Anisotropic Diffusion Behaviour of Al and Zn in HCP Mg: Diffusion Couple Experiment Using Mg Single Crystal

Sazol Kumar Das; Young Min Kim; Tae Kwon Ha; Raynald Gauvin; In Ho Jung

doi:10.4028/www.scientific.net/MSF.765.516

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HomeMaterials Science ForumMaterials Science Forum Vol. 765Anisotropic Diffusion Behaviour of Al and Zn in...

Anisotropic Diffusion Behaviour of Al and Zn in HCP Mg: Diffusion Couple Experiment Using Mg Single Crystal

Abstract:

Diffusion couple experiments for Mg-Al and Mg-Zn were carried out with Mg single crystal to determine the anisotropic diffusion coefficients of Al and Zn in hcp Mg at the temperature range between 553 and 693 K. Based on the experimental results, anisotropic diffusion coefficients of Al and Zn were calculated using multiphase diffusion simulations. Al diffusion in hcp Mg is slightly faster than Mg self-diffusion itself, but the diffusion of Zn is slightly slower than Mg self-diffusion. The diffusion coefficients of Al and Zn along the a-axis (basal plane) of hcp Mg is slightly higher (1.1-1.4 times) than those along the c-axis (normal to the basal plane), which is also similar to Mg self-diffusion behaviour.

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Periodical:

Materials Science Forum (Volume 765)

Pages:

516-520

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.765.516

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Online since:

July 2013

Authors:

Sazol Kumar Das, Young Min Kim, Tae Kwon Ha, Raynald Gauvin, In Ho Jung

Keywords:

Aluminum (Al), Diffusion Coefficient, Diffusion Couple Experiment, Mg Alloy, Single Crystal, Zn

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