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:
Jul. 30, 1985
Filed:
Feb. 01, 1984
Applicant:
Inventor:
Robert Singer, Baden, CH;
Assignee:
BBC Brown, Boveri & Company, Limited, Baden, CH;
Primary Examiner:
Int. Cl.
CPC ...
C22F / ;
U.S. Cl.
CPC ...
148 / ; 148 / ; 148405 ; 148426 ; 148427 ; 148428 ;
Abstract
A component possessing high resistance to corrosion and oxidation, composed of a dispersion-hardened superalloy having a high creep strength, comprises a coarse-grained core (1) which has high strength at high temperatures, and a fine-grained skin zone (2) which forms a case. The component is manufactured with the aid of a heat-treatment, or thermomechanical treatment, in a manner such that, starting from a fine-grained initial condition, the skin zone (2) is restrained from participating in the recrystallization which leads to the formation of coarse grains in the core (1).