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Title: Neural network potential for Zr–Rh system by machine learning

Journal Article · · Journal of Physics. Condensed Matter

Zr–Rh metallic glass has enabled its many applications in vehicle parts, sports equipment and so on due to its outstanding performance in mechanical property, but the knowledge of the microstructure determining the superb mechanical property remains yet insufficient. Here, we develop a deep neural network potential of Zr–Rh system by using machine learning, which breaks the dilemma between the accuracy and efficiency in molecular dynamics simulations, and greatly improves the simulation scale in both space and time. Here, the results show that the structural features obtained from the neural network method are in good agreement with the cases in ab initio molecular dynamics simulations. Furthermore, we build a large model of 5400 atoms to explore the influences of simulated size and cooling rate on the melt-quenching process of Zr77Rh23. Our study lays a foundation for exploring the complex structures in amorphous Zr77Rh23, which is of great significance for the design and practical application.

Research Organization:
Ames Lab., Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; Shanghai Municipal Science and Technology Commission; National Natural Science Foundation of China (NSFC); China Postdoctoral Science Foundation; Fundamental Research Funds for the Central Universities; National Key R&D Plan of China; Natural Science Foundation of Shandong Province
Grant/Contract Number:
AC02-07CH11358; 11874318; 18JC1411500; 11374055; 61427815; 51772113; 2020M682387; 2021GCRC051; 2017YFB0701701; ZR2018MA043
OSTI ID:
1833051
Report Number(s):
IS-J-10,646; TRN: US2216807
Journal Information:
Journal of Physics. Condensed Matter, Vol. 34, Issue 7; ISSN 0953-8984
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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