Interdiffusion and Atomic Mobility for Face-Centered-Cubic Co-Al Alloys |
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| Authors: | Y.-W. Cui B. Tang R. Kato R. Kainuma K. Ishida |
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| Affiliation: | (1) Computational Alloy Design Group, IMDEA Materials Institute, Madrid, 28040, Spain;(2) State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an, 710072, People’s Republic of China;(3) Department of Materials Science, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan |
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| Abstract: | Interdiffusion in the face-centered-cubic (fcc) Co-Al binary alloys was studied by the diffusion-couple approach in the temperature range of 1173 K to 1573 K (900 °C to 1300 °C). Interdiffusion coefficients of the fcc Co-Al alloys were then evaluated by using the Sauer–Freise method. The effect of magnetic ordering on the Co-Al interdiffusion was observed at 1273 K (1000 °C) by examining the Arrhenius plots. The interdiffusion data were assessed to develop the atomic mobility for the fcc Co-Al alloys, and their validity was tested by simulating the diffusion-couple experiments. |
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