This is the final engineering report for a Naval Air Systems Command sponsored program to evaluate the forgeability characteristics of CORONA-5, a new titanium alloy with a nominal composition of Ti-4.5Al-5Mo-1.5Cr. The goal of this contract was to define forging and final heat treat parameters which would produce optimum or near-optimum toughness over the strength range of 130-140 ksi (about 900-965 MPa), UTS. During this program, a total of six different final heat treat cycles were employed to provide strength variations over the goal range. The results of these evaluations indicated that the best combinations of strength and toughness were produced by forging the material above its beta transus or at temperatures high in the alpha plus beta region.
High toughness titanium alloy development
Entwicklung hochzaeher Titanlegierungen
US Government Reports ; 1-50
1976
50 Seiten
Report
English
Review Thermomechanical Processing and Microstructure of High Strength-toughness Titanium Alloy
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