Abstract
Creep property of high-temperature titanium alloys is one of the most important indexes to evaluate their high-temperature performance. The microstructure of titanium alloy materials plays a decisive role in creep resistance. Coarser the grains are and finer the secondary phase is, better is the creep property. Suitable hot deformation parameters, heat treatment processes and surface treatment techniques can be selected to acquire satisfactory microstructure, which can significantly increase the creep property of high-temperature titanium alloys. Adding alloying elements has a significant effect on the improvement of titanium alloy creep resistance. Alloying elements can change the morphology and phase content of high-temperature titanium alloy, thus affecting its creep property. The development direction of creep property of high-temperature titanium alloys is optimization of the type and content of alloying elements, selection of suitable processing conditions and application of appropriate heat treatment or surface treatment processes.
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