On the rapid cooling cast solidification microstructures of Mg-Ca-Zn alloys.

ABSTRACT: This work investigates the influence of Mg-Zn-Ca alloy compositions and rapid cooling conditions on microstructural evolution, with a focus on the formation and behaviour of intermetallic phases such as Mg₂Ca, MgZn, and Ca₂Mg₆Zn₃ during solidification. To achieve this, a combination of experimental characterisation and computational modelling was employed. The Scheil model, extended to ternary alloy systems, was used to simulate micro-segregation during solidification, while a multicomponent mean-field model was applied to predict solid-state phase transformations and the evolution of second-phase particles. CALPHAD-based thermodynamic calculations were integrated to refine the prediction of segregation pathways and phase distributions under non-

SUBMITTER: Xie Y 

PROVIDER: S-EPMC12628445 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature