一、前言 形状记忆合金(SMA)的出现为解决许多工程实际问题提供了可能,但它远没有达到它本来应该达到的那种理想和普及程度。因为它刚刚从材料学领域内掘起,它的广为应用不可能完全由致力于SMA研究的材料科学家来实现,而目前工程界对它的了解又非常有限。因此,今后SMA应用领域的开拓在很大程度上取决于工程界对SMA的深入了解以及他们与材料界的携手合作。 I. INTRODUCTION The advent of shape memory alloys (SMA) has made it possible to solve many practical engineering problems, but it has far failed to achieve the kind of ideals and popularity it should have been. Because it has just begun to emerge from the field of materials science, its wide application can not be completely achieved by material scientists dedicated to SMA research, and the current understanding of the industry is very limited. Therefore, the future development of SMA applications depends largely on engineering in-depth understanding of SMA and their cooperation with the material sector.