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:
May. 29, 2012
Filed:
May. 08, 2009
Jun Ohsone, Saitama, JP;
Akira Mitsuhashi, Kitamoto, JP;
Takanori Matsui, Saitama, JP;
Yuji Ishiwari, Yokohama, JP;
Jun Ohsone, Saitama, JP;
Akira Mitsuhashi, Kitamoto, JP;
Takanori Matsui, Saitama, JP;
Yuji Ishiwari, Yokohama, JP;
MMC Superalloy Corporation, Saitama, JP;
Abstract
This ring-shaped disk for a gas turbine includes a ring-shaped disk material consisting of a Ni-based alloy, wherein the Ni-based alloy has a composition that includes, in terms of percent by mass, Ni: 50.00 to 55.00%, Cr: 17.0 to 21.0%, Nb: 4.75 to 5.60%, Mo: 2.8 to 3.3%, Ti: 0.65 to 1.15%, Al: 0.20 to 0.80%, and C: 0.01 to 0.08%, with the balance being Fe and inevitable impurities, and has a microstructure in which δ phase particles are distributed in a matrix thereof, and wherein, in the microstructure, flattened δ phase particles of which maximum length directions are oriented at angles within a range of 60 to 120° with respect to a radial direction of the ring-shaped disk material are present in an amount of 60% or more of a total amount of the δ phase particles distributed in the matrix.