Titanium-based intermetallic alloy

US10119180B2 · kind B2 · utility

Assignee

• SAFRAN AIRCRAFT ENGINES · FR

Inventors

• Jean-Yves Guedou · Moissy-Cramayel, FR
• Jean-Michel Patrick Maurice Franchet · Paris, FR
• Jean-Loup Bernard Victor Strudel · Étampes, FR
• Laurent Germann · Pontarlier, FR
• Dipankar Banerjee · Bengaluru, IN
• Vikas Kumar · Pune, IN
• Tapash Nandy · Hyderabad, IN

Key dates

• Filing date: Dec 14, 2015
• Grant date: Nov 6, 2018
• Expiry date: Dec 14, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22F1/183
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A titanium-based intermetallic alloy includes, in atomic percent, 16% to 26% Al, 18% to 28% Nb, 0% to 3% of a metal M selected from Mo, W, Hf, and V, 0.1% to 2% of Si, 0% to 2% of Ta, 1% to 4% of Zr, with the condition Fe+Ni≤400 ppm, the balance being Ti, the alloy also presenting an Al/Nb ratio in atomic percent lying in the range 1.05 to 1.15.