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| 氢对Ni25Ti50Cu25记忆合金马氏体相变的影响 | |
| 引用本文： | 崔立山 杨大智 等. 氢对Ni25Ti50Cu25记忆合金马氏体相变的影响[J]. 材料科学与工艺, 1999, 7(1): 104-107 |
| 作者姓名： | 崔立山 杨大智 等 |
| 作者单位： | [1]石油大学新材料工程研究中心 [2]大连理工大学材料工程系 |
| 摘 要： | 利用金相，X－射线，DSC，透射电子显微镜研究了氢对Ni25Ti50Cu25合金马氏体相变的影响，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329ppm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。 |
| 关 键 词： | 氢 Ni25Ti50Cu25 形状记忆合金 马氏体相变 镍钛铜合金 |
Effect of Hydrogen on Martensitic Transformation in a Ni_(25)Ti_(50)Cu_(25) Shape Memory Alloy |
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| Cui Lishan, Wang Yanhua, Li Shusheng, Cai Jinglun, Yang Dazhi. Effect of Hydrogen on Martensitic Transformation in a Ni_(25)Ti_(50)Cu_(25) Shape Memory Alloy[J]. Materials Science and Technology, 1999, 7(1): 104-107 | |
| Authors: | Cui Lishan Wang Yanhua Li Shusheng Cai Jinglun Yang Dazhi |
| Abstract: | The effect of hydrogen on martensitic transformation in a Ni25Ti50Cu25 shape meory alloy was investigated. When the content of hydrogen is higher, the hydride is formed and the mrtensite with twin substrucutre does not posses thermal-elsticity. When the content of hydrogen is lower than 328ppm, hydrogen dissolves in the alloy, the martensitic transformation temperature decreases with the increase of hydrogen content and some martensite losses thermal-elasticity in heating-cooling cycle processes. |
| Keywords: | hydrogen Ni_(25)Ti_(50)Cu_(25)shape memory alloy martensitic transformation |
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