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利用金相、X－射线、DSC、透射电子显微镜研究了氢对Ni25Ti50Cu25合金马氏作和变的影响．结果表明，当氢含量高时，氢与全金元素形成氢化物，与氧化物共存的李晶亚结构马氏体失去热弹性。当氢含量低328ppm时，氢固溶于合金中，随氢含量增加，马氏体相变温度降低，氢使马氏体在热循环过程中发生稳定．
The effect of hydrogen on the martensitic transformation of Ni25Ti50Cu25 alloy was investigated by metallography, X-ray diffraction, transmission electron microscopy and transmission electron microscopy. The results show that when the hydrogen content is high, hydrogen and all-gold elements form hydride, and the Li Jing substructure martensite that coexists with the oxide loses its thermo-elasticity. When the hydrogen content is low 328ppm, the hydrogen solution dissolves in the alloy. With the increase of hydrogen content, the martensitic transformation temperature decreases and hydrogen makes the martensite stable during thermal cycling.