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:
Sep. 29, 1998
Filed:
Jul. 30, 1996
Applicant:
Inventors:
Catherine Duquenne, Paris, FR;
Jean Charles Lautridou, Bondoufle, FR;
Michel Marty, Buc, FR;
Michele Soucail, Fontenay Aux Roses, FR;
Andre Walder, L'Hay Les Roses, FR;
Primary Examiner:
Int. Cl.
CPC ...
B22F / ; B22F / ; B22F / ; C22C / ;
U.S. Cl.
CPC ...
419 67 ; 75246 ; 148410 ; 148428 ; 148419 ; 148442 ; 420448 ; 420449 ; 420588 ;
Abstract
A nickel-based superalloy possessing good mechanical properties when hot regarding traction, creep and cracking resistance has a chemical composition which comprises, in percentages by weight: Co 14.5 to 15.5 ; Cr 12 to 15 ; Mo 2 to 4.5 : Al 2.5 to 4; Ti 4 to 6; Hf not more than 0.5 ; C 100 to 300 ppm; B 100 to 500 ppm; Zr 200 to 700 ppm; possibly W up to 4.5; and nickel as the remainder. Components made from these alloys have an excellent microstructural stability when operating at temperatures up to 800.degree. C.