The shape memory effect in a Ti50Pd50 alloy
The shape memory effect in a Ti50Pd50 alloy
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Ti50Pd50 合金的形状记忆效应
DOI：
10.1016/0956-716x(93)90138-i
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
H. Horikawa
中科院分区：
文献类型：
--
作者：
K. Otsuka;K. Oda;Y. Ueno;M. Piao;T. Ueki;H. Horikawa
形状记忆合金（SMA）作为一种新型的功能材料，在管道接头、电连接器、各种驱动器、医疗等领域得到了广泛的应用。在众多的形状记忆合金中，Ti-Ni合金因其优异的力学性能而被广泛应用。然而，由于可用转变温度的限制，它们可以使用的最高温度约为373 K。因此，迫切需要开发高温形状记忆合金，以扩大形状记忆合金的应用。Ti-Pd、Ni-Al合金系和Ti-Ni-Zr合金是最有希望的候选合金。Ti-Pd合金中的马氏体相变是Donkersloot和货车Vucht首先发现的。Khachin等人系统地研究了赝二元TiPd-TiNi合金系统，并确定了马氏体的相变温度和结构随组成的变化。
Shape memory alloys (SMA) have in the past few decades attracted considerable attention as new functional materials, with commercial applications in pipe couplings, electrical connectors, various actuators, medical use etc. Among many shape memory alloys, Ti-Ni alloys are used mostly because of excellent mechanical properties. However, the maximum temperatures they can be used at is about 373K, due to the limitations of available transformation temperatures. Thus, a strong need exists to develop high temperature shape memory alloys, to widen the applications of SMA. As such candidates, Ti-Pd and Ni-Al alloys systems and a Ti-Ni-Zr alloy look most hopeful. The martensitic transformation in the Ti-Pd alloy was first found by Donkersloot and Van Vucht. Khachin et al. systematically studied the pseudo-binary TiPd-TiNi alloy system, and determined the transformation temperatures and the structures of the martensites as a function of composition.