A parabolic approximation scheme for multi-phase-filed simulation of non-isothermal solidification

Chao Yang, Jing Wang, Hui Xing*, Houbing Huang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A parabolic approximation scheme is proposed to implement the multi-phase-filed simulation of non-isothermal solidification. Based on the second-order fitting of free energy density function, this scheme constructs an explicit expression for the calculation of phase compositions, which is more efficient than the traditional Newton's iteration scheme used in the Kim-Kim-Suzuki model. As an application example of this numeral scheme, the peritectic solidification of Ti-Al alloy is simulated to present the coupling of multi-phase field and concentration field, which reveals the non-isothermal evolution principle of microstructure and micro-segregation. The present study not only improves the calculation efficiency through a new numeral scheme, but also contributes to the understanding of the thermodynamics and kinetics of Ti-Al peritectic solidification.

Original languageEnglish
Article number102712
JournalMaterials Today Communications
Volume28
DOIs
Publication statusPublished - Sept 2021

Keywords

  • Multi-phase-field simulation
  • Non-isothermal peritectic solidification
  • Parabolic approximation scheme
  • Ti-Al alloy

Fingerprint

Dive into the research topics of 'A parabolic approximation scheme for multi-phase-filed simulation of non-isothermal solidification'. Together they form a unique fingerprint.

Cite this