NiTi形状记忆合金丝的加热电流与相变时间关系的研究  

Study on the Relationship between Electric Heating and Transformation Time of NiTi Shape Memory Alloy Wires

作　　者：牛晓东[1] 王利[1] 吕昊暾[1] 龚建华[1] 

机构地区：[1]中北大学机电工程学院

出　　处：《弹箭与制导学报》2008年第4期306-308,共3页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：武器装备预研基金资助

摘　　要：文中针对形状记忆合金在军事应用上的缺点,提出利用电流驱动SMA实现对SMA的变形时刻和变形时间的精确控制,并通过传热学理论分析与试验得出SMA相变时间和加热电流的经验公式。For overcoming the shortcoming of shape memory alloy（SMA） for military use, the idea that electric heating NiTi SMA accurately controis its transformation＇s start time and transforming time was proposed. Moreover, based on heat transfer analysis and the experimental verification, the time for NiTi SMA＇s transformation and the heating current＇s empirical formula were shown.

关 键 词：NITI形状记忆合金 加热电流 相变时间 

分 类 号：TG139.6[一般工业技术—材料科学与工程]