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本支研究了在Cu-13.4AI-4.0Ni(mass％)单晶合金中,通过在时效过程马氏体相的稳定化诱发的双向形状记忆效应。采用不同的热处理制度,测定了长程有序度对相转变的影响。奥氏体相变温度受到有序度的强烈影响:在高于或低于二次相邻的L2有序温度下退火时,Ms的变化大于100℃。由
This work investigates the bidirectional shape-memory effect induced by the stabilization of the martensitic phase during aging in Cu-13.4AI-4.0Ni (mass%) single crystal alloys. Different heat treatment systems were used to determine the effect of long-range order on phase transformation. The austenite transformation temperature is strongly affected by the degree of order: Ms changes more than 100 ° C when annealed above or below the quadratic adjacent L2 order temperature. by