Recent developments in microstructure/property relationships of beta titanium alloys

There has been significant progress in regard to the effect of stability and grain size of the beta phase on deformation modes and mechanical properties of beta titanium alloys. For example, it has been shown recently, that an increase in the stability of the beta phase reduces the formation of stress-induced plates thereby decreasing the ambient temperature creep strain. Increase in the stability appears to favor deformation by slip. The grain size of the beta phase has also been shown to effect the deformation modes in tensile deformation and the extent of ambient temperature creep strain. In this paper the interrelationships between stability, microstructure, deformation modes and mechanical properties of beta titanium alloys will be critically reviewed.