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:
Nov. 21, 2023
Filed:
Mar. 13, 2020
Safran, Paris, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Universite Paris Est Creteil Val DE Marne, Creteil, FR;
Pierre Jean Sallot, Moissy-Cramayel, FR;
Clara Desgranges, Moissy-Cramayel, FR;
Anne-Laure Rouffie, Moissy-Cramayel, FR;
Jean-Philippe François Couzinie, Paris, FR;
Guy Dirras, St Brice Sous Forêt, FR;
Ivan Georges Guillot, Paris, FR;
Jean-Marc Eric Joubert, Paris, FR;
Mathilde Madeleine Louise Laurent, Antony, FR;
Loic Perriere, Châtenay Malabry, FR;
Thomas Philippe Joseph Rieger, Gentilly, FR;
SAFRAN, Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE PARIS EST CRETEIL VAL DE MARNE, Creteil, FR;
Abstract
A nickel-based superalloy includes, in atomic percentages, 13% to 21% chromium, 15% to 26% cobalt, 4% to 8% aluminum, 4.5% to 8% titanium, 8% to 18% iron, boron in an atomic percentage less than or equal to 0.5% or no boron, carbon in an atomic percentage less than or equal to 1% or no carbon, at least one additional element selected from molybdenum, tungsten, tantalum and niobium, a total atomic content of the at least one additional element being less than or equal to 1.5% or no such at least one additional element, the remainder being nickel and unavoidable impurities, with a sum of the atomic percentages of aluminum and titanium being comprised between 8.5% and 15%. The novel superalloy composition has a limited density and exhibiting, when hot, good mechanical properties as well as good resistance to oxidation and corrosion.