Novel TiNiCuNb shape memory alloys with excellent thermal cycling stability
| Autor: | Li Li, Richard D. James, Hanling Gu, Yunxiang Tong, Alexander V. Shuitcev, Wenyin Qi |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Mechanical Engineering Doping Metals and Alloys Thermodynamics 02 engineering and technology Temperature cycling Shape-memory alloy 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Stability (probability) 0104 chemical sciences Mechanics of Materials Diffusionless transformation Thermal Materials Chemistry 0210 nano-technology |
| Zdroj: | Journal of Alloys and Compounds. 782:343-347 |
| ISSN: | 0925-8388 |
| Popis: | The thermal cycling stability of martensitic transformation in (Ti54Ni34Cu12)100-xNbx (x = 0, 6 and 10 at.%) was investigated. The results show that doping Nb into Ti54Ni34Cu12 enhances the thermal cycling stability of the material. After 400 thermal cycles, the shift of martensitic transformation start temperature of Ti54Ni34Cu12 and (Ti54Ni34Cu12)90Nb10 alloys are 1.5 °C and 0.1 °C, respectively. This improvement can be ascribed to the fact that the proper doping of Nb does not significantly reduce the value of λ2, whereas improves the other cofactor conditions (CC2 and CC3) and the yield strength. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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