高温合金
相图
热力学
吉布斯自由能
二进制数
组分(热力学)
相(物质)
材料科学
代表(政治)
基础(拓扑)
统计物理学
细胞自动机
数学
化学
物理
微观结构
冶金
算法
数学分析
算术
有机化学
政治
政治学
法学
作者
Srinivasan Raghavan,Gaurav Singh,Sanjay Sondhi,S. Srikanth
标识
DOI:10.1016/j.calphad.2012.04.003
摘要
A novel method for the representation of multi-component thermodynamics through a pseudo-binary system without any major assumption is presented. Pseudobinary phase diagrams have been constructed for three representative Ni-base superalloys. Expressions for the Gibbs energy of the different phases as a function of the pseudo-binary composition and temperature have been derived. The information derived from the pseudo-binary phase diagrams and Gibbs energy of the various phases represented through pseudo-binary compositions is applied to (a) solidification calculations for determination of dendrite arm spacing using cellular automata model and (b) phase field calculations.
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