Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7955247 | Calphad | 2018 | 10 Pages |
Abstract
Based on the experimental interdiffusion coefficients from our previous work and the critically reviewed experimental diffusivities available in the literature, the atomic mobilities of Co, Ti and V in fcc Co-Ti-V alloys were assessed by means of DICTRA (DIffusion Controlled TRAnsformation) software. Askill's empirical relations were utilized to assess the self-diffusion coefficients of fcc Ti and fcc V. Comprehensive comparisons between the DICTRA-calculated diffusivities and the experimental data indicate that the presently obtained atomic mobilities can reproduce most of the diffusivities in binary and ternary systems. In addition, a further verification on the obtained atomic mobilities was carried out through comparing the DICTRA-simulated concentration profiles/diffusion paths of the diffusion couples with the corresponding experimental ones. This work contributes to the establishment of a kinetic database for multi-component cemented carbide.
Keywords
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Jingfeng Zhang, Yong Du, Yuling Liu, Weibin Zhang, Dandan Liu, Chong Chen,