Precipitation Prediction and Experimental Clarification of Mg-Al-Sn System

Jin Young Kim; Eun Jung Kim; Jeong Whan Han

doi:10.4028/www.scientific.net/MSF.620-622.295

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Effect of Deformation Parameters on Deformation Behavior of Ti14 Alloy during Semi-Solid Compression
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Effect of CaO Addition on High Temperature Tensile Properties of Mg Casting Alloys
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Precipitation Prediction and Experimental Clarification of Mg-Al-Sn System
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Electrical Property Characterization of Plasma Sprayed Polycrystalline Silicon
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HomeMaterials Science ForumMaterials Science Forum Vols. 620-622Precipitation Prediction and Experimental...

Precipitation Prediction and Experimental Clarification of Mg-Al-Sn System

Abstract:

Phase equilibrium of the Mg-Al-Sn alloy system was calculated in detail by utilizing phase diagram calculation commercial package and other thermodynamic data for Mg alloys. The calculated phase diagrams were compared with the DSC results for the alloys of Mg-3wt%Al-3wt%Sn. The solidification and precipitation process of Mg-3wt%Al-Xwt%Sn were analyzed. The detailed comparison strongly supports the reliability of the selected thermodynamic description based on the results of thermodynamic calculation. It is clarified that when the Mg-Al-Sn alloy ends its solidification and cools down continuously, the phase Mg2Sn precipitated first from solid solution of magnesium, and then the Mg17Al12 phase precipitated at relative lower temperature. This is shown that the calculation phase diagram method considerably reduces the effort of alloy design and that the reliability of the results is high.