Multiphase Ni-Cr-Al Diffusion: Experiment and Simulations
Interdiffusion in two-phase Ni-Cr-Al diffusion couple was studied experimentally and simulated numerically. The diffusion multiples were prepared by hot isostatic pressing, HIP and post-annealing at 1200°C. The concentration profiles were measured with wide line EDS technique – a method suitable to study multiphases. Hence the diffusion paths were determined. The experimental profiles and diffusion paths were compared with numerical results simulated with application of the Darken bi-velocity method implemented to describe interdiffusion in a two-phase zone.
A. Öchsner, G.E. Murch, A. Shokuhfar and J.M.P.Q. Delgado
M. Zajusz et al., "Multiphase Ni-Cr-Al Diffusion: Experiment and Simulations", Defect and Diffusion Forum, Vol. 369, pp. 77-82, 2016