摘要
采用差示扫描量热分析技术在５℃／ｍｉｎ以及在超低降温速率下，研究了ＣｕＺｎＡｌＭｎＮｉ形状记忆合金马氏体相变的热焓。通过实验和计算，由母相向马氏体转变时单位质量的相变总焓、热容改变焓和马氏体相变焓分别是３．２２Ｊ／ｇ、１．８８Ｊ／ｇ和１．３４Ｊ／ｇ。
Using the technology of differential scanning calorimetry.we have studied the heat enthalpy during martensitic transformation in CuZn AlMnNi shape memory alloy at 5℃/min and ultra low falling speed of temperature.The experimental results and the calculation show that the total phase transformation heat enthalpy of the unit mass from mother phase to martensite is 3.22 J/g,the heat enthalpy of the heat capacity and the martensitic transformation is 1.88J/g and 1.34J/g respectively.
出处
《功能材料》
EI
CAS
CSCD
1996年第6期528-529,533,共3页
Journal of Functional Materials
关键词
形状记忆合金
马氏体
相变焓
CuZnAlMnNi shape memory alloy,martensite,heat enthalpy during phase transformation
