Grain Size Evolution Model of TB6 Titanium Alloys During β Process

Cui Xia, Lug Shi-qian, Du Hai-ming, Ouyang De-lai


Grain size evolution of TB6 titanium alloy during β process, which take into account the static grain growth, strain-induced grain growth and DRX-induced grain refinement, is modeled according to the deformation mechanism and driving forces. The material constants arising in the model has been determined from the experimental data of DRX grain sizes of the alloy deformed at the temperature of 1273K-1373K and strain rate of 0.001s-1-1s-1. Good agreement between the experimental data and the calculated results has been achieved.


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