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:
Oct. 08, 2013
Filed:
Feb. 25, 2008
Kiyohito Ishida, Sendai, JP;
Ryosuke Kainuma, Natori, JP;
Katunari Oikawa, Sendai, JP;
Ikuo Ohnuma, Sendai, JP;
Jun Sato, Sendai, JP;
Kiyohito Ishida, Sendai, JP;
Ryosuke Kainuma, Natori, JP;
Katunari Oikawa, Sendai, JP;
Ikuo Ohnuma, Sendai, JP;
Jun Sato, Sendai, JP;
Japan Science and Technology Agency, Kawaguchi-shi, JP;
Abstract
A Co-base alloy which has a basic composition including, in terms of mass proportion, 0.1%-10% Al, 3.0-45% W, and Co as the remainder and has an intermetallic compound of the Lltype [Co(Al,W)] dispersed and precipitated therein. Part of the Co may be replaced with Ni, Ir, Fe, Cr, Re, or Ru, while part of the Al and W may be replaced with Ni, Ti, Nb, Zr, V, Ta or Hf. The intermetallic compound [Co(Al, W)] has a high melting point, and this compound and the matrix are mismatched little with respect to lattice constant. Thus, the cobalt-base alloy can have high-temperature strength equal to that of nickel-base alloys and excellent structure stability.