Article ID Journal Published Year Pages File Type
1559280 Calphad 2009 8 Pages PDF
Abstract

In conjunction with the thermodynamic parameters in the literature, the atomic mobilities of the V–Nb and V–Zr bcc alloys were assessed from experimental diffusion coefficients. The assessed atomic mobilities are given as functions of temperatures and composition in the CALPHAD format. Comparisons between the calculated and experimental quantities show that the obtained mobility parameters enable most of the experimental diffusion data to be well reproduced. Based on the velocity constructions for lattice planes in V/Nb diffusion couples, the displacements of Kirkendall makers were investigated under various annealing conditions, and the results are in general agreement with experimental values. In addition, computational studies of V/Zr diffusion couples were carried out for the kinetic behaviors of V 2Zr at various annealing temperatures, from which the temperature dependence of the interdiffusion coefficients for V 2Zr was evaluated.

Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
Authors
, , , ,