Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7995655 | Journal of Alloys and Compounds | 2016 | 5 Pages |
Abstract
In this paper the interdiffusion process and Frenkel effect (Kirkendall porosity) are studied in Ni-Cu and NiAl-Cu systems at 1273Â K. The generalized Boltzmann-Matano method is used for calculation of the intrinsic diffusion coefficients as a polynomial function in the whole composition range. The calculated interdiffusion coefficient in Cu-Ni diffusion couple decrease with increasing Ni content. The total decrease of interdiffusion coefficient exceeds two orders of magnitude. The equation for the void growth rate is obtained. The experimental results of diffusion and voids formation are analyzed. The voids radii is estimated and compared with experiments.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Bartek Wierzba, Wojciech SkibiÅski,