaraki, JP;

Toshio Osada, Ibaraki, JP;

Junzo Fujioka, Ibaraki, JP;

Hiroshi Harada, Ibaraki, JP;

Daisuke Nagahama, Saitama, JP;

Yusuke Kikuchi, Saitama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 1/00 (2006.01); C22C 19/05 (2006.01); C22C 1/04 (2006.01); C22C 30/00 (2006.01);
U.S. Cl.
CPC ...
C22C 30/00 (2013.01); C22C 19/056 (2013.01); C22C 19/057 (2013.01); C22C 1/0433 (2013.01);
Abstract

There is provided a nickel alloy having an excellent creep strength as well as high-temperature oxidation resistance. The nickel alloy of the present invention comprises, by mass percent, Cr in a range of 11.5 to 11.9%, Co in a range of 25 to 29%, Mo in a range of 3.4 to 3.7%, W in a range of 1.9 to 2.1%, Ti in a range of 3.9 to 4.4%, Al in a range of 2.9 to 3.2%, C in a range of 0.02 to 0.03%, B in a range of 0.01 to 0.03%, Zr in a range of 0.04 to 0.06%, Ta in a range of 2.1 to 2.2%, Hf in a range of 0.3 to 0.4%, and Nb in a range of 0.5 to 0.8%, the balance being Ni and unavoidable impurities, and contains carbides and borides precipitating in crystal grains and at grain boundaries.


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