Multiwell model of phase separation: Arbitrarily strong total-spreading case

Abstract: In this work, we revisit a multi-well phase separation model in the context of β–ω transformations in titanium alloys. We propose a new formulation by modifying the algebraic structure of the interfacial free energy. This adjustment relaxes the standard coercivity constraint on surface tensions in total-spreading regimes and, importantly, prevents the formation of mixed ω–ω states—configurations that are crystallographically impossible. We demonstrate the effectiveness of the proposed model through simplified simulations and outline a path toward more realistic three-dimensional modeling of β–ω phase transitions in titanium alloys.

Computer scienceMathematics

Audience: researchers in the topic

Modelling of materials - theory, model reduction and efficient numerical methods (UNCE MathMAC)