Titanium-based intermetallic alloys

US6132526A · kind A · utility

Assignees

• Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A · FR
• Chief Controller Research and Development Defence Research and Development Organisation Ministry of Defence Govt of India · IN
• Association Pour La Recherche Developpement Des Methodes Et Processus Industriels · FR

Inventors

• Thierry Eric Carisey · Bellac, FR
• Dipankar Banerjee · Bengaluru, IN
• Jean-Michel Patrick Maurice Franchet · Paris, FR
• Ashok Kumar Gogia · Hyderabad, IN
• Alain Lasalmonie · L'Haÿ-les-Roses, FR
• Tapash Nandy · Hyderabad, IN
• Jean-Loup Bernard Victor Strudel · Étampes, FR

Key dates

• Filing date: Dec 17, 1998
• Grant date: Oct 17, 2000
• Expiry date: Dec 17, 2018

Classification

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

Abstract

A titanium-based intermetallic alloy having a high yield stress, a high creep resistance and sufficient ductility at ambient temperature has the following chemical composition as measured in atomic percentages: PA1 Al, from 16 to 26; Nb, from 18 to 28; Mo, from 0 to 2; Si, from 0 to 0.8; Ta, from 0 to 2; Zr, from 0 to 2; and Ti as the balance to 100; with the condition that Mo+Si+Zr+Ta>0.4%. Production, working and heat-treatment ranges adapted to the intended use of the material are also defined.