Correlation Between Elastic Properties and Phase Transformation of Zr50Pd50−xRux High-Temperature Shape Memory Alloys Designed by DFT

Yu-Nien Shen, D. Nkomo, S. Matsunaga, M. J. Phasha, Y. Yamabe-Mitarai
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Abstract

The effect of Ru addition on the martensitic transformation and mechanical properties of Zr50Pd50−xRux SMAs shape memory alloys has been studied. Strain–temperature experiments, differential scanning calorimeter, and scanning electron microscope analyses were performed to validate the theoretical predictions by DFT calculation regarding the influence of the C′ parameter on martensitic stability. Despite the absence of an observed shape memory effect under the tested conditions, the findings suggest that ZrPdRu alloys hold promise for high-temperature applications.

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通过 DFT 设计的 Zr50Pd50-xRux 高温形状记忆合金的弹性特性与相变之间的相关性
研究了添加 Ru 对 Zr50Pd50-xRux SMAs 形状记忆合金马氏体转变和机械性能的影响。通过应变-温度实验、差示扫描量热计和扫描电子显微镜分析,验证了 DFT 计算关于 C′参数对马氏体稳定性影响的理论预测。尽管在测试条件下没有观察到形状记忆效应,但研究结果表明 ZrPdRu 合金在高温应用中大有可为。
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