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:
Apr. 15, 1986
Filed:
Jan. 15, 1982
Kenneth Harris, Spring Lake, MI (US);
Gary L Erickson, Muskegon, MI (US);
Cannon-Muskegon Corporation, Muskegon, MI (US);
Abstract
The alloy is a nickel base, superalloy specifically intended for the making of castings which consist of a single crystal. The castings are intended for use under extreme conditions of high temperature and stress. The alloy, for the first time, achieves the desired characteristics of phase stability, high stress-rupture strength and resistance to oxidation while maintaining a sufficient temperature differential between gamma prime solvus and incipient melting temperatures, that it is practical to solution heat treat without unacceptable percentages of rejects due to failure either to completely solution the primary coarse gamma prime or to initiation of incipient melting. In a modified form the coated oxidation/corrosion resistance of the alloy is increased by the addition of a trace quantity of hafnium.