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Interdiffusion and Atomic Mobilities of fcc Co-V-Mo Alloys: Measurement and Modeling

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Abstract

Based on 18 bulk diffusion couples, the composition-dependent interdiffusion coefficients in the fcc Co-V-Mo alloys at 1273, 1373 and 1473 K were obtained from the intersection points of the diffusion couples by means of EPMA technique coupled with the Whittle and Green method. With the experimentally determined interdiffusion coefficients and the critically reviewed experimental diffusivities available in the literature, the atomic mobilities of fcc Co-V-Mo alloys were assessed by means of Diffusion Controlled Transformation (DICTRA) software. The quality of the assessed atomic mobilities was confirmed by the comprehensive comparisons between various DICTRA-calculated diffusion behaviors and the experimental ones, including concentration profiles and diffusion paths.

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Acknowledgment

This work was supported by the National Key Research and Development Program of China (Grant No. 2016YFB0701301).

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Authors and Affiliations

  1. State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, Hunan, China

    Jingfeng Zhang, Yuling Liu, Yong Du, Shuhong Liu & Jianchuan Wang

Authors
  1. Jingfeng Zhang
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  2. Yuling Liu
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  3. Yong Du
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  4. Shuhong Liu
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  5. Jianchuan Wang
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Corresponding authors

Correspondence to Yuling Liu or Yong Du.

Additional information

This invited article is part of a special issue of the Journal of Phase Equilibria and Diffusion in honor of Prof. Zhanpeng Jin’s 80th birthday. The special issue was organized by Prof. Ji-Cheng (JC) Zhao, The Ohio State University; Dr. Qing Chen, Thermo-Calc Software AB; and Prof. Yong Du, Central South University

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Zhang, J., Liu, Y., Du, Y. et al. Interdiffusion and Atomic Mobilities of fcc Co-V-Mo Alloys: Measurement and Modeling. J. Phase Equilib. Diffus. 39, 623–634 (2018). https://doi.org/10.1007/s11669-018-0663-y

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  • DOI: https://doi.org/10.1007/s11669-018-0663-y

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