预变形对6061-T6铝合金汽车筋板低温性能的影响  

Effects of pre-deformation on the properties at low temperature of the stiffened plates of 6061-T6 aluminum alloy for automobile

作　　者：陈文波[1] CHEN Wen-bo(Foshan Polytechnic, Foshan 528137, China)

机构地区：[1]佛山职业技术学院汽车工程系,广东佛山528137

出　　处：《轻合金加工技术》2017年第10期29-32,共4页Light Alloy Fabrication Technology

基　　金：广东省高等职业教育品牌专业和特色专业建设项目(粤教高函(2015)191号)

摘　　要：采用不同预变形量对6061-T6铝合金汽车筋板进行处理,研究了预变形对筋板低温冲击性能和低温拉伸性能的影响。结果表明,预变形处理有助于提高筋板的低温冲击性能和低温拉伸性能。随预变形量的增大,筋板的低温冲击吸收功、低温抗拉强度和低温屈服强度均先增大后基本不变再减小。筋板的预变形量优选为7.5%~10%。The effect of pre-deformation on the impact and tensile properties at low temperature of the stiffened plates of 6061-T6 aluminum alloy for automobile was studied when the plates were treated with various pre-deformation amounts. The results show that pre-deformation is conductive to improve the impact and tensile properties of the stiffened plates at low temperature. As the pre-deformation amount increases, the impact absorption energy, tensile strength and yield strength at low temperature first increase, then remain almost unchanged, and decrease at last. The optimized pre-deformation amount is 7.5% - 10%.

关 键 词：预变形 铝合金筋板 低温冲击性能 低温拉伸性能 预变形量 

分 类 号：TG146.21[一般工业技术—材料科学与工程]