Title

Al And Zn Impurity Diffusion In Binary And Ternary Magnesium Solid-Solutions

Keywords

Aluminum; Hall method; Impurity diffusion; Magnesium; Zinc

Abstract

Aluminum and zinc are two of the most common alloying elements in magnesium alloys. The present work examines impurity diffusion coefficients of Al and Zn in Mg(Zn) and Mg(Al) binary solid solutions, respectively. Experimental investigation was carried out with diffusion couples of ternary polycrystalline alloys. Concentration profiles were measured by electron microprobe micro-analysis and the impurity diffusion coefficients were determined by the Hall Method. Consistent with the findings of other researchers, Zn impurities diffuse faster than Al impurities in pure Mg and the Zn impurity diffusion coefficient is only slightly affected by the concentration of Al in Mg(Al) solid solutions. Unique to this study is the investigation of the diffusion behavior of Al impurities in Mg(Zn) solid solutions. The activation energy of Al impurity diffusion is strongly influenced by the solute concentration in Mg(Zn) solid solutions.

Publication Date

1-1-2014

Publication Title

Magnesium Technology

Number of Pages

407-411

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1002/9781118888179.ch76

Socpus ID

84899822231 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84899822231

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