The Development of Heat-Resistant Titanium Alloys.
Abstract
A classification for heat resistant titanium alloys was developed and possible new approaches for synthesizing new high temperature alloys were elucidated. X-Ray diffraction techniques were used to determine the strain in the alpha-phase of Ti-Al-Ga alloys associated with the alpha sub 2-phase caused by the addition of Al and/or Ga. The maximum values of strains were 0.16%, 0.10% and 0.088% in Ti80Al10Ga10, Ti88Al6Ga6 and Ti84Al8Ga8 alloys, respectively, where composition is given in atomic percent. An attempt was made to determine the phase boundary between alpha and (alpha + alpha sub 2) in the Ti-Al-Ga ternary system. The thermodynamic properties of titanium-aluminum, titanium-gallium, titanium-tin and titanium-aluminum-gallium were investigated. Thermodynamic activity measurements and binary interaction parameters were obtained using a high temperature Knudsen cell coupled with a time-of-flight mass spectrometer. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1973
- Accession Number
- AD0778462
Entities
People
- Michael Hoch
- Naresh C. Birla
- S. A. Cole
Organizations
- University of Cincinnati