Influence of heat treatment on microstrudture and mechanical properties of AZ31B magnesium alloy prepared by solid-state recycling
This work is to study the influence of heat treatment on microstrudture and mechanical properties of AZ31B magnesium alloy prepared by solid-state recycling.AZ31B magnesium alloy chips were recycled by hot extruding.Three different heat treatments were conducted for recycled alloy.Mechanical properties and microstructure of the recycled specimen and heat treated specimen were investigated.300℃×2h annealing specimen exhibits finer grain due to static recrystallization,and microstructure of 400℃×2h annealing specimen becomes more coarse.300℃×2h annealing treatment improves obviously strength and ductility of recycled alloy.Ultimate tensile strength of alloy decreases and elongation to failure increases after 400℃×2h annealing.Grain size,dislocation density and bonding of chips have an effect on the elongation of recycled materials.190℃×8h ageing has no influence on microstructure and mechanical properties of recycled alloy.
AZ31B magnesium alloy solid-state recycling heat treatment microstructure mechanical property
WU Shuyan JI Zesheng TIAN Chunying WU Mingzhong
School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007,China School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150
国际会议
香港
英文
17-20
2012-12-11（万方平台首次上网日期，不代表论文的发表时间）