考察了在拉拔过程中A6工业纯铝导线的微观组织演化及力学性能的变化,研究了拉拔变形量对材料微观结构及强度的影响.结果表明,A6工业纯铝的拉伸强度随着拉拔道次的增加呈现三阶段式变化.在拉拔挤压变形下晶粒沿拉拔方向明显伸长,并逐渐形成<111>丝织构.在第Ⅰ阶段晶粒内部位错密度的显著增加强化了铝导线；拉拔产生的严重塑性变形导致铝导线中织构的形成,从而引起导线在第Ⅲ阶段强度的进一步提高.纯铝导线的拉伸断口主要为韧窝型断口.结合微观结构分析,讨论了A6铝导线强度变化规律.
参考文献
| [1] | SU Guanghua,Effect of cold drawing on conductivity of aluminium wire with rare earth,The Chinese Journal of Nonferrous Metals,8,249(1998)(苏光华,拉拔加工对稀土铝导线导电率的影响,中国有色金属学报,8,249(1998)) |
| [2] | LIU Bin,ZHENG Qiu,DANG Peng,ZENG Wei,Development and applications of aluminum alloy in overhead lines,Electric Wire & Cable,4,10(2012)(刘斌,郑秋,党朋,曾伟,铝合金在架空导线领域的应用及发展,电线电缆,4,10(2012)) |
| [3] | LONG Chuanyong,Mechanism of the heat-resistant aluminium alloy conductor and its application in power transmission lines,Electr ic Wire & Cable,4,3(2004)(尤传永,耐热铝合金导线的耐热机理及其在输电线路中的应用,电线电缆,4,3(2004)) |
| [4] | HE Guixiang,JIANG Xuexian,Status and sustainable developing countermeasures of aluminum metallurgy in our country,Metal Materials and Metallurgy Engineering,40(4),55(2012)(何贵香,蒋学先,我国铝冶金的现状与可持续发展对策,金属材料与冶金工程,40(4),55(2012)) |
| [5] | DING Guangxin,SUN Zhusen,ZHANG Qiang,LI Ming,MO Juan,YE Hongsheng,WANG Gang,WAN Jiancheng,Analysis on application of energy-saving conductors in transmission lines,Power System Technology,8,24(2012)(丁广鑫,孙竹森,张强,李明,莫娟,叶鸿声,王钢,万建成,节能导线在输电线路中的应用分析,电网技术,8,24(2012)) |
| [6] | YOU Weiren,MIAO Xiaolin,GU Sunwang,JIN Rong,ZHENG Qiu,LIU Bin,The investigation of fabrication technologies of high-quality aluminum alloy rod,Electric Wire & Cable,3,15(2012)(尤伟任,缪小林,顾孙望,金榕,郑秋,刘斌.高质量铝合金系列杆材制造工艺探讨,电线电缆,3,15(2012)) |
| [7] | T.Kobayashi,Strength and fracture of aluminum alloys,Mater.Sci.Eng.,A,286,333(2000) |
| [8] | YANG Linjiang,XIAO Xuan,PENG Tao,YE Lina,ZHOU Zheng,Microstructure and mechanical properties of pearlite steel wires with different strains,Materials for Mechanical Engineering,36,26(2012)(杨林江,肖玄,彭滔,叶丽娜,周正,不同应变量下珠光体钢丝的组织和力学性能,机械工程材料,36,26(2012)) |
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