形状记忆合金使用中的几个问题

显示形状记忆效应和超弹性的合金是一类新型的功能性材料,已在许多领域得到了应用,也有许多潜在的用途尚左发掘中。但是这类合金在使用中也产生了不少材料科学方面的问题,如相变点、淬透性、疲劳寿命等。本文从使用角度出发,讨论了这些问题的实质和解决这些问题的途径。

Several Problems in Application of Shape Memory Alloys

The alloys having specialities of shape memory and superelasticity are new functional materials.They have been used in many fields.Now, many potential application of these alloys are being found.However,in the use of these alloys,there are some problems of material science which should be solved,such as phase change temperature,hardenabi- lity and fatigue life.For the good use of these materials,in this ar- ticle the author tries to prove the essence of these problems and find the solutions of them.