TY - JOUR
T1 - A parabolic approximation scheme for multi-phase-filed simulation of non-isothermal solidification
AU - Yang, Chao
AU - Wang, Jing
AU - Xing, Hui
AU - Huang, Houbing
N1 - Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/9
Y1 - 2021/9
N2 - 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.
AB - 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.
KW - Multi-phase-field simulation
KW - Non-isothermal peritectic solidification
KW - Parabolic approximation scheme
KW - Ti-Al alloy
UR - http://www.scopus.com/inward/record.url?scp=85122694137&partnerID=8YFLogxK
U2 - 10.1016/j.mtcomm.2021.102712
DO - 10.1016/j.mtcomm.2021.102712
M3 - Article
AN - SCOPUS:85122694137
SN - 2352-4928
VL - 28
JO - Materials Today Communications
JF - Materials Today Communications
M1 - 102712
ER -