Accession Number : AD0770343

Title :   Mechanical Properties and High-Temperature Stability of Ti-Mo-Al Alloys.

Descriptive Note : Technical rept. 1 Apr 72-30 Jun 73,

Corporate Author : RUTGERS - THE STATE UNIV NEW BRUNSWICK N J MATERIALS RESEARCH LAB

Personal Author(s) : Hamajima,T. ; Hida,M. ; Weissmann,S.

Report Date : SEP 1973

Pagination or Media Count : 23

Abstract : The phase diagram of the isopleth section of the TI-7 at % Mo-Al system has been improved and expanded to include alloys up to 25 at % aluminum. The mechanical and thermal stability of alloys aged in the two-phase region, beta + Ti3Al, and in the three-phase region, beta + alpha + Ti3,Al, were correlated to the microstructures. Considerable increases in high-temperature strength and ductility, as well as high-temperature stability, were achieved in a Ti-7 at % Mo-16 at % Al alloy by step-aging. (Modified author abstract)

Descriptors :   *Titanium alloys, Mechanical properties, High temperature, Phase transformations, Aluminum alloys, Molybdenum alloys, Microstructure, Intermetallic compounds, Titanium compounds, Aluminum compounds, Aging(Materials), Yield strength, Ductility, Elongation

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE