高熵合金
叠加断层
堆积
主成分分析
合金
材料科学
层错能
组分(热力学)
计算机科学
位错
统计物理学
人工智能
热力学
冶金
化学
复合材料
物理
有机化学
作者
Xin Liu,Yaxin Zhu,Changwei Wang,Kangning Han,Lv Zhao,Shuang Liang,Minsheng Huang,Zhenhuan Li
标识
DOI:10.1016/j.jallcom.2023.171547
摘要
Due to the chemical disorder in the multi-principal component alloy, the stacking fault energy (SFE) of high entropy alloy is greatly affected by the complex local elemental environment, thus invalidating the traditional SFE calculation approach. Herein, a novel strategy for localized stacking fault energy (LSFE) calculation is proposed, which can not only reasonably incorporate the local chemical fluctuation effect in HEAs but also allows to realize high-throughput SFE calculations. Based on statistical method, the quantitative probability distributions of SFEs in FCC and BCC HEAs are achieved, which are necessary for further study of dislocation motion and up-scale modeling of HEAs. Finally, the intrinsic correlation between the LSFE and the local composition inhomogeneity in HEAs is unprecedentedly established with the machine learning (ML) methods. By classifying the features, the main factors that affect the LSFE are revealed, which can provide significant guidance for the composition optimization of HEAs.
科研通智能强力驱动
Strongly Powered by AbleSci AI