Development of neural network potential for Al-based alloys containing vacancy

Potential energy of an alloy is an essential indicator for evaluating the stability of the structure in predicting new materials. Therefore, how to calculate the potential energy in material design has become an inevitable problem. While first-principles calculations can provide chemical accuracy fo...

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Main Authors: Jia ZHAO, Yutaro MAEDA, Kenjiro SUGIO, Gen SASAKI
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2023-07-01
Series:Mechanical Engineering Journal
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/mej/10/4/10_23-00066/_pdf/-char/en
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author Jia ZHAO
Yutaro MAEDA
Kenjiro SUGIO
Gen SASAKI
author_facet Jia ZHAO
Yutaro MAEDA
Kenjiro SUGIO
Gen SASAKI
author_sort Jia ZHAO
collection DOAJ
description Potential energy of an alloy is an essential indicator for evaluating the stability of the structure in predicting new materials. Therefore, how to calculate the potential energy in material design has become an inevitable problem. While first-principles calculations can provide chemical accuracy for arbitrary atomic arrangements, they are prohibitive in terms of computational effort and time. To enable atomistic-level simulations of both the processing and performance of Aluminum alloys, neural network potential was proposed to predict the binding energy of vacancy-containing aluminum alloys in a highly accurate state. This method combined first-principles calculations and machine learning techniques to explore the intrinsic link between solid solution structure and binding energies. In this study, four binary alloys (aluminum-silicon, aluminum- zirconium, aluminum-magnesium and aluminum-titanium alloys) were investigated. The mean squared errors were used to quantify the quality of the neural network potential models and it was found that the trained model is more stable and exhibits high accuracy for energy prediction. The Monte Carlo simulation results show that using this neural network potential successfully simulated aging process of aluminum alloys, and the neural network potential can be much faster than first-principles calculations, even with high accuracy.
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spelling doaj.art-390a3c56698d471b86e877616038bffd2023-08-17T02:40:07ZengThe Japan Society of Mechanical EngineersMechanical Engineering Journal2187-97452023-07-0110423-0006623-0006610.1299/mej.23-00066mejDevelopment of neural network potential for Al-based alloys containing vacancyJia ZHAO0Yutaro MAEDA1Kenjiro SUGIO2Gen SASAKI3Graduate School of Advanced Science and Engineering, Hiroshima UniversityGraduate School of Advanced Science and Engineering, Hiroshima UniversityGraduate School of Advanced Science and Engineering, Hiroshima UniversityGraduate School of Advanced Science and Engineering, Hiroshima UniversityPotential energy of an alloy is an essential indicator for evaluating the stability of the structure in predicting new materials. Therefore, how to calculate the potential energy in material design has become an inevitable problem. While first-principles calculations can provide chemical accuracy for arbitrary atomic arrangements, they are prohibitive in terms of computational effort and time. To enable atomistic-level simulations of both the processing and performance of Aluminum alloys, neural network potential was proposed to predict the binding energy of vacancy-containing aluminum alloys in a highly accurate state. This method combined first-principles calculations and machine learning techniques to explore the intrinsic link between solid solution structure and binding energies. In this study, four binary alloys (aluminum-silicon, aluminum- zirconium, aluminum-magnesium and aluminum-titanium alloys) were investigated. The mean squared errors were used to quantify the quality of the neural network potential models and it was found that the trained model is more stable and exhibits high accuracy for energy prediction. The Monte Carlo simulation results show that using this neural network potential successfully simulated aging process of aluminum alloys, and the neural network potential can be much faster than first-principles calculations, even with high accuracy.https://www.jstage.jst.go.jp/article/mej/10/4/10_23-00066/_pdf/-char/enmachine learningmonte carlo methodfirst-principles calculationbinding energyaluminum alloysvacancy
spellingShingle Jia ZHAO
Yutaro MAEDA
Kenjiro SUGIO
Gen SASAKI
Development of neural network potential for Al-based alloys containing vacancy
Mechanical Engineering Journal
machine learning
monte carlo method
first-principles calculation
binding energy
aluminum alloys
vacancy
title Development of neural network potential for Al-based alloys containing vacancy
title_full Development of neural network potential for Al-based alloys containing vacancy
title_fullStr Development of neural network potential for Al-based alloys containing vacancy
title_full_unstemmed Development of neural network potential for Al-based alloys containing vacancy
title_short Development of neural network potential for Al-based alloys containing vacancy
title_sort development of neural network potential for al based alloys containing vacancy
topic machine learning
monte carlo method
first-principles calculation
binding energy
aluminum alloys
vacancy
url https://www.jstage.jst.go.jp/article/mej/10/4/10_23-00066/_pdf/-char/en
work_keys_str_mv AT jiazhao developmentofneuralnetworkpotentialforalbasedalloyscontainingvacancy
AT yutaromaeda developmentofneuralnetworkpotentialforalbasedalloyscontainingvacancy
AT kenjirosugio developmentofneuralnetworkpotentialforalbasedalloyscontainingvacancy
AT gensasaki developmentofneuralnetworkpotentialforalbasedalloyscontainingvacancy