Effect of solution treatment and aging on microstructure and properties of 8030 aluminum alloy conducting wire

doi:10.13251/j.issn.0254-6051.2021.08.024

Abstract

Abstract: Effect of solution and aging treatments on microstructure and properties of the 8030 aluminum alloy wire was studied. The results show that the untreated alloy wire consists of α-Al, Al₆Fe, Al₁₃Cu₄Fe₃ and AlMg₂Zn phases. After solution treatment at 480 ℃ for 6 h, the AlMg₂Zn phase is completely dissolved into the matrix, while the Al₁₃Cu₄Fe₃ phase and Al₆Fe phase are partially dissolved. After aging treatment at 240 ℃ for 6 h, the second phases are precipitated again. After solution and aging treatments, the conductivity of the 8030 aluminum alloy wire is improved. After solution treated at 480 ℃ for 6 h and then aged at 240 ℃ for 6 h, the conductivity reaches up to 56.67%IACS, which is 3.41% higher than that of the alloy without heat treatment. After solution and aging treatments, the elongation of the alloy wire is significantly increased. When solution treated at 480 ℃ for 6 h and then aged at 200 ℃ for 4 h, the elongation is increased from 3.75% (untreated alloy) to 31.25%.

Key words: 8030 aluminum alloy conducting wire, solution treatment and aging, microstructure, conductivity, mechanical properties

CLC Number:

TG156.2

Han Xi, Li Maoyang, Qin Guofei, Li Xudong, Dong Chao, Zhang Meili, Dai Weili. Effect of solution treatment and aging on microstructure and properties of 8030 aluminum alloy conducting wire[J]. Heat Treatment of Metals, 2021, 46(8): 125-132.

