The experimental study of dynamic mechanical property of Ni-Ti shape memory alloy

Continuous dynamic impact experiment was carried out to the Ni-Ti shape memory alloy of austenite state by SHPB experimental facilities,and the impact energy was kept the same every impact,the results show that with the increasing of the impact time,not only the initial stress for martensitic transformation increases because of successive strengthen effect,but also the deformation recovery rate after unloading increases at the same time,but the stress-rate decreases with the impact time.