CAJ | 학술논문

基于热力学理论，结合实验测量数据，计算了相变温度分别在室温以下、室温附近、室温以上3种情况下铁磁形状记忆合金NiMnGa单晶马氏体相变过程中的相关能量，并进行了分析．结果进一步表明：相变循环曲线分支的斜率取决于弹性应变能，而相变热滞后起源于相界面摩擦．
기우열역학이론，결합실험측량수거，계산료상변온도분별재실온이하、실온부근、실온이상3충정황하철자형상기억합금NiMnGa단정마씨체상변과정중적상관능량，병진행료분석．결과진일보표명：상변순배곡선분지적사솔취결우탄성응변능，이상변열체후기원우상계면마찰．
Based on the thermo - dynamical theory and some experimental data, the relevant energy contributions related to the thermoelastic martensitic transformation for three off - stoichiometrie NiMnGa single crystals with the transformation temperature below, near and above room temperature, respectively, were calculated, and their influence to the transformation behavior was discussed. The results identify further that for a completely thermoelastic martensitic transformation, the slope of the transformation loop results from the elastic strain energy, and the thermal hysteresis comes from the friction of interfacial motion.