形状记忆合金相变过程中热力学能变化探究

Internal Enery in the Shape Memory Alloys

目的研究在一个方面给出形状记忆合金的自由能变换的规律．方法根据固体理论，利用晶格原子势能和晶格振动能，讨论在形状记忆合金相变过程中热力学能的变化，分析热力学能的具体表现形式，并给出能量转化的量．结果与结论在形状记忆合金正相变过程中，热力学能的变化促进了相变．

Aim To study the rules of change of free energy in shape memory alloy. Methods The crystal potential energy and crystal vibration energy were used to analyze the change of the free energy in shape memory alloy and calculate the quantity. Results and Conclusion In the phase transformation from parent phase to matensites phase, the crystal energy and crystal vibration energy promote the phase transformation.