Niobium and titanium based alloys resistant to oxidation at high temperatures

US5284618A · kind A · utility

Assignees

• Association Pour La Recherche Developpement Des Methodes Et Processus Industriels · FR
• Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A · FR

Inventors

• Michel Allouard · Épinay-sur-Orge, FR
• Yves C. Bienvenu · Évry, FR
• Christophe Delaunay · Paris, FR
• Christian A. B. Ducrocq · Taverny, FR
• Gerard Lemaitre · Colombes, FR
• Michel Marty · Buc, FR
• Andre Walder · L'Haÿ-les-Roses, FR

Key dates

• Filing date: Mar 20, 1992
• Grant date: Feb 8, 1994
• Expiry date: Mar 20, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C27/02
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A niobium and titanium based alloy having a density less than 6.5 and possessing a high resistance to oxidation at high temperatures in the region of 900.degree. C. has a chemical composition comprising, in atomic percentages: PA1 more than 24% Nb PA1 from 30 to 48% Ti PA1 from 21 to 38% Al and possibly up to 8% of at least one of Cr, Mo, V and Zr.