Fe-based metallic glasses(MGs)have shown great commercial values due to their excellent soft magnetic properties.Magnetism prediction with consideration of glass forming ability(GFA)is of great signifi-cance for developing novel functional Fe-based MGs.However,theories or models established based on condensed matter physics exhibit limited accuracy and some exceptions.In this work,based on 618 Fe-based MGs samples collected from published works,machine learning(ML)models were well trained to predict saturated magnetization(Bs)of Fe-based MGs.GFA was treated as a feature using the experimen-tal data of the supercooled liquid region(ΔTx).Three ML algorithms,namely eXtreme gradient boosting(XGBoost),artificial neural networks(ANN)and random forest(RF),were studied.Through feature selec-tion and hyperparameter tuning,XGBoost showed the best predictive performance on the randomly split test dataset with determination coefficient(R2)of 0.942,mean absolute percent error(MAPE)of 5.563％,and root mean squared error(RMSE)of 0.078 T.A variety of feature importance rankings derived by XGBoost models showed that ΔTx played an important role in the predictive performance of the models.This work showed the proposed ML method can simultaneously aggregate GFA and other features in ther-modynamics,kinetics and structures to predict the magnetic properties of Fe-based MGs with excellent accuracy.

Xin Li;Guangcun Shan;C.H. Shek

School of Instrumentation Science and Opto-electronics Engineering,Beihang University,Beijing 100191,China;Department of Materials Science and Engineering,City University of Hong Kong,Kowloon Tong,Hong Kong SAR,China

材料科学技术（英文版）

[1]Xin Li;Guangcun Shan;C.H. Shek-.Machine learning prediction of magnetic properties of Fe-based metallic glasses considering glass forming ability)[J].材料科学技术（英文版）,2022(08):113-120

hyperparameter,modynamics

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