均匀化处理对6005A铝合金轨道交通型材组织和力学性能的影响  

Effect of homogenization treatment on microstructure and mechanical properties of 6005A aluminum alloy rail transit profile

作　　者：彭自业 赵茂密[1] 姜小龙[1] 兰天虹[1] 白文全[1] 

机构地区：[1]广西南南铝加工有限公司,广西南宁530031

出　　处：《轻合金加工技术》2017年第3期31-34,共4页Light Alloy Fabrication Technology

基　　金：广西科学研究与技术开发项目(1598001-3)

摘　　要：采用金相显微分析、拉伸试验等方法,研究了铸锭均匀化处理对6005A铝合金轨道交通型材力学性能的影响。结果表明,铸锭均匀化处理能使铸态组织内大部分粗大的第二相重溶,提高基体中强化元素的过饱和程度,保证挤压型材时效后的力学性能。The effect of homogenization treatment on microstructure and mechanical properties of 6005A aluminum alloy rail transit profiles were investigated with metallographic microscopy analysis and tensile test. The results indicate that most of the coarse second phases in the as-cast alloys are dissolved through homogenization treatment, supersaturation of strengthening elements is increased in the billets, and mechanical properties of extrusion profiles are improved as a result.

关 键 词：6005A铝合金 均匀化处理 显微组织 力学性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG292[金属学及工艺—金属材料]