Microstructure and Properties of Electrical Round Aluminum Rod Treated by Two-Stage Deformation Aging

被引：0
|
作者：
Yan J. [1 ]
Lei Y. [1 ]
Zhang X. [1 ]
Lin T. [1 ]
Hu X. [1 ]
Zhang J. [1 ]
机构：
[1] College of Material and Metallurgy, Guizhou University, Guiyang
来源：
Zhang, Xiaoyan (ivzhangxiaoyan@163.com) | 2018年 / Editorial Office of Chinese Journal of Rare Metals卷 / 42期
关键词：
Electrical conductivity; Electrical round aluminum rod; Tensile strength; Two stage deformation aging process;
D O I：
10.13373/j.cnki.cjrm.XY17100028
中图分类号：
学科分类号：
摘要：
The effects of two-stage deformation aging on the microstructure and properties of Al-B electric round rods were studied by means of hardness, conductivity test and X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results showed that the electrical conductivity and tensile strength of the alloy firstly increased and then decreased with the increase of the pre-aging temperature after the aging treatment of two-stage deformation. When the pre-deformation was small, the peak value of the tensile strength of the alloy appeared more slowly, while the pre-deformation was too large, the conductivity of the material and tensile strength index decreased. The precipitates dispersedly distributed in the matrix and remained in a coherent relationship with them. In the scan-TEM (S-TEM) mode, the diffraction pattern could be determined as the enhanced phase θ'. Compared with the alloy with single-stage deformation aging process (deformation amount of 83%+aging of 190℃×6 h), through the 32% pre-deformation+110℃×2 h pre-aging+83% final deformation+190℃×6 h final aging process, the alloy obtained tensile strength value of 181 MPa, conductivity of 58.5% IACS, elongation of 8%, the conductivity and tensile strength were greatly improved, and the overall performance was better. © Editorial Office of Chinese Journal of Rare Metals. All right reserved.
引用
收藏
页码：1221 / 1226
页数：5
相关论文
共 20 条
  • [1] Jia S.G., Liu P., Kang B.X., Tian B.H., Zheng M.S., Zhou G.S., Effects of trace rare-earth on the properties of Cu-Ag contact wire, Journal of Functional Materials, 35, 4, (2004)
  • [2] Li Z.Q., Study on the Technical Problems of Continuous Casting and Rolling for Aluminum Wire Rod, (2003)
  • [3] Huang X., Zhang X.Y., Gao H.X., Ma L., Gong X.P., Effect of rolling deformations on properties of the electrical wire of rare earth aluminum, Light Alloy Fabrication Technology, 43, 1, (2015)
  • [4] Wang H., Zhang X.Y., Li R.N., Zhu N.G., Han X.X., Yang F.J., Lin T.Y., Effect of deformation aging treatment on tensile strength and electrical conductivity of aluminum alloy electric pole, Nonferrous Metals (Extractive Metallurgy), 5, (2017)
  • [5] Hu X.J., Zhang R.G., Zhang X.Y., Lin T.Y., Zhang J.J., Huang X., Gong X.P., Yan J., Effect of strain aging on rare earth electrical round aluminum rods at different Cu content, Chinese Journal of Nonferrous Metals, 27, 8, (2017)
  • [6] Zhou H.T., Zhong J.W., Zhou X., Zhao Z.K., Li Q.B., Effects of multi-step thermomechanical treatments on microstructure and properties of Cu-Cr-Zr alloy, Transactions of Materials and Heat Treatment, 30, 3, (2009)
  • [7] Xiao X.P., Liu R.Q., Yi Z.Y., Chen T.T., Two-step deforming and aging research on microstructure and properties of Cu-Cr-Zr-Mg alloy, Materials Review, 30, 12, (2016)
  • [8] Zhang X.M., Jia Y.Z., Liu L., Ye L.Y., Chen M.A., Gao Z.G., Wang W.T., Kuang X.Y., Effects of cold-pre-rolling reduction on precipitation of 2519A aluminum alloy plate, Journal of Central South University (Science and Technology), 42, 1, (2011)
  • [9] Zhou R.R., He A.G., Fang H.C., Wang B., Luo F.H., Effects of pre-deformation on microstructure and mechanicalproperties of 2219 aluminum alloy, Transactions of Materials and Heat Treatment, 37, 4, (2016)
  • [10] Yuan Z.S., Lu Z., Xie Y.H., Dai S.L., Liu C.S., Effect of plastic deformation on microstructure and properties of high strength Al-Cu-Li-X aluminum-lithium alloy, Rare Metal Materials and Engineering, 36, 3, (2007)
12