TY - JOUR
T1 - Phase-field simulation of the effect of interactions between ordered domains on transformation kinetics in precipitation
AU - Zhang, Yuxiang
AU - Wang, Jincheng
AU - Yang, Yujuan
AU - Yang, Gencang
AU - Zhou, Yaohe
PY - 2008/3/1
Y1 - 2008/3/1
N2 - A two-dimensional phase-field simulation is performed to investigate the effect of interactions between ordered domains on transformation kinetics in Ni-Al binary alloys. By comparing the simulated results of the one-domain system with those of the four-domain system, it is concluded that the transformation of the one-domain system is faster than that of the four-domain one due to the coalescence of the 'in-phase' particles (same kinds of domains) and the mutual blocking effect of the 'out-of-phase' particles (different kinds of domains). Simulated results are also compared with the Johnson-Mehl-Avrami-Kolmogorov (JMAK) theory, and it is found that the JMAK model can describe the transformation kinetics at the initial stage well; however, in the subsequent evolution process, the JMAK model will overestimate the transformation due to the neglecting of the soft impingement.
AB - A two-dimensional phase-field simulation is performed to investigate the effect of interactions between ordered domains on transformation kinetics in Ni-Al binary alloys. By comparing the simulated results of the one-domain system with those of the four-domain system, it is concluded that the transformation of the one-domain system is faster than that of the four-domain one due to the coalescence of the 'in-phase' particles (same kinds of domains) and the mutual blocking effect of the 'out-of-phase' particles (different kinds of domains). Simulated results are also compared with the Johnson-Mehl-Avrami-Kolmogorov (JMAK) theory, and it is found that the JMAK model can describe the transformation kinetics at the initial stage well; however, in the subsequent evolution process, the JMAK model will overestimate the transformation due to the neglecting of the soft impingement.
UR - http://www.scopus.com/inward/record.url?scp=40549090928&partnerID=8YFLogxK
U2 - 10.1088/0965-0393/16/2/025004
DO - 10.1088/0965-0393/16/2/025004
M3 - 文章
AN - SCOPUS:40549090928
SN - 0965-0393
VL - 16
JO - Modelling and Simulation in Materials Science and Engineering
JF - Modelling and Simulation in Materials Science and Engineering
IS - 2
M1 - 025004
ER -