Microstructure and mechanical properties of an indirect-extruded Mg-8Sn-1Al-1Zn alloy

作者：Park S S^*; Tang W N; You B S

来源：Materials Letters, 2010, 64(1): 31-34.

DOI：10.1016/j.matlet.2009.09.062

• Metals and alloys
• Magnesium
• Extrusion
• Microstructure

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 Mg(2)Sn 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 Mg(2)Sn particles.

• 出版日期2010-1-15