温度对<strong>6101</strong>铝合金导线拉伸性能的影响

doi:10.11901/1005.3093.2020.155

材料研究学报

2020, Vol. 34

Issue (10): 730-736 DOI: 10.11901/1005.3093.2020.155

研究论文

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温度对6101铝合金导线拉伸性能的影响

宋文硕¹, 宋竹满², 罗雪梅², 张广平², 张滨¹(

)

1.东北大学材料各向异性与织构教育部重点实验室材料科学与工程学院沈阳 110819
2.中国科学院金属研究所沈阳材料科学国家研究中心沈阳 110016

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

SONG Wenshuo¹, SONG Zhuman², LUO Xuemei², ZHANG Guangping², ZHANG Bin¹(

)

1. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, School of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China
2. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

引用本文:

宋文硕, 宋竹满, 罗雪梅, 张广平, 张滨. 温度对6101铝合金导线拉伸性能的影响[J]. 材料研究学报, 2020, 34(10): 730-736.
Wenshuo SONG, Zhuman SONG, Xuemei LUO, Guangping ZHANG, Bin ZHANG. Effect of Temperature on Tensile Properties of 6101 Al-alloy Wires[J]. Chinese Journal of Materials Research, 2020, 34(10): 730-736.

全文: PDF(10416 KB) HTML

摘要:

研究了6101铝合金单股导线在-70℃到70℃温度区间的拉伸性能。结果表明，6101铝合金导线在-70℃低温下具有较高的强度和较好的变形均匀性，但是随着变形温度的提高其屈服强度和强度极限都呈下降趋势。与在-70℃的拉伸性能相比，在70℃合金的强度极限和屈服强度分别降低了10.9%和9.3%。对应变硬化率和屈服强度与温度的相关性分析发现，在拉伸变形过程中合金样品的应变硬化率随着流变应力的增大和温度的升高呈下降趋势。晶格摩擦阻力极大的影响了合金的屈服强度，对比不同温度下6101合金的屈服强度增量的拟合计算结果与实验结果，得到了这种导线屈服强度增量与温度的关系，据此可预测此类导线在不同温度下的服役可靠性。

关键词 ：金属材料, 6101铝合金导线, 强度, 温度, 应变硬化率

Abstract：

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.

Key words： metallic materials 6101 aluminum alloy conductor strength temperature strain hardening rate

收稿日期: 2020-05-09

ZTFLH:

TB31

基金资助:国家自然科学基金(51671050);国家自然科学基金(51971060)

作者简介: 宋文硕，男，1996年生，硕士生

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https://www.cjmr.org/CN/10.11901/1005.3093.2020.155 或 https://www.cjmr.org/CN/Y2020/V34/I10/730

图1 6101铝合金导线的拉伸试样示意图

图2 6101铝合金导线原始样品的横截面和纵截面的透射电镜照片

图3 在不同温度下样品的工程应力-应变曲线和应变量为0.2%~0.35%条件下的真应力-应变曲线

图4 6101铝合金导线试样的拉伸强度极限、屈服强度和均匀伸长率与温度的关系

图5 在不同温度下拉伸样品断口的扫描电镜照片

图6 在-70℃和 70℃断口附近样品表面的SEM照片

图7 不同温度下应变硬化率θ与流变应力增量(σ-σ0.2)的关系

T/℃	X	Y	$k 1$	$k 2$	Formula of strain hardening rate
-70	28.5	3389	1.674	79.275	θ=39181(1-σ/330)
-50	26.1	3309	1.751	84.521	θ=41108(1-σ/323)
-25	27.0	3346	1.684	82.617	θ=39408(1-σ/318)
25	19.5	2663	1.765	91.043	θ=41311(1-σ/303)
50	17.4	3171	2.378	121.494	θ=55656(1-σ/305)
70	16.0	2247	1.734	93.625	θ=40586(1-σ/289)

