TY - JOUR
T1 - Thermodynamic assessment of the Nb-Si-Mo system
AU - Geng, Tai
AU - Li, Changrong
AU - Zhao, Xinqing
AU - Xu, Huibin
AU - Du, Zhenmin
AU - Guo, Cuiping
PY - 2010/9
Y1 - 2010/9
N2 - Based on the experimental isothermal sections at 800, 1000, 1700 and 1800 °C and the liquidus projections from both the literature and the present measurements, the ternary NbSiMo system is thermodynamically assessed using the Calculation of Phase Diagram method (CALPHAD). The constituent MoSi binary system is reassessed according to its related binary experimental data. The sublattice model of the phase Nb5Si3 in the constituent NbSi binary system is modified as (Nb)0.5(Nb,Si)0.125(Nb, Si)0.375, in order to give the solid phase β(Nb,Mo)5Si3 in the NbSiMo ternary system a better description. The parameters of the thermodynamic descriptions of the NbSiMo ternary system are optimized following the reported NbMo, the modified NbSi and the reassessed MoSi binary systems. The comparison between the calculated results and the experimental investigations shows that the present modeling can finely describe the experimental information of the NbSiMo ternary system.
AB - Based on the experimental isothermal sections at 800, 1000, 1700 and 1800 °C and the liquidus projections from both the literature and the present measurements, the ternary NbSiMo system is thermodynamically assessed using the Calculation of Phase Diagram method (CALPHAD). The constituent MoSi binary system is reassessed according to its related binary experimental data. The sublattice model of the phase Nb5Si3 in the constituent NbSi binary system is modified as (Nb)0.5(Nb,Si)0.125(Nb, Si)0.375, in order to give the solid phase β(Nb,Mo)5Si3 in the NbSiMo ternary system a better description. The parameters of the thermodynamic descriptions of the NbSiMo ternary system are optimized following the reported NbMo, the modified NbSi and the reassessed MoSi binary systems. The comparison between the calculated results and the experimental investigations shows that the present modeling can finely describe the experimental information of the NbSiMo ternary system.
KW - CALPHAD
KW - NbSiMo system
KW - Phase diagram
KW - Thermodynamic assessment
UR - https://www.scopus.com/pages/publications/77956618423
U2 - 10.1016/j.calphad.2010.07.003
DO - 10.1016/j.calphad.2010.07.003
M3 - 文章
AN - SCOPUS:77956618423
SN - 0364-5916
VL - 34
SP - 363
EP - 376
JO - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
JF - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
IS - 3
ER -