摘要
利用相变热力学和界面摩擦概念,推导出Fe—Mn-Si合金相变热滞(AS-MS)的一般计算表达式;根据此关系式, 计算了这种合金的相变热滞,计算结果与实验值相符.合金的界面摩擦能耗比较大,且与合金的热滞成正比,由此可知合金的热滞大是由于界面摩擦能耗大所造成的.
A normal formula, to calculate the thermo-hysteresis of phase transformation in Fe-Mn-Si shape memory alloys, is obtained by using thermodynamics and the concept of interface-friction. The calculated results of thermo-hysteresis are consistent to the values from experiments.The big thermo-hysteresis (As - Ms) of transition comes from the much interface-friction which is direct-proportional to (As - Ms).
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2005年第8期795-798,共4页
Acta Metallurgica Sinica
基金
教育部高等学校博士学科点专项科研基金资助项目97024835
美国Emerson公司合作项目