Ni_{50}Ti_{50-x}Er_{x}形状记忆合金的显微组织和马氏体相变

Mongolian Journal of Engineering and Applied Sciences Pub Date : 2021-09-01 DOI:10.22353/mjeas.v3i1.37

M. Dovchinvanchig, Ya. Gangantogos, B. Munkhjargal

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引用次数: 0

摘要

实验研究了稀土元素Er对Ni_{50}Ti_{50-x}Er_{x} (x = 0,1,5)形状记忆合金显微组织和相变行为的影响。结果表明:Ni-Ti-Er三元合金的显微组织由nii相和NiTi基体组成;所有合金均发生一步马氏体相变。随着Er含量的增加，马氏体相变温度M_s逐渐升高。

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MICROSTRUCTURE AND MARTENSITIC TRANSFORMATION OF Ni_{50}Ti_{50-x}Er_{x} SHAPE MEMORY ALLOYS

The effect of rare earth element Er addition on the microstructure and phase transformation behavior of Ni_{50}Ti_{50-x}Er_{x} (x =0, 1, 5) shape memory alloy was investigated experimentally. The results showed that the microstructure of Ni-Ti-Er ternary alloys consists of the NiEr precipitate and the NiTi matrix. A one-step martensitic transformation was observed in all alloys. The martensitic transformation temperature M_s increased gradually with increasing Er content.

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Mongolian Journal of Engineering and Applied Sciences

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