High-temperature creep-resistant material

US5503798A · kind A · utility

Assignees

• ABB PATENT GMBH · DE
• GKSS-Forschungszentrum Geesthacht GmbH · DE

Inventors

• Lorenz Singheiser · Heidelberg, DE
• Richard C. Wagner · Countryside, US
• Peter Beaven · Hofgeismar, DE
• Heinrich Mecking · Kürten, DE
• Jiansheng Wu · Shanghai, CN

Key dates

• Filing date: Apr 18, 1994
• Grant date: Apr 2, 1996
• Expiry date: Apr 18, 2014

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05C2201/043
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A multiphase, high-temperature material contains an intermetallic base alloy of the Ti.sub.3 Al type, which is intended especially for use in heat engines such as internal combustion engines, gas turbines and aircraft engines. The material contains from 44 to 73 atom % titanium, from 19 to 35 atom % aluminum, from 2 to 6 atom % silicon, and from 5 to 15 atom % niobium. The desired microstructure is attained by heat treating the alloy at between 800.degree. and 1100.degree. C.