Titanium aluminide which can be used at high temperature

US6176949A · kind A · utility

Assignee

• ONERA (OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES) · FR

Inventors

• Marc S. Thomas · Le Plessis-Robinson, FR
• Michel Marty · Buc, FR
• Shigehisa Naka · Jouy-en-Josas, FR

Key dates

• Filing date: Mar 4, 1998
• Grant date: Jan 23, 2001
• Expiry date: Mar 4, 2018

Classification

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

Abstract

Alloy of the Ti.sub.2 AlX type composed at least essentially of the elements Ti, Al, Nb, Ta and Mo and in which the relative amounts as atoms of said elements and of silicon are substantially within the following intervals: Al: 20 to 25% Nb: 10 to 15% Ta: 1.4 to 5% Mo: 2 to 4% Ti: remainder to 100%. This alloy exhibits properties superior to those of the known titanium alloys.