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Effect of Fe on Martensitic Transformation of NbRu High-Temperature Shape Memory Alloys: Experimental and Theoretical Study |
| TAN Chang-Long1, TIAN Xiao-Hua1,2, CAI Wei2 |
| 1Department of Applied Physics, Harbin University of Science and Technology, Harbin 1500802School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001 |
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| Cite this article: |
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TAN Chang-Long, TIAN Xiao-Hua, CAI Wei 2008 Chin. Phys. Lett. 25 3372-3374 |
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Abstract
Effect of Fe on the martensitic transformation of NbRu high-temperature shape memory alloys is investigated by the experiments and first-principles calculations. The results show that Fe is predicted to occupy Ru sites. The addition of Fe increases the stability of Nb50Ru50-xFex β phase, leading to the significant decrease of the β to β martensitic transformation temperature. In addition, the mechanism of the Fe alloying effect is explained on the basis of the electronic structure.
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| Keywords:
71.20.Lp
81.30.Kf
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Received: 04 June 2008
Published: 29 August 2008
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