This report is a short summary of the extensive literature on titanium-alloy physical metallurgy. It covers alloying elements and alloy types, and describes the general effects of interstitials. The mechanical properties of annealed alloys and the dependence of properties on structure are described. The second half of the re¬port is devoted to heat treatment and thermal stability of alpha-beta and beta alloys. Finally, a short section on future trends in alloy development is presented.
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