کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1558989 | 1513824 | 2012 | 7 صفحه PDF | دانلود رایگان |
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.
► An improved method to represent multi-component system through a pseudo-binary system.
► Construction of pseudo-binary phase diagrams for Ni-base superalloys.
► Use of pseudo-binary models to simulate microstructure evolution in CA and phase field.
Journal: Calphad - Volume 38, September 2012, Pages 85–91