单向、双向记忆合金的相变热测定  

CALORIMETRIC MEASUREMENTS FOR ONE WAY AND TWO WAY CuZnAl MEMORY ALLOYS

作　　者：谭树松[1] 徐惠彬[1] 

机构地区：[1]中南工业大学,北京航空航天大学

出　　处：《金属学报》1994年第9期A404-A408,共5页Acta Metallurgica Sinica

摘　　要：用ＤＳＣ－７研究了ＣｕＺｎＡｌ单向、双向记忆合金的相变潜热，发现：单向、双向记忆合金相变过程的ＤＳＣ曲线形状各异，单向记忆合金的ＤＳＣ曲线为犬牙状，有多个峰；而双向记忆合金的ＤＳＣ曲线只有一个峰。在相变热的大小上，单向记忆合金的相变热比双向记忆合金约大１／４。One way and two way shape memory alloys of Cu-21% Zn-6% Al (wt-%)were studied by differential scanning calorimetry. The profiles of endothermic and exothermic peaks of one way shape memory alloy are different from those of two way shape memory alloy.The former shows smooth peaks while the other shows bumpy peaks. Besides, the heat of martensitic transformation of two way shape memory alloy is about 25% less than that of one way shape memory alloy.

关 键 词：形状记忆合金 相变热 测定 

分 类 号：TG139.6[一般工业技术—材料科学与工程]