通过光学显微镜、扫描电镜、X射线衍射仪、室温压缩试验机等研究了固溶温度对形状记忆合金Cu-17．55A1-9．84Mn（物质的量分数／％，下同）和Cu-19．1Al-9．9Mn冷加工性能的影响。结果表明：固溶温度对含17．55％Al合金的冷加工性能影响显著，但对含19．1％A1合金的影响较小；含17．55％Al的合金因铝含量较低，经700℃以上温度固溶后冷至室温获得的13相或18R马氏体具有低的有序度，在应力作用下容易发生马氏体转变或马氏体再取向，其冷加工性能显著好于α＋β两相区时的；含19．1％A1合金在不同温度固溶后的冷加工性能显著低于含17．55％A1合金的，Ig其室温组织主要由有序度高的13相组成。
The cold working properties of the Cu-17. 55A1 9. 84Mn （mole fraction） and tSu-19. 1A1-9.9 Mn shape memory alloys were studied by means of optical microscopy, scanning electron microscopy, X-ray diffractometer and room temperature compression tester. The results show that the solid solution temperature had a significant effect on the cold working properties of the alloy containing 17.55%A1, but a weak effect on that of the alloy containing 19.1 ~ A1. After solid solution above 700℃,β phase or 18R martensite with low order degree was obtained at room temperature because the alloy containing 17. 55% A1 owned low aluminum content, thus the stress easily made β phase or 18R martensite transform into martensite or martensite reorient, so the cold working properties were much higher than the alloy in two phase a and 13. The cold working properties of the alloy containing 19.1%A1 were far lower than those of the alloy containing 17. 55% A1 as its structure was mainly composed of β phase with high order degree at room temperature.
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