Diffusion coefficients in multiphase Ni80Cr20-Ti system

In this paper, the reactive diffusion in Ni80C20r?Ti ternary system is discussed at 1173K. The couple was prepared and annealed for 100 h. two intermetallic phases two-phase zones occurred, namely: Ti2Ni, TiNi, TiNi+Cr, TiNi3+Cr. Based on experimental results (molar fractions, thicknesses of phases), intrinsic coefficients all components each phase were numerically approximated. Wagner method used pure phases. approximation based generalized Darken methods. presented methods allowed determination effective phase.