Superalloy compositions with a nickel base

US5104614A · kind A · utility

Assignees

• Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A · FR
• Association Pour La Recherche Developpement Des Methodes Et Processus Industriels · FR
• Tecphy · FR
• OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES · FR

Inventors

• Christian A. B. Ducrocq · Taverny, FR
• Didier P. A. Lestrat · Ris-Orangis, FR
• Bernard Paintendre · La Celle-Saint-Cloud, FR
• James H. Davidson · Terre Haute, US
• Michel Marty · Buc, FR
• Andre Walder · L'Haÿ-les-Roses, FR

Key dates

• Filing date: Jun 3, 1986
• Grant date: Apr 14, 1992
• Expiry date: Jun 3, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C19/056
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Superalloy with a nickel base matrix having good mechanical properties when ot in respect of tensile strength, creep resistance, low cycle fatigue and resistance to crack-propagation of which the composition in percentages by weight is as follows: Cr 11 to 13; Co 8 to 17; Mo 6 to 8; Nb less than or equal to 1.5; Ti 4 to 5; Al 4 to 5; Hf less than or equal to 1; C, B, Zr each less than or equal to 500 ppm; Ni remainder to 100. The alloy can be manufactured advantageously by powder metallurgy techniques and used in the manufacture of turbo machine disks.