摘要
对6063铝合金挤压板材进行搅拌摩擦加工,研究多道次搅拌摩擦加工和时效热处理对该合金的宏观形貌、显微组织、显微硬度和拉伸强度的影响。结果表明:搅拌摩擦加工能够显著的细化晶粒,随着搅拌摩擦加工道次的增加,搅拌区晶粒尺寸越小,组织越均匀,其中五道次的效果最佳。一、三、五道次的搅拌区硬度基本相同。经过180弋时效处理后,搅拌区硬度大幅提升。
The effects of multi - pass friction stir processing and aging heat treatment on macroscopic morphology, microstructure, microhardness and tensile strength of extruded 6063 aluminum alloy sheets processed by friction - stir method was investigated. The results show that FSP has a significant grain refinement effect on the 6063 Al alloy. The smaller grain size is, the more uniform the structure in the stirring zone becomes with the increase of the processing pass, among which five passes are the best. The hardness of first, third and fifth passes is basically the same. After aging treatment at 180 弋,the hardness of the stirring zone is significantly increased.
作者
汪伟
周士昂
王振
李亨
吴玉程
Wang Wei;Zhou Shiang;Wang Zhen;Li Heng;Wu Yucheng(Institute of Industry & Equipment Technology,Hefei University of Technology,Hefei 230009 ,China;School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009 ,China;Anhui Provincial Key Lab of Aerospace Structural Parts Forming Technology and Equipment,HefeiUniversity of Technology,Hefei 230009,China)
出处
《轻金属》
北大核心
2019年第7期65-69,共5页
Light Metals
基金
国家自然科学青年科学基金(‘51605128’、‘JZ2017GJQN1020’)
关键词
6063铝合金
搅拌摩擦加工
多道次
时效热处理
6063 aluminum alloy
friction stir processing
multi - pass
aging heat treatment
