CAJ | 학술논문

采用SHPB实验装置对处于奥氏体状态下的镍钛形状记忆合金进行了连续动态冲击实验，而且每次冲击时要保持冲击功相同，实验结果表明随着冲击次数的增加，镍钛形状记忆合金的应变率在降低，马氏体相变初始应力在增加，具有逐次强化效应，卸栽后合金的变形回复率也随着冲击次数的增加而增加。
채용SHPB실험장치대처우오씨체상태하적얼태형상기억합금진행료련속동태충격실험，이차매차충격시요보지충격공상동，실험결과표명수착충격차수적증가，얼태형상기억합금적응변솔재강저，마씨체상변초시응력재증가，구유축차강화효응，사재후합금적변형회복솔야수착충격차수적증가이증가。
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.