TY - JOUR
T1 - Study for the effect of strain energy on two-phase precipitation and Atoms occupying in Ni 68.2Al 22.7V 9.1 alloy using the microscopic phase-field method
AU - Liu, Fang
AU - Wang, Yongxin
AU - Chen, Zheng
AU - Wang, Xiaopeng
AU - Chen, Qian
AU - Tang, Hongkui
PY - 2012/6
Y1 - 2012/6
N2 - The effect of strain energy on Two-phase precipitation and Atoms occupying in Ni 68.2Al 22.7V 9.1 alloy was studied, using the microscopic phase-field method. It is found that the strain energy significantly extend the precipitation process of L1 2 phase, and restrain the precipitation of DO 22 phase. As DO 22 phase decreases, the occupation probability of V atom at different sites in L1 2 phase increases, and the higher the strain energy, the greater the chance of occupying. The effect of strain energy on occupation probability of Al atom at α 1 site in L1 2 phase is little, only a small reduction in amplitude, but it significantly reduces occupation probability of Al atom at α 2 site and β site. In all cases, the occupation probability of V atom at β site in L1 2 phase is always higher than that at α site.
AB - The effect of strain energy on Two-phase precipitation and Atoms occupying in Ni 68.2Al 22.7V 9.1 alloy was studied, using the microscopic phase-field method. It is found that the strain energy significantly extend the precipitation process of L1 2 phase, and restrain the precipitation of DO 22 phase. As DO 22 phase decreases, the occupation probability of V atom at different sites in L1 2 phase increases, and the higher the strain energy, the greater the chance of occupying. The effect of strain energy on occupation probability of Al atom at α 1 site in L1 2 phase is little, only a small reduction in amplitude, but it significantly reduces occupation probability of Al atom at α 2 site and β site. In all cases, the occupation probability of V atom at β site in L1 2 phase is always higher than that at α site.
KW - L1 structure-Ni V
KW - Microscopic phase-field
KW - Occupation probability
KW - Strain energy
UR - http://www.scopus.com/inward/record.url?scp=84865300981&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:84865300981
SN - 1002-185X
VL - 41
SP - 973
EP - 977
JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
IS - 6
ER -