1. Hot-Extruded Microstructure and Mechanical Properties of Mg-Al-Sn Alloys
- Author
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Hyeon Taek Son, Youngmo Kim, Soon Sub Park, Seul Ki Park, and Jae Seol Lee
- Subjects
Radiation ,Materials science ,Phase (matter) ,Ultimate tensile strength ,Metallurgy ,General Materials Science ,Grain boundary ,Extrusion ,Deformation (engineering) ,Condensed Matter Physics ,Microstructure ,Grain size ,Eutectic system - Abstract
The microstructure of as-cast Mg-xAl-2Sn alloys consists of an α-Mg matrix, a Mg17Al12 eutectic phase and a Mg2Sn phase. In as-cast alloys, the Mg17Al12 eutectic phase was located at along grain boundaries. The eutectic phase of the extruded alloys was elongated in the extrusion direction and crushed into fine particles because of deformation during hot extrusion, and the grain size was refined with an increased Al content. The maximum values of the yield strength and tensile strength were 240 MPa and 300 MPa at 9 wt.% containing Al element, respectively.
- Published
- 2010
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