Strong strain hardening ability in an as-cast Mg-3Al-3Sn alloy

作者：Wang Hui Yuan; Nan Xiao Long; Zhang Nan; Wang Cheng; Wang Jin Guo^*; Jiang Qi Chuan

来源：Materials Chemistry and Physics, 2012, 132(2-3): 248-252.

DOI：10.1016/j.matchemphys.2011.12.036

• Alloys
• Mechanical properties
• Ductility
• Ab initio calculations

As-cast Mg-3Al-3Sn (AT33) alloy exhibits strong strain hardening ability, which is illustrated by the very high H-c and n values. Decrease in generalized stacking fault (GSF) energies in AT33 alloys by Al and Sn additions facilitates the production of dislocations and activation of deformation twins, causing the accumulation of dislocations at twin boundaries, resulting in a high dislocation density in deformed alloys during tension deformation, which thereby mainly accounts for the strong strain hardening ability.

• 出版日期2012-2-15
• 单位吉林大学