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First Reliable Diffusion Coefficients for Mg-Y and Additional Reliable Diffusion Coefficients for Mg-Sn and Mg-Zn

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Abstract

Forward-simulation analysis was performed on composition profiles collected from liquid-solid and solid-solid diffusion couples to obtain diffusion coefficients of Mg-Sn, Mg-Y, and Mg-Zn. Reliable impurity diffusion coefficient of Y in Mg is obtained for the first time, showing that Y diffusion in Mg is about the same as Sn below 390 °C. The first sets of interdiffusion coefficients of Mg-Sn and Mg-Y are also obtained together with wider temperature-range data for Mg-Zn.

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The authors are thankful to Professor Alan Luo, Dr. Weihua Sun, Dr. Bi-Cheng Zhou, and Dr. Qiaofu Zhang for valuable discussions; to Dr. S.K. Das and Professor I.H. Jung for providing their original diffusion profiles; and to Ms. Julie Chouinard and Dr. John Donovan at University of Oregon for careful EPMA measurements. This study was supported by the Vehicle Technology Program of the Office of Energy Efficiency and Renewable Energy (EERE) of the U.S. Department of Energy under contract number DE-EE0006450 with Dr. William Joost as the Program Manager.

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  1. Department of Materials Science and Engineering, The Ohio State University, 2041 College Road, Columbus, OH, 43210, USA

    Wei Zhong & Ji-Cheng Zhao

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  1. Wei Zhong
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  2. Ji-Cheng Zhao
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Correspondence to Ji-Cheng Zhao.

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Manuscript submitted July 16, 2017.

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Zhong, W., Zhao, JC. First Reliable Diffusion Coefficients for Mg-Y and Additional Reliable Diffusion Coefficients for Mg-Sn and Mg-Zn. Metall Mater Trans A 48, 5778–5782 (2017). https://doi.org/10.1007/s11661-017-4378-1

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  • DOI: https://doi.org/10.1007/s11661-017-4378-1

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