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:
Jan. 06, 2009
Filed:
Mar. 27, 2003
Toshiharu Kobayashi, Ibaraki, JP;
Yutaka Koizumi, Ibaraki, JP;
Tadaharu Yokokawa, Ibaraki, JP;
Hiroshi Harada, Ibaraki, JP;
Yasuhiro Aoki, Tokyo, JP;
Shouju Masaki, Tokyo, JP;
Toshiharu Kobayashi, Ibaraki, JP;
Yutaka Koizumi, Ibaraki, JP;
Tadaharu Yokokawa, Ibaraki, JP;
Hiroshi Harada, Ibaraki, JP;
Yasuhiro Aoki, Tokyo, JP;
Shouju Masaki, Tokyo, JP;
National Institute for Materials Science, Ibaraki, JP;
Ishikawajima-Harima Heavy Industries Co., Ltd., Tokyo, JP;
Abstract
A Ni-base directionally solidified superalloy and a Ni-base single-crystal superalloy, which have superior creep strength at a high temperature, consists essentially of from 5.0 percent by weight to 7.0 percent by weight of Al, from 4.0 percent by weight to 16.0 percent by weight of Ta+Nb+Ti, from 1.0 percent by weight to 4.5 percent by weight of Mo, from 4.0 percent by weight to 8.0 percent by weight of W, from 3.0 percent by weight to 8.0 percent by weight of Re, 2.0 percent by weight or less of Hf, 10.0 percent by weight or less of Cr, 15.0 percent by weight or less of Co, from 1.0 percent by weight to 4.0 percent by weight of Ru, 0.2 percent by weight or less of C, 0.03 percent by weight or less of B, and Ni and inescapable impurities as a balance. The superalloys can be used for a turbine blade, a turbine vane and the like of a jet engine, an industrial gas turbine and the like.