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. 03, 1991
Filed:
Aug. 14, 1989
Applicant:
Inventors:
Kenneth Harris, Spring Lake, MI (US);
Gary L Erickson, Muskegon, MI (US);
Assignee:
Cannon-Muskegon Corporation, Muskegon, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ; C22F / ;
U.S. Cl.
CPC ...
420448 ; 148404 ; 148410 ; 148428 ;
Abstract
A nickel base superalloy for columnar grain, directional solidification which contains Re for strength and creep resistance, and substantially eliminates the use of Zr and minimizes Si to prevent DS grain boundary cracking. The creep- and stress-rupture properties, which approach nickel base superalloy single crystal performance, are achieved without the use of high temperature gamma prime solution treatment.