ESTABLISHMENT AND APPLICATIONS OF MATHEMATICAL MODELS FOR CONCENTRATION DISTRIBUTIONS IN Mo-Fe-Ni-Co DIFFUSION QUARTERNARY
(Ⅰ) Establishment of Mathematical Models
(Ⅰ) Establishment of Mathematical Models
(1.Department of Materials Science and Engineering,Central South University of Technology, Changsha 410083
2.Department of Applied Mathematics and Applied Softwares,Central South University of Technology, Changsha 410083)
2.Department of Applied Mathematics and Applied Softwares,Central South University of Technology, Changsha 410083)
Abstract: By means of a Mo-Fe-Ni-Co diffusion quarternary and the B-type spline functions, the mathematical models of the components have been established on the two-dimensional plane of the diffusion quarternary for the six single-phase regions δ-MoNi,P,μ-Fe7Mo6,bcc(Fe),bcc(Mo) and fcc in the Mo-Fe-Ni ternary system, and for the four single-phase regions δ-MoNi,μ-Co7Mo6,bcc(Mo) and fcc in the Mo-Ni-Co ternary system.
Key words: Mo-Fe-Ni-Co diffusion quarternary mathematical models concentration distribution B-type spline functions