Microstructure and mechanical properties of an indirect-extruded Mg-8Sn-1Al-1Zn alloy |
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Authors: | SS Park WN Tang BS You |
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Affiliation: | Korea Institute of Materials Science (KIMS), Changwon 641-831, Republic of Korea |
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Abstract: | The microstructure and mechanical properties of an indirect-extruded Mg-8Sn-1Al-1Zn (TAZ811) alloy were investigated and compared with those of a commercial Mg-3Al-1Zn (AZ31) alloy. In the extruded condition, the TAZ811 alloy shows a much smaller grain size but a stronger basal texture than the AZ31 alloy. In addition, the TAZ811 alloy contains fine Mg2Sn particles in the microstructure, whereas the AZ31 alloy reveals relatively coarse and sparse Al-Mn particles. The TAZ811 alloy showed tensile and compressive strengthening as well as a reduction in yield asymmetry between tension and compression, which is mainly due to grain refinement and the presence of fine Mg2Sn particles. |
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Keywords: | Metals and alloys Magnesium Extrusion Microstructure |
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