化学成分和挤压工艺对6005A铝合金粗晶组织的影响  

Effect of chemical compositions and the extrusion process on the coarse grain of 6005A aluminum alloy

作　　者：李飞庆[1] 卢祥丰 李飞龙[1] 谢尚昇[1] 赵茂密[1] 刘志伟[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》2015年第7期38-42,共5页Light Alloy Fabrication Technology

摘　　要：通过金相显微分析、拉伸试验等方法,研究了化学成分和挤压工艺对地铁用6005A铝合金型材粗晶组织和力学性能的影响。结果表明,通过优化铸棒化学成分和挤压工艺,可将地铁用6005A铝合金型材粗晶层厚度明显减小,同时获得优良的力学性能。Metallographic analysis and the tensile test are used to study the effect of chemical compositions and the extrusion process on the coarse grain and mechanical performance of 6005 A aluminum alloy profile for subway. The results show that the coarse grain thickness is evidently decreased and the mechanical performance becomes better with optimized chemical compositions and the upgraded extrusion process.

关 键 词：6005A铝合金 化学成分 挤压工艺 粗晶组织 

分 类 号：TG379[金属学及工艺—金属压力加工]