Journal of Phase Equilibria and Diffusion

, Volume 37, Issue 3, pp 269–276 | Cite as

Interdiffusion and Atomic Mobility Studies in Ni-Rich fcc Ni-Co-Al Alloys

Article
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Abstract

The ternary interdiffusion coefficients in fcc Ni-Co-Al alloys at 1373 K were determined using Whittle and Green method together with electronic-probe microanalysis. With the help of DICTRA software, the experimental diffusion coefficients were critically assessed to obtain the atomic mobilities of Ni, Co and Al in fcc Ni-Co-Al alloys. Comprehensive comparisons between calculated and experimental diffusion coefficients showed that the experimental data could be well reproduced by the atomic mobilities obtained in the present work. The developed diffusion mobilities were further validated by the calculation of the concentration profiles and diffusion paths in diffusion couples.

Keywords

atomic mobility DICTRA diffusion couple interdiffusion coefficients Whittle and Green method 
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Notes

Acknowledgment

This work thanks the support from the Industry-university research project of Aviation Industry Corporation of China (No. CXY2014XD27), the Fundamental Research Funds for the Central Universities (No. 20720140511), Ministry of Science and Technology of China (Grant No. 2014DFA53040) and the National Natural Science Foundation of China (No. 51201145, and No. 51301146).

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Copyright information

© ASM International 2016

Authors and Affiliations

  1. 1.Department of Materials Science and Engineering, Fujian Key Laboratory of Materials Genome, College of MaterialsXiamen UniversityXiamenPeople’s Republic of China
  2. 2.Department of AeronauticsXiamen UniversityXiamenPeople’s Republic of China

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