论文部分内容阅读
用差示扫描量热分析技术研究了三种不同Mn含量的Cu Zn Al Mn Ni记忆合金中马氏体正逆转变的全过程。发现马氏体在共格切变时所产生的弹性应变能之和,约等于逆、正转变的热效应之差。同时,结果还表明,Mn含量不同,单位质量的马氏体中所产生的弹性应变能亦不相同,且弹性应变能的变化与Mn含量的变化并非是简单的线性关系。
Differential scanning calorimetry (DSC) was used to investigate the whole process of martensite transformation in Cu Zn Al Mn Ni memory alloys with three different Mn contents. It is found that the sum of elastic strain energy produced by martensite during coherent shear transformation is equal to the difference between the thermal effects of inversion and positive transformation. At the same time, the results also show that, different Mn content, the elastic strain energy produced per unit mass of martensite is also different, and the elastic strain energy change and Mn content change is not a simple linear relationship.