Machine learning enabled processing map generation for high-entropy alloy

Identifying optimum processing conditions is necessary for new material development. The flow curves can be used to develop the processing map for an alloy. The current study trained multiple machine learning models such as Random Forest Regressor (RFR), K Nearest Neighbors (KNN), Extra Tree Regressor (ETR) and Artificial Neural Network (ANN) to predict the flow behaviour of the material. The testing R2 fit score of more than 0.99 was obtained for all four algorithms, and trained models were used to generate the flow curves at various temperature strain rate combinations for CoCrFeNiTa0.395 eutectic high entropy alloy. A processing map was developed using the results from ANN and validated with the experimental microstructure observations.