Nature Communications (Nov 2024)

General-purpose machine-learned potential for 16 elemental metals and their alloys

  • Keke Song,
  • Rui Zhao,
  • Jiahui Liu,
  • Yanzhou Wang,
  • Eric Lindgren,
  • Yong Wang,
  • Shunda Chen,
  • Ke Xu,
  • Ting Liang,
  • Penghua Ying,
  • Nan Xu,
  • Zhiqiang Zhao,
  • Jiuyang Shi,
  • Junjie Wang,
  • Shuang Lyu,
  • Zezhu Zeng,
  • Shirong Liang,
  • Haikuan Dong,
  • Ligang Sun,
  • Yue Chen,
  • Zhuhua Zhang,
  • Wanlin Guo,
  • Ping Qian,
  • Jian Sun,
  • Paul Erhart,
  • Tapio Ala-Nissila,
  • Yanjing Su,
  • Zheyong Fan

DOI
https://doi.org/10.1038/s41467-024-54554-x
Journal volume & issue
Vol. 15, no. 1
pp. 1 – 15

Abstract

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Abstract Machine-learned potentials (MLPs) have exhibited remarkable accuracy, yet the lack of general-purpose MLPs for a broad spectrum of elements and their alloys limits their applicability. Here, we present a promising approach for constructing a unified general-purpose MLP for numerous elements, demonstrated through a model (UNEP-v1) for 16 elemental metals and their alloys. To achieve a complete representation of the chemical space, we show, via principal component analysis and diverse test datasets, that employing one-component and two-component systems suffices. Our unified UNEP-v1 model exhibits superior performance across various physical properties compared to a widely used embedded-atom method potential, while maintaining remarkable efficiency. We demonstrate our approach’s effectiveness through reproducing experimentally observed chemical order and stable phases, and large-scale simulations of plasticity and primary radiation damage in MoTaVW alloys.