论文部分内容阅读
本文从三元系 Spinodal 分解的热力学判据,G_(xx)(δX)~2+2G_(xy)δXδy+G_(yy)(δy)~2<0出发,分析讨论了 Cu-Ni-Sn 三元系合金 Spinodal 分解的热力学问题,利用相应的二元相图及热力学数据,以规则溶液作近似,估算出组元间的交互作用系数,应用计算机计算了不同温度下 Spinodal 分解的成分范围,结果表明计算的化学 Spinodal线均在相应温度的溶解度曲线内侧,对 Cu-15Ni-8Sn 这一合金通过透射电镜观察和 x 光小角散射分析等手段进行了试验验证。
Based on the thermodynamic criterion of Spinodal decomposition of ternary system, we discuss the relationship between Cu-Ni-Sn (δx) ~ 2 + 2G_ (xy) δXδy + G_ Elemental alloy Spinodal decomposition thermodynamic problems, the use of the corresponding binary phase diagram and thermodynamic data to approximate the solution as a rule, to estimate the interaction coefficients between components, the calculation of the composition of Spinodal decomposition of different temperature range, the results The calculated chemical Spinodal lines are inside the solubility curve of the corresponding temperature, and the experimental verification of the Cu-15Ni-8Sn alloy by means of transmission electron microscopy and x-ray small-angle scattering analysis was performed.