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投稿时间：2017-01-07 修订日期：2017-01-17 录用日期：2017-01-18 网络发布日期：2017-04-20
投稿时间：2017-01-07 修订日期：2017-01-17 录用日期：2017-01-18 网络发布日期：2017-04-20
中文摘要: 探究不同变形量形变热处理对铝电工圆杆导电率及抗拉强度的影响。结果表明，随着轧制变形量的增加，试样的导电率先增加后降低，其抗拉强度得到较大的提升。形变时效后，试样的晶界薄化，组织更加均匀，基体中第二相粒子的含量增加，且出现新相SiB6、Al3.21Si0.47、Cu3Fe17、Al2FeSi。通过“535 ℃×5 h固溶处理 83%轧制 190 ℃×10 h时效”的形变热处理后，试样抗拉强度达到234 MPa的峰值，导电率为53.45%IACS。
Abstract:Effect of deformation aging treatment on conductivity and tensile strength of electrical round aluminum rod was explored. The results show that with increase of rolling deformation, electrical conductivity first rises and then drops, and tensile strength is improved obviously. After deformation aging treatment, grain boundary of samples becomes thinner, and microstructure is more uniform and well-distributed. The second phases of specimen rise visibly, and new phases (SiB6, Al3.21Si0.47, Cu3Fe17, and Al2FeSi) exist in matrix. Tensile strength and electrical conductivity is 234 MPa and 53.45%IACS respectively under thermo-mechanical treatment of 535 ℃×5 h solid solution treatment, rolling (83%), and 190 ℃×10 h aging treatment.
keywords: aluminum electrical round rods deformation aging treatment electrical conductivity tensile strength
文章编号： 中图分类号：TG146.21 文献标志码：
基金项目:贵州省工业攻关项目（黔科合GZ字[2015]3004-2）；贵州大学大学生“SRT计划”项目（2015-153）
引用文本：
王惠,张晓燕,李若楠,朱能贵,韩秀秀,杨发俊,林廷艺.形变时效处理对铝合金电工圆杆抗拉强度和导电率的影响[J].有色金属（冶炼部分）,2017(5):54-58.
WANG Hui,ZHANG Xiaoyan,Li Ruonan,ZHU Nenggui,HAN Xiuxiu,YANG Fajun,LIN Tingyi.Effect of Deformation Aging Treatment on Tensile Strength and Electrical Conductivity of Aluminum Alloy Electric Pole[J].Nonferrous Metals (Extractive Metallurgy),2017(5):54-58.
王惠,张晓燕,李若楠,朱能贵,韩秀秀,杨发俊,林廷艺.形变时效处理对铝合金电工圆杆抗拉强度和导电率的影响[J].有色金属（冶炼部分）,2017(5):54-58.
WANG Hui,ZHANG Xiaoyan,Li Ruonan,ZHU Nenggui,HAN Xiuxiu,YANG Fajun,LIN Tingyi.Effect of Deformation Aging Treatment on Tensile Strength and Electrical Conductivity of Aluminum Alloy Electric Pole[J].Nonferrous Metals (Extractive Metallurgy),2017(5):54-58.
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