Effect of Silver Additions on the Ageing Behavior and Mechanical Properties of Mg-Al-Si-Sn-Sr Alloy

S.W. Lee; Byung Ho Kim; K.Y. Nam; Dae Hyun Song; Kyung Mok Cho

doi:10.4028/www.scientific.net/SSP.124-126.1469

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HomeSolid State PhenomenaSolid State Phenomena Vols. 124-126Effect of Silver Additions on the Ageing Behavior...

Effect of Silver Additions on the Ageing Behavior and Mechanical Properties of Mg-Al-Si-Sn-Sr Alloy

Abstract:

Mg is one of the most promising structural materials for lightweight applications due to its low density, good castability and damping capacity. In this study, we investigated the effect of silver (Ag) addition on alloy ageing behavior and mechanical properties of Mg-Al-Si-Sn-Sr-Ag alloys with variation of Ag contents (0.1, 0.5, 1.0, 2.0wt%). The ageing kinetics of Ag added alloys was determined and affected by Ag addition. Although the precipitation of platelets of Mg17Al12 within α-Mg matrix was not significantly affected by the silver, mechanical properties such as hardness and tensile properties were improved with increasing Ag contents.