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:
Dec. 09, 2014
Filed:
Feb. 18, 2010
Shinya Imano, Hitachi, JP;
Jun Sato, Hitachi, JP;
Shinya Imano, Hitachi, JP;
Jun Sato, Hitachi, JP;
Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;
Abstract
Disclosed are a high-strength Ni-base alloy, a method of producing the Ni-base alloy, and a method of recovering a member made of a degraded Ni-base alloy. It contains not more than 0.1 wt % C, not more than 50 wt % Fe, not more than 30 wt % Cr, Ti, and at least one of Nb and Al. It has been strengthened by precipitates of a γ' phase (NiAl) and/or a γ″ phase (NiNb). It contains also a η phase (NiTi) which is thermodynamically stable in a temperature range of 800° C. to 900° C. When observed a cross-section of the Ni-base alloy, a plurality of nodes exist along each segment connecting two meeting points each of which point is defined by adjacent three crystal grains, and precipitates of the γ′ phase and/or the γ″ phase in each of crystal grains of the Ni-base alloy have an average particle size of not more than 100 nm.