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对现有FeMnSi、FeMnSiCrNi系形状记忆合金的成份和γε马氏体相变温度的实验测定数据进行了多元线性回归处理,建立了马氏体相变温度Mεs、Aεs以及相变热滞(Aεs-Mεs)与合金成份之间的定量经验关系.结果表明:Mn、Cr、Ni元素均降低相变温度Mεs和Aεs;但Si明显使其升高.同时表明此类合金中的Si、Cr含量增加,合金的相变热滞增大.这一结果为此类合金的成份设计提供了依据.
The experimental data of the existing FeMnSi, FeMnSiCrNi SMA and the γγε martensitic transformation temperature were subjected to multiple linear regression. Martensite The quantitative empirical relationship between the phase transformation temperatures Mεs, Aεs and the phase change thermal hysteresis (Aεs-Mεs) and alloy composition. The results show that all the Mn, Cr and Ni elements reduce the Mεs and Aεs phase transformations; however, Si obviously increases them. At the same time, it is shown that the content of Si and Cr in these alloys increase, and the phase transition heat stagnation increases. This result provides a basis for the composition design of such alloys.