(中南工業(yè)大學(xué)材料系， 長(zhǎng)沙 410083)
摘 要: 優(yōu)化和計(jì)算了Ni-Zr 二元相圖。液相用締合物模型、端際固溶體用替換溶液模型描述，Ni5Zr 和 Ni10Zr7 則分別選用了(Ni)1(Ni, Va)4(Ni,Zr)1 和 (Ni,Zr)10Zr7 的亞點(diǎn)陣模型。計(jì)算結(jié)果與大部分相圖和熱力學(xué)數(shù)據(jù)相吻合。
關(guān)鍵字: 締合物模型 替換溶液模型 亞點(diǎn)陣模型
（Department of Materials Science and Engineering ,
Central South University of Technology,Changsha 410083）
Abstract:Optimization and calculation of the phase diagram of Ni-Zr binary system were presented. Associate model and substitute solution model were used to describe liguid and teminal solution phases respec-
tively. As to the intermediate compounds Ni5Zr and Ni10Zr7, sublattice model (Ni)1( Ni,Va)4(Ni,Zr)1 and (Ni, Zr)10Zr7 were selected. Both calculated phase diagram and thermodynamic properties agree well with most of relative experimental data.
Key words: associate model substitute solution model sublattice model
