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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 6    No. 4    December 1996

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ESTABLISHMENT AND APPLICATIONS OF MATHEMATICAL MODELS FOR CONCENTRATION DISTRIBUTION IN Mo-Fe-Ni-Co DIFFUSION QUARTERNARY
 (Ⅱ) Characteristics and Applications of Mathematical Models
Xu Xingyao1 Gan Weiping2

1.Department of Applied Mathematics and Applied Softwares,Central South University of Technology, Changsha 410083
2.Department of Materials Science and Engineering,Central South University of Technology, Changsha 410083

Abstract:The characteristics of the mathematical models for concentration distributions such as smoothing property, approximation, tangency, shape preserving property and coordination were analysed, and application examples of the mathematical models were given. The results show that the equilibrium compositions of all components at any point on the two-dimensional plane of the Mo-Fe-Ni-Co diffusion quarternary can be calculated by means of the above mentioned mathematical models, and that the combination of the multi-component diffusion couple technique with the above models can be used to deal with diffusion problems and phase diagram calculation.

 

Key words: concentration diffusions mathematical models phase diagram calculations diffusion

ISSN 1672-7029
CN 43-1423/U

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