Solidification Microstructure Simulation of Ti-6Al-4V Alloy by CAFE Method
The CAFE module in ProCAST software was utilized to simulate the solidification grain structure of Ti-6Al-4V alloy,and the step specimen was prepared by investment casting to verify and evaluate the simulation results.The simulation results indicate that the structure presents columnar grains on the surface,which is transformed into equiaxed grains at the center of the casting.The average grain diameter is increased with the increase of wall thickness,and the grain distribution is consistent with the experimental results.The coincidence rate of simulated average grain diameter with the actual results reaches 80%～99%,meeting the engineering application expectation.
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