Effect of Temperature on Tensile Properties of 6101 Al-alloy Wires

被引：0
|
作者：
Song W. [1 ]
Song Z. [2 ]
Luo X. [2 ]
Zhang G. [2 ]
Zhang B. [1 ]
机构：
[1] Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, School of Materials Science and Engineering, Northeastern University, Shenyang
[2] Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang
来源：
Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research | 2020年 / 34卷 / 10期
基金：
中国国家自然科学基金;
关键词：
6101 aluminum alloy conductor; Metallic materials; Strain hardening rate; Strength; Temperature;
D O I：
10.11901/1005.3093.2020.155
中图分类号：
学科分类号：
摘要：
Tensile properties of a single-strand conductor of 6101 Al-alloy were investigated in the temperature range from -70℃ to 70℃. It is found that the 6101 Al-alloy wire has high strength and good deformation uniformity at the low temperature (-70℃). However, the yield strength and the ultimate tensile strength of the alloy exhibited a decreasing trend with the increasing testing temperature. The ultimate tensile strength and the yield strength of the alloy at 70℃ decreased by 10.9% and 9.3%, respectively, comparing with those of the counterparts tested at -70℃. From the analysis on the correlation of the work hardening rate and the yield strength with the temperature, it is found that the strain hardening rate of the alloy decreased with the increasing flow stress and the raising temperatures. In addition, the lattice friction stress has a strong correlation with temperature, which is the main factor affecting the yield strength of the alloy. Based on the comparison of the fitting calculated increment of the yield strength of the alloy to the corresponding experimental results, a model about the relation between the yield strength of the alloy and the service temperature was obtained, by which the appropriate yield strength of the alloy at different service temperatures can be predicted. © 2020, Editorial Office of Chinese Journal of Materials Research. All right reserved.
引用
收藏
页码：730 / 736
页数：6
相关论文
共 23 条
  • [1] Karabay S., Influence of AlB2 compound on elimination of incoherent precipitation in artificial aging of wires drawn from redraw rod extruded from billets cast of alloy AA-6101 by vertical direct chill casting, Mater. Des, 29, 7, (2008)
  • [2] Karabay S., Modification of AA-6201 alloy for manufacturing of high conductivity and extra high conductivity wires with property of high tensile stress after artificial aging heat treatment for all-aluminium alloy conductors, Mater. Des, 27, 10, (2006)
  • [3] Karabay S, Uzman I., Inoculation of transition elements by addition of AlB2 and AlB12 to decrease detrimental effect on the conductivity of 99.6% aluminium in CCL for manufacturing of conductor, J. Mater. Process. Technol, 160, 2, (2005)
  • [4] Hu J, Zhou T G, Li Z S, Et al., Production status and development prospects of Al-Mg-Si alloy conductor, Light Alloy Fabr. Tech-nol, 46, (2018)
  • [5] Li Y, Du X, Zhang Y, Et al., Influence of Sc on microstructure and mechanical properties of Al-Si-Mg-Cu-Zr alloy, Appl. Phys. A, 124, 2, (2018)
  • [6] Yuan W, Liang Z., Effect of Zr addition on properties of Al-Mg-Si aluminum alloy used for all aluminum alloy conductor, Mater. Des, 32, 8-9, (2011)
  • [7] Zhou W W, Cai B, Li W J, Et al., Heat-resistant Al-0.2Sc-0.04Zr electrical conductor, Mater. Sci. Eng. A, 552, (2012)
  • [8] Zhang H K., Study of the mechanical properties of Al-Si-Cu alloy under low temperature, Sichuan Metall, 35, (2013)
  • [9] Liu Y, Zhang X M, Li H Z, Et al., Tensile properties of three kinds of aluminum alloys at low temperature, Heat Treat. Met, (2007)
  • [10] Liu Y, Zhang X M, Li H Z, Et al., Tensile properties of 2519 aluminum alloy at low temperature, J. Cent. South Univ. (Sci. Technol.), (2006)
123