TiNi超弹丝的传感及驱动功能研究  

Study on the sense and actuation property of TiNi superelastic-wire

作　　者：姚兴田[1] 邱自学[1] 周一丹[1] 

机构地区：[1]南通工学院机械工程系,江苏南通226007

出　　处：《功能材料》2002年第4期387-388,共2页Journal of Functional Materials

基　　金：江苏省自然科学基金资助项目 (BJ990 34) ;江苏省教育厅自然科学基金资助项目 (0 0KJB460 0 0 7)

摘　　要：测试了TiNi超弹丝在恒温拉伸、卸载过程中的电阻-应力 -应变关系曲线 ,分析了力学及电阻特性的变化机理。结果表明 ,在恒温拉伸过程中TiNi超弹丝的电阻变化率与温度呈近似线性关系 ,在卸载过程中TiNi超弹丝表现出较大的屈服应力。可得出TiNi超弹丝具有力传感与驱动功能的结论 。Resistance stress strain curves of TiNi superelastic wire during tension and unloading in constant temperature were test. Mechanism of the mechanics property and resistance nature was analyzed. Experimental results show that resistance strain relationship of TiNi superelastic wire was linear in constant temperature and TiNi superelastic wire has higher yield stress during restrained recovery. The conclusion that TiNi superelastic wire has sense and actuation property was educed. The theory foundation on constructing intelligent materials and structures using TiNi superelastic wire was provided.

关 键 词：TINI 超弹丝 传感特性 驱动特性 智能材料 形状记忆合金 

分 类 号：TB381[一般工业技术—材料科学与工程] TG139.6[金属学及工艺—合金]