Niobium or tantalum based high specific strength inter metallic compounds and alloys

US5486242A · kind A · utility

Assignee

• OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES · FR

Inventors

• Shigehisa Naka · Jouy-en-Josas, FR
• Tasadduq Khan · Vélizy-Villacoublay, FR
• Andre Walder · L'Haÿ-les-Roses, FR
• Michel Marty · Buc, FR
• Christophe Delaunay · Paris, FR
• Pierre Thevenin · Évry, FR

Key dates

• Filing date: May 15, 1995
• Grant date: Jan 23, 1996
• Expiry date: May 15, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C30/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Tantalum-based and niobium-based alloys made up entirely of a crystalline medium exhibiting a substantially continuous centered cubic structure, comprising an intermetallic compound of formula Ti.sub.2 AlMo, and having the following compositions on an atomic basis: ______________________________________ Ta + Cr 20 to 35% Cr 0 to 5% Ti 20 to 40% Al 8 to 20% Mo 8 to 20%, ______________________________________ wherein the concentration of Ta is less than 30%; and ______________________________________ Nb + Cr 20 to 60% Cr 0 to 5% Ti 20 to 40% Al 8 to 20% Mo 8 to 20%. ______________________________________ .