Predicting short-range order evolution in WTaCrVHf refractory high-entropy alloys
Predicting short-range order evolution in WTaCrVHf refractory high-entropy alloys
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DOI：
10.1016/j.scriptamat.2023.115506
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发表时间：
2023
影响因子：
6
通讯作者：
Andrew M. Alvarado;Chanho Lee;J. Wróbel;D. Sobieraj;D. Nguyen-Manh;J. Poplawsky;S. Fensin;E. Martinez;O. El-Atwani
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文献类型：
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作者：
Andrew M. Alvarado;Chanho Lee;J. Wróbel;D. Sobieraj;D. Nguyen-Manh;J. Poplawsky;S. Fensin;E. Martinez;O. El-Atwani
多组分浓缩合金中的短程有序 (SRO) 会影响其机械响应。因此，了解成分如何改变系统中的化学顺序以设计具有最佳性能的材料至关重要。我们在此提出了一种预测化学复杂系统中的 SRO 和热力学性质的方法，并将其应用于 WTaCrVHf 五元合金。我们观察到，Hf 的添加显着改变了 SRO，主要是在中低温下，与实验观察结果相符。
Short-range order (SRO) in multicomponent concentrated alloys affects their mechanical response. Hence, is paramount to understand how composition modifies the chemical ordering in the system to design materials with optimal properties. We present here a methodology to predict the SRO and thermodynamic properties in chemically complex systems and apply it to the WTaCrVHf quinary alloy. We observe that the addition of Hf significantly modifies the SRO, mainly at intermediate to low temperatures, matching experimental observations.