Effect of Calcium on Solidification Behavior of Mg-Sn Based Alloys
The effect of Ca addition on microstructure change, precipitation behaviours and mechanical properties, in the present work, of Mg-Sn based alloys were investigated. With increasing of Ca additions, size of the Mg-Sn-Ca ternary phases (A-type) with fine needle shape was decreased and volume fraction of these phase were increased. As Ca was increase from 1 wt.%, 2 wt.%, size and volume fraction of Mg2Sn with coarse needle shape phase (B-type) was increased. However, in 3 wt.% Ca containing alloy, size of these Mg2Sn phase was smaller than that of 2 wt% Ca addition alloy and volume fraction of these phase was decreased.
Hyungsun Kim, JienFeng Yang, Tohru Sekino and Soo Wohn Lee
D. G. Kim et al., "Effect of Calcium on Solidification Behavior of Mg-Sn Based Alloys", Materials Science Forum, Vols. 620-622, pp. 169-172, 2009