The Influence of Strontium on the Microstructure of Cast Magnesium Alloys Containing Aluminum and Calcium

Bartlomiej Dybowski; Tomasz Rzychoń; Bartosz Chmiela

doi:10.4028/www.scientific.net/KEM.607.37

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 607The Influence of Strontium on the Microstructure...

The Influence of Strontium on the Microstructure of Cast Magnesium Alloys Containing Aluminum and Calcium

Abstract:

The influence of strontium addition on the microstructure of a Mg-9Al-2Ca alloy was investigated. The microstructure of Mg-9Al-2Ca-xSr alloys consists of α-Mg, (Mg,Al)₂Ca with C15 structure, Al₄Sr and Al_xMn_y phases. The addition of strontium decreases the grain size of the α-Mg phase and decreases the aluminum content dissolved in the α-Mg solid solution. Moreover, the volume fraction of the Al₄Sr phase increases with increasing strontium content. Strontium does not influence on the volume fraction of (Mg,Al)₂Ca phase.

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Periodical:

Key Engineering Materials (Volume 607)

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37-42

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.607.37

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Online since:

April 2014

Authors:

Bartlomiej Dybowski*, Tomasz Rzychoń, Bartosz Chmiela

Keywords:

EBSD, Mg-Al-Ca-Sr Alloys, Phase Identification, Quantitative Analysis, XRD

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