Safran Aircraft Engines

Indian Institute of Science

Dipankar Banerjee

Jean-Michel Patrick Maurice Franchet

Vikas Kumar

Jean-Yves Guedou

Olu Emmanuel Femi

Sanjay Kashyap

Jean-Loup Bernard Victor Strudel

Kamanio Chattopadhyay

Laurent Germann

Tapash Nandy

Chandrasekhar Tiwary

Jean-Michel Patrick Franchet

Jean-Loup Bernard Strudel

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&#x2264;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.

Titanium-based intermetallic alloy

The present subject matter describes Ni&#x2014;Al&#x2014;Zr alloys, which include Ni as the major component, with the additions of 9-20% Al and 4-14% Zr by atomic percentage. In one embodiment, the present subject matter describes a group of alloy compositions in a Nickel-Aluminum-Zirconium (Ni&#x2014;Al&#x2014;Zr) system corresponding to a concentration range of about 9-20% Al and about 4-14% Zr by atomic percentages, and the balance being Ni. In other embodiment, the present subject matter includes at least one eutectic constituent including at least two of the intermetallic compounds or phases NiAl, NiAl, NiZr, NiZrand derivatives that are realized within the aforementioned composition group.

Nickel-aluminium-zirconium alloys

Growing community of inventors

Bengaluru, India

Dipankar Banerjee