ORCID Profile
0000-0002-9219-4521
Current Organisation
University of Tokyo
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Publisher: IOP Publishing
Date: 23-02-2018
Publisher: Elsevier BV
Date: 09-2020
Publisher: Elsevier BV
Date: 2020
Publisher: Elsevier BV
Date: 07-2021
Publisher: Elsevier BV
Date: 07-2019
Publisher: Elsevier BV
Date: 2019
Publisher: Elsevier BV
Date: 2019
DOI: 10.2139/SSRN.3365121
Publisher: Springer Science and Business Media LLC
Date: 04-07-2020
Publisher: Wiley
Date: 11-07-2018
Publisher: MDPI AG
Date: 06-06-2021
DOI: 10.3390/MET11060922
Abstract: High-entropy alloys (HEAs) with multiple constituent elements have been extensively studied in the past 20 years, due to their promising engineering application. Previous experimental and computational studies of HEAs focused mainly on equiatomic or near equiatomic HEAs. However, there is probably far more treasure in those non-equiatomic HEAs with carefully designed composition. In this study, the molecular dynamics (MD) simulation combined with machine learning (ML) methods was used to predict the mechanical properties of non-equiatomic CuFeNiCrCo HEAs. A database was established based on a tensile test of 900 HEA single-crystal s les by MD simulation. Eight ML models were investigated and compared for the binary classification learning tasks, ranging from shallow models to deep models. It was found that the kernel-based extreme learning machine (KELM) model outperformed others for the prediction of yield stress and Young’s modulus. The accuracy of the KELM model was further verified by the large-sized polycrystal HEA s les. The results show that computational simulation combined with ML methods is an efficient way to predict the mechanical performance of HEAs, which provides new ideas for accelerating the development of novel alloy materials for engineering applications.
Publisher: Elsevier BV
Date: 02-2018
No related grants have been discovered for Yasushi Shibuta.