Application of numerical inverse method in calculation of composition-dependent interdiffusion coefficients in finite diffusion couples

Authors

  • Yuanrong Liu Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha; China National South Aviation Industrial Co., Ltd., Zhuzhou
  • Weimin Chen Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha
  • Jing Zhong Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha
  • Ming Chen Department of Energy Conversion and Storage, Technical University of Denmark, Roskilde
  • Lijun Zhang Science and Technology on High Strength Structural Materials Laboratory, Central South University, Changsha

DOI:

https://doi.org/10.30544/308

Keywords:

Diffusion, Interdiffusion coefficient, Numerical inverse method, Finite diffusion couple

Abstract

The previously developed numerical inverse method was applied to determine the composition-dependent interdiffusion coefficients in single-phase finite diffusion couples. The numerical inverse method was first validated in a fictitious binary finite diffusion couple by pre-assuming four standard sets of interdiffusion coefficients. After that, the numerical inverse method was then adopted in a ternary Al-Cu-Ni finite diffusion couple. Based on the measured composition profiles, the ternary interdiffusion coefficients along the entire diffusion path of the target ternary diffusion couple were obtained by using the numerical inverse approach. The comprehensive comparisons between the computations and the experiments indicate that the numerical inverse method is also applicable to high-throughput determination of the composition-dependent interdiffusion coefficients in finite diffusion couples.

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Published

2017-09-30

How to Cite

Liu, Yuanrong, Weimin Chen, Jing Zhong, Ming Chen, and Lijun Zhang. 2017. “Application of Numerical Inverse Method in Calculation of Composition-Dependent Interdiffusion Coefficients in Finite Diffusion Couples”. Metallurgical and Materials Engineering 23 (3):197-211. https://doi.org/10.30544/308.

Issue

Vol. 23 No. 3 (2017): Dragana Živković - Memorial Issue

Section

Articles - archived

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Copyright (c) 2017 Lijun Zhang

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