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Home > Archive>Volume 49, Issue 12, 2020 >4172-4176. DOI:10.12442/j.issn.1002-185X.20191076
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Computational simulation of diffusion growth behavior of intermetallic compounds in the Mg-Y system
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1.Shandong Provincial Key Laboratory of High Strength Lightweight Metallic Materials,Advanced Materials Institute,Qilu University of Technology Shandong Academy of Sciences,Jinan;2.Shandong Provincial Key Laboratory for Special Silicone-Containing Materials, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences);3.College of Materials Science and Engineering,Shandong Jianzhu University,Jinan

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    Abstract:

    In the Mg-Y base rare earth alloy system, study on the diffusion growth of intermetallic compounds is important due to its close interrelation with property. Based on the experimental data of the formation and growth of intermetallic compounds ε-Mg24Y5 and δ-Mg2Y in the Mg-Y diffuison couples, the interdiffusion coefficients of each phase in the Mg-Y binary alloy system depending on components and temperatures was calculated by numerical inverse method. The results show that the diffusion coefficient of ε-Mg24Y5 is 4 times higher that of δ-Mg2Y. Moreover, the annealing induced element diffusion distribution, diffusion flux and growth thickness of IMC layer with time and temperature can be quantitatively simulated.

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[Jiaxing Sun, Kingming Cheng, Meifang Wang, Guanyu Li, Peiliang Li, Cong Liu, Wei Chu, Wenting Song, Jixue Zhou. Computational simulation of diffusion growth behavior of intermetallic compounds in the Mg-Y system[J]. Rare Metal Materials and Engineering,2020,49(12):4172~4176.]
DOI：10.12442/j. issn.1002-185X.20191076

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History
  • Received:December 20,2019
  • Revised:March 06,2020
  • Adopted:March 19,2020
  • Online: January 13,2021

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