Effects of microstructural variations on dynamic compressive deformation behavior of Ti–3Al–5Mo–5V alloy

Using the combination of thermal simulation test and statistical method, the effects of microstructure variation on dynamic compressive deformation behavior were investigated with a Ti–3Al–5Mo–5V alloy systemically, under the strain rate of 16.67 s− 1 at room temperature. The microstructure characteristics, such as the length, width and the aspect ratio (length/width) of α platelet, changes regularly with the increase of temperature or holding time. The aspect ratio and the size of α platelet affect the width of deformed shear band forming during the dynamic compressive deformation. Micro defects could be found when the width of deformed shear band decreases to a certain extent.