Influence of Pseudoelasticity on Mechanical Behavior of TiNi Alloy under Dynamic Impact Loading
Influence of Pseudoelasticity on Mechanical Behavior of TiNi Alloy under Dynamic Impact Loading作者机构:Department of Materials Science and Engineering China University of Petroleum Beijing 102249 China
出 版 物:《Petroleum Science》 (石油科学(英文版))
年 卷 期:2007年第4卷第1期
页 面:86-89页
核心收录:
学科分类:0820[工学-石油与天然气工程] 080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)]
基 金:国家自然科学基金(50471021) 教育部留学回国人员科研启动基金
主 题:TiNi alloy mechanical behavior contact force impact energy pseudoelasticity
摘 要:The mechanical behavior of TiNi alloy and Cr12MoV alloy under dynamic impact loading was investigated with a self-made impact testing system. The real-time contact force was measured with a piezoelectric force sensor and digital signal processing system during impact. Equations for predicting instantaneous velocity anti displacement were presented. The results showed that the TiNi alloy exhibited a plateau of maximum contact force with increasing impact height. At the plateau stage, TiNi alloy in the parent phase can absorb impact energy and keep the maximum contact force nearly identical due to its pseudoelasticity.