The microstructure, tensile properties, and creep behavior of as-cast Mg-(1-10)% Sn alloys

The microstructure, tensile properties, and creep behavior of M-(1-10)wt%Sn alloys were studied in this paper. The microstructure of as cast Mg-Sn alloys consisted of dendrite alpha-Mg and second Mg2Sn phases and the secondary dendrite arm spacing (DAS) of the alpha-Mg phase was decreased with the increase of tin content. The micro-hardness of the alloys increased when tin content rises, while the greatest tensile and elongation were exhibited by Mg-5 wt%Sn. The indentation creep experiments were conducted at 150 degrees C for applied loads of 30 kg, it suggested that the indentation creep resistance of Mg-Sn alloys could be obviously improved with the increase of tin content, and Mg-10%Sn alloy had better indentation creep resistance than that of AE42. (c) 2006 Elsevier B.V. All rights reserved.