Shape memory effect and compositional dependence of Zr-Cu binary and Zr-Cu-Al ternary alloys
The intermetallic compound ZrCu experiences a transformation from a parent phase into a martensitic phase with rapid cooling. ZrCu possesses considerable promise as a high-temperature shape memory alloy. In the present study, the shape memory effects of ZrCu, which was formed in a Zr-Cu-Al ternary a...
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| Autores principales: | , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
The Japan Society of Mechanical Engineers
2017
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/3bc6881bc0f946bcaed6108b3905579d |
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| Sumario: | The intermetallic compound ZrCu experiences a transformation from a parent phase into a martensitic phase with rapid cooling. ZrCu possesses considerable promise as a high-temperature shape memory alloy. In the present study, the shape memory effects of ZrCu, which was formed in a Zr-Cu-Al ternary alloy, was investigated. The Zr-Cu binary and Zr-Cu-Al ternary alloys with different alloy compositions were prepared. The crystalline structure, martensitic transformation temperature and macroscopic shape recovery behavior of these alloys were evaluated by means of X-ray diffraction, differential scanning calorimetry and compressive tests; the crystalline structure of the ZrCu in Zr-Cu-Al alloys varies with increasing Al concentration. In addition, it was confirmed that both the Zr-Cu binary and Zr-Cu-Al ternary alloys possess shape memory effects. Furthermore, it was found that the macroscopic shape recovery temperatures of these alloys decrease with increasing Al concentration. |
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