AZ31电磁连铸锭的热处理  

Heat Treatment of Electromagnetic Continuous Casting AZ31 Magnesium Slab

作　　者：庞磊[1] 张兴国[1] 任政[1] 齐国红[1] 隋里[1] 金俊泽[1] 

机构地区：[1]大连理工大学铸造研究中心

出　　处：《特种铸造及有色合金》2009年第1期45-48,共4页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(50475157);教育部基础研究重点资助项目(105052)

摘　　要：研究了固溶处理、时效处理以及固溶+时效处理对AZ31镁合金电磁连铸锭组织性能的影响。结果表明,铸锭的各种热处理状态对其组织和力学性能均有不同程度的影响。固溶处理后铸锭的硬度与韧性均有所增加;时效处理后铸锭硬度增加,韧性有所下降;固溶+时效处理后铸锭硬度值(HB)达到51.52,冲击吸收功为3.40J。固溶处理下得到了较优化的热处理工艺,铸锭的冲击吸收功值和硬度值(HB)分别达到3.75J和51.60。Effects of solution treatment, aging treatment and solution +aging treatment on microstructure and properties of electromagnetic continuous casting AZ31 magnesium alloy slab were investigated. The results indicate that microstructure and properties of the slab are related to different heat treatment processes. Hardness and ductility of solution treated slab are increased, while hardness of the aged slab is increased with the decrease of ductility. Meanwhile, hardness and impact absorption power of the slab treated by solution + aging treatment reach 51.52 and 3.40J, respectively. The impact absorption power and hardness of slab treated by an optimized heat treatment can reach 3.75J and 51.60, respectively.

关 键 词：AZ31 电磁连铸 热处理 组织 力学性能 

分 类 号：TG146.22[一般工业技术—材料科学与工程] TG249.7[金属学及工艺—金属材料]