Abstract
ABSTRACTLaser powder-bed fusion solidification of Ni–Nb alloys often results in cellular morphology in which the solute microsegregation was determined using experiments and simulations, and the data obtained were utilised to explore the predictive capability of microsegregation models. The experimental ‘ground truth’ was compared with high-fidelity phase-field simulations as well as with analytical model predictions. Supervised statistical analyses, including linear regression, polynomial regression, and model reification were employed to understand the merit of these approaches toward microsegregation estimation. The bias-variance and accuracy-interpretability trade-off limits were considered in the data analysis that was consistent with our experimental findings.
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