Article ID Journal Published Year Pages File Type
1610161 Journal of Alloys and Compounds 2015 8 Pages PDF
Abstract
The effect of Al additions on grain refinement and mechanical properties of Mg-Sm alloys has been investigated. The addition of 3 wt.% Al led to significant grain refinement of Mg-xSm (x = 4, 6 and 8 wt.%) alloys due to the formation of Al2Sm particles which acted as active nucleant particles for the Mg matrix. An orientation relationship (1¯11)Al2Sm//(0002)Mg,[1¯2¯1]Al2Sm//[112¯0]Mg,[01¯1]Al2Sm//[011¯0]Mg was reproducibly observed between α-Mg and Al2Sm. Furthermore, the Mg-4Sm alloy refined by Al additions had higher ultimate tensile strength and elongation than that refined by Zr which is considered as the most potent grain refiner for Mg alloys.
Related Topics
Physical Sciences and Engineering Materials Science Metals and Alloys
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