Modification of Mg2Si Morphology in As-Cast Mg-Al-Si Alloys with Strontium and Antimony

The effects of antimony (Sb) and strontium (Sr) additions on the microstructure of Mg-Al-Si alloys were studied. The results show that the additions of Sb and Sr can modify the Mg2Si particles from Chinese script shape to refined polygonal shape. Tensile strength and creep resistance are improved, a...

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Veröffentlicht in:Materials Science Forum 2006-03, Vol.510-511, p.238-241
Hauptverfasser: Song, Dae Hyun, Park, Ik Min, Nam, K.Y., Park, Yong Ho, Lee, C.W., Lee, S.W., Cho, Kyung Mok
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Sprache:eng
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Zusammenfassung:The effects of antimony (Sb) and strontium (Sr) additions on the microstructure of Mg-Al-Si alloys were studied. The results show that the additions of Sb and Sr can modify the Mg2Si particles from Chinese script shape to refined polygonal shape. Tensile strength and creep resistance are improved, and tensile elongation is also increased in the modified alloy. Sr modification is more effective than Sb modification of AS52 alloy for refining the microstructure and thus improving its properties.
ISSN:0255-5476
1662-9752
1662-9752
DOI:10.4028/www.scientific.net/MSF.510-511.238