在线淬火对6061、6005铝合金型材组织与性能的影响  

Effect of on-line quenching on microstructure and mechanical properties of 6061 and 6005 alloy profile

作　　者：李彩文[1] 潘学著 刘露露[1] 曹望[1] 李彩华 袁玉宝 王孟君[1] 

机构地区：[1]中南大学有色金属材料科学与工程教育部重点实验室,湖南长沙410083 [2]广亚铝业有限公司,广东佛山528237

出　　处：《金属热处理》2010年第6期59-62,共4页Heat Treatment of Metals

基　　金：广东省重大科技专项(2009A080205003);中南大学2009年"大学生创新创业启航行动"创新项目(CX43)

摘　　要：通过拉伸试验,结合金相、SEM、EDS等分析方法,研究了不同在线淬火冷却速度对6061、6005铝合金型材组织与性能的影响。结果表明,随着在线淬火冷却速度的增大,6061铝合金型材的抗拉强度由空冷的223.27 MPa提高到水冷的279.67MPa,6005铝合金型材则由260.56 MPa提高到298.66 MPa,而伸长率下降均不到1%;冷却速度对型材组织的影响不明显;6061铝合金较6005铝合金对淬火冷却速度更为敏感。The effect of different cooling rate on microstructure and mechanical properties of 6061 and 6005 aluminum alloys profile were determined by tensile test,metallographic examination,SEM and ESD analysis.The results show that the increase of cooling rate on-line quenching leads to improvement of material strength,the tensile strength of 6061 alloy is 223.27 MPa by air-cooling and reach 279.67 MPa by water-cooling,and that of 6005 alloy is from 260.56 MPa to 298.66 MPa.While the elongation is decreased less than 1%both the alloys.The cooling rate of on-line quenching has a small effect on microstructure.The 6061 alloy is more sensitive to cooling rate than the 6005 alloy.

关 键 词：6061铝合金 6005铝合金 在线淬火 冷却速度 

分 类 号：TG166.3[金属学及工艺—热处理]