References

[1]王晓铮, 侯冬冬. 我国电线电缆行业现状与发展初探[J]. 山东工业技术, 2018(9): 165.
Wang Xiaozheng, Hou Dongdong. Preliminary study on the current situation and development of my country's wire and cable industry[J]. Shandong Industrial Technology, 2018(9): 165.
[2]陈憧. 中国有色金属供求平衡分析及其对策研究[D]. 昆明: 昆明理工大学, 2016.
Chen Chong. Research on the analysis of supply-demand balance of Chinese nonferrous metals and countermeasures[D]. Kunming: Kunming University of Science and Technology, 2016.
[3]黄崇祺. 电工用铝和铝合金在电缆工业中的应用与前景[J]. 电线电缆, 2013(2): 4-9.
Huang Chongqi. The application and development of aluminum and aluminum alloy for electrical purposes in cable field[J]. Electric Wire and Cable, 2013(2): 4-9.
[4]秦道广. 铝合金导体生产工艺探讨[J]. 山东工业技术, 2019(5): 205.
Qin Daoguang. Discussion on production technology of aluminum alloy conductor[J]. Shandong Industrial Technology, 2019(5): 205.
[5]戴雅康. 铜包铝线与“以铝节铜”[J]. 电线电缆, 2018(6): 1-3.
Dai Yakang. Copper clad aluminum wire and “saving copper with aluminum”[J]. Electric Wire & Cable, 2018(6): 1-3.
[6]戴雅康, 刘丕家. 铜包铝线缆再生利用的现状及建议[J]. 新材料产业, 2019(2): 55-58.
Dai Yakang, Liu Pijia. Current status and suggestions for the recycling of copper clad aluminum cables[J]. Advanced Materials Industry, 2019(2): 55-58.
[7]吴振江. 铝合金导体应用发展历程及现状[J]. 有色金属材料与工程, 2018, 39(4): 42-48.
Wu Zhenjiang. Development and situation of aluminum alloy conductor[J]. Non-ferrous Metal Materials and Engineering, 2018, 39(4): 42-48.
[8]牛艳萍, 杨勇, 唐维学, 等. 高强高导稀土铝合金导线的热处理工艺正交试验优化[J]. 中国金属通报, 2018(6): 120-122.
Niu Yanping, Yang Yong, Tang Weixue, et al. Orthogonal test optimization of heat treatment process for high-strength and high-conductivity rare earth aluminum alloy wire[J]. China Metal Bulletin, 2018(6): 120-122.
[9]杨莉, 陆冠华, 康跃华, 等. 时效工艺对Al-Mg-Si合金导线抗拉强度和导电率的影响[J]. 材料研究与应用, 2018, 12(1): 32-35.
Yang Li, Lu Guanghua, Kang Yuehua, et al. Effect of aging process on tensile strength and electrical conductivity of Al-Mg-Si alloy wires[J]. Materials Research and Application, 2018, 12(1): 32-35.
[10]倪艳荣. 人工时效对Al-Mg-Si铝合金导线导电性能和力学性能的影响[J]. 热加工工艺, 2018, 47(4): 185-187.
Ni Yanrong. Effects of artificial aging on conductivity and mechanical properties of aluminum alloy wire[J]. Hot Working Technology, 2018, 47(4): 185-187.
[11]林廷艺. 热处理工艺对铝合金电工圆杆析出相及性能的影响[D]. 贵阳: 贵州大学, 2017.
Lin Tingyi. Effect of heat treatment process on precipitates and property of aluminum alloy electrical round rod[D]. Guiyang: Guizhou University, 2017.
[12]张保丰, 蔡海勇, 鲁中健, 等. 固溶和时效处理对Al0.6Fe0.25Cu合金冷拉拔导线组织和性能的影响[J]. 铸造技术, 2014, 35(11): 2547-2550.
Zhang Baofeng, Cai Haiyong, Lu Zhongjian, et al. Effect of solution treatment and aging on microstructure and properties of cold drawn Al0.6Fe0.25Cu[J]. Foundry Technology, 2014, 35(11): 2547-2550.
[13]李春和, 吴细毛, 王建东, 等. 时效温度对6201铝合金力学性能和电导率的影响[J]. 轻合金加工技术, 2014, 42(9): 39-43.
Li Chunhe, Wu Ximao, Wang Jiandong, et al. Effect of aging time on mechanical properties and electrical conductivity of 6201 aluminum alloy[J]. Light Alloy Fabrication Technology, 2014, 42(9): 39-43.
[14]段贺, 宋宁宁, 谭晖, 等. 铝合金杆退火对铝合金导线性能的影响[J]. 热处理技术与装备, 2015, 36(5): 53-55.
Duan He, Song Ningning, Tan Hui, et al. Effect of aluminum alloy rod under annealing on properties of aluminum alloy conductor[J]. Heat Treatment Technology and Equipment, 2015, 36(5): 53-55.
[15]李英, 韩茜, 雷兆隆, 等. 热处理工艺对AA8030铝合金导线组织性能的影响[J]. 轻合金加工技术, 2018, 46(5): 37-41, 61.
Li Ying, Han Xi, Lei Zhaolong, et al. Effect of heat treatment on microstructure and properties of AA8030 aluminum alloy wire[J]. Light Alloy Fabrication Technology, 2018, 46(5): 37-41, 61.
[16]崔忠圻, 覃耀春. 金属学与热处理[M]. 北京: 机械工业出版社, 2013: 30-31.
[17]俞汉清, 陈金德. 金属塑性成形原理[M]. 北京: 机械工业出版社, 1999: 46-47.
[18]Li Y J, Arnberg L. Quantitative study on the precipitation behavior of dispersoids in DC-cast AA3003 alloy during heating and homogenization[J]. Acta Materialia, 2003, 51(12): 3415-3428.
[19]张国玲. 合金元素含量与加工工艺对8030铝合金导线性能的影响[D]. 郑州: 郑州大学, 2012.
Zhang Guoling. The effects of alloying elements content and processing technology on properties of 8030 aluminum alloy[D]. Zhengzhou: Zhengzhou University, 2012.
[20]王学书, 聂波, 谢延翠, 等. 热处理制度对7075铝合金电导率的影响[J]. 轻合金加工技术, 2001, 29(7): 42-49.
Wang Xueshu, Nie Bo, Xie Yancui, et al. Effect of heat-treatment institution on conductivity of 7075 aluminum alloy[J]. Light Alloy Fabrication Technology, 2001, 29(7): 42-49.
[21]于洪伟, 李俊峰, 刘秀华. 热处理制度对6082铝合金电导率的影响[J]. 轻合金加工技术, 2002, 30(9): 12-14.
Yu Hongwei, Li Junfeng, Liu Xiuhua. Effect of heat-treatment institution on conductivity of 6082 aluminum alloy[J]. Light Alloy Fabrication Technology, 2002, 30(9): 12-14.