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.:
Date of Patent:
Nov. 22, 2005
Filed:
Jul. 26, 2004
Yutaka Koizumi, Ryugasaki, JP;
Toshiharu Kobayashi, Ryugasaki, JP;
Tadaharu Yokokawa, Tsukuba, JP;
Hiroshi Harada, Tsukuba, JP;
Yasuhiro Aoki, Tokyo, JP;
Mikiya Arai, Tokyo, JP;
Shoju Masaki, Tokyo, JP;
Ryoji Kakiuchi, Tokyo, JP;
Kazuyoshi Chikugo, Kawasaki, JP;
Yutaka Koizumi, Ryugasaki, JP;
Toshiharu Kobayashi, Ryugasaki, JP;
Tadaharu Yokokawa, Tsukuba, JP;
Hiroshi Harada, Tsukuba, JP;
Yasuhiro Aoki, Tokyo, JP;
Mikiya Arai, Tokyo, JP;
Shoju Masaki, Tokyo, JP;
Ryoji Kakiuchi, Tokyo, JP;
Kazuyoshi Chikugo, Kawasaki, JP;
National Institute for Materials Science, Ibaraki-Ken, JP;
Ishikawajima-Harima Heavy Industries Co., Ltd., Tokyo, JP;
Abstract
A Ni-based single crystal super alloy capable of improving strength by preventing precipitation of a TCP phase at high temperatures may be obtained by a Ni-based single crystal super alloy having a composition consisting of 5.0-7.0 wt % Al, 4.0-8.0 wt % Ta, 2.9-4.5 wt % Mo, 4.0-8.0 wt % W, 3.0-6.0 wt % Re, 0.01-0.50 wt % Hf, 2.0-5.0 wt % Cr, 0.1-15.0 wt % Co and 1.0-4.0 wt % Ru in terms of its weight ratio, with the remainder consisting of Ni and unavoidable impurities. Preferably, the composition of Co in the Ni-based single crystal super alloy is limited to 0.1-9.5 wt %.