表1 不同温度下样品拉伸参数

图8 不同温度下的k1/k2值

图9 样品屈服强度增量的实验值和计算值

[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 [J]. Mater. Des., 2008, 29(7): 1364
[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 [J]. Mater. Des., 2006, 27(10): 821
[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]. J. Mater. Process. Technol., 2005, 160(2): 174
[4]	Hu J, Zhou T G, Li Z S, et al. Production status and development prospects of Al-Mg-Si alloy conductor [J]. Light Alloy Fabr. Technol, 2018, 46(01): 5
[4]	胡静, 周天国, 李振山等. Al-Mg-Si合金导线的生产现状及其发展前景 [J]. 轻合金加工技术, 2018, 46(01): 5
[5]	Li Y, Du X, Zhang Y, et al. Influence of Sc on microstructure and mechanical properties of Al-Si-Mg-Cu-Zr alloy [J]. Appl. Phys. A., 2018, 124(2)
[6]	Yuan W, Liang Z. Effect of Zr addition on properties of Al–Mg–Si aluminum alloy used for all aluminum alloy conductor [J]. Mater. Des., 2011, 32(8-9): 4195
[7]	Zhou W W, Cai B, Li W J, et al. Heat-resistant Al-0.2Sc-0.04Zr electrical conductor [J]. Mater. Sci. Eng. A, 2012, 552:353
[8]	Zhang H K. Study of the mechanical properties of Al-Si-Cu alloy under low temperature [J]. Sichuan Metall., 2013, 35(05): 51
[8]	张洪坤. Al-Si-Cu合金低温力学性能的研究 [J]. 四川冶金, 2013, 35(05): 51
[9]	Liu Y, Zhang X M, Li H Z, et al. Tensile properties of three kinds of aluminum alloys at low temperature [J]. Heat Treat. Met., 2007(01): 53
[9]	刘瑛, 张新明, 李慧中等. 3种高强铝合金的低温拉伸力学性能研究 [J]. 金属热处理, 2007(01): 53
[10]	Liu Y, Zhang X M, Li H Z, et al. Tensile properties of 2519 aluminum alloy at low temperature [J]. J. Cent. South Univ. (Sci. Technol.), 2006(04): 641
[10]	刘瑛, 张新明, 李慧中等. 2519铝合金的低温拉伸力学性能 [J]. 中南大学学报(自然科学版), 2006(04): 641
[11]	Zerilli F J, Armstrong R W. The effect of dislocation drag on the stress-strain behavior of F.C.C. metals [J]. Acta Metall. Mater., 1992, 40(8): 1803
[12]	Abed F H, Voyiadjis G Z. A consistent modified Zerilli-Armstrong flow stress model for BCC and FCC metals for elevated temperatures [J]. Acta Mech., 2005, 175(1-4): 1
[13]	Lee W S, Lin C R. Deformation behavior and microstructural evolution of 7075-T6 aluminum alloy at cryogenic temperatures [J]. Cryogenics, 2016, 79:26
[14]	Lee W S, Chen T H, Huang S C. Impact deformation behaviour of Ti-6Al-4V alloy in the low-temperature regime [J]. J. Nucl. Mater., 2010, 402(1): 1
[15]	Tomota Y, Lukas P, Harjo S, et al. In situ neutron diffraction study of IF and ultra low carbon steels upon tensile deformation [J]. Acta Mater., 2003, 51(3): 819
[16]	Lee W S, Lin C F, Chen T H, et al. High temperature deformation and fracture behaviour of 316L stainless steel under high strain rate loading [J]. J. Nucl. Mater., 2012, 420(1-3): 226
[17]	Ye Y L, Yang Z, Xu X X, et al. Effects of Excess Mg and Si on the Properties of 6101 Conducting Wire and Its Mechanism [J]. Rare Metal Mat. Eng., 2016, 45(04): 968
[17]	叶於龙, 杨昭, 徐雪璇等. 过量Mg、Si元素对6101电工导线性能影响及机制 [J]. 稀有金属材料与工程, 2016, 45(04): 968
[18]	Li Z, Li N, Wang D Z, et al. Low temperature deformation behavior of an electromagnetically bulged 5052 aluminum alloy [J]. Sci. Rep., 2016, 6(1) pmid: 28442706
[19]	Taylor G I. The Mechanism of Plastic Deformation of Crystals. Part I. Theoretical [J]. Proc. R. Soc. London, 1934, 145(855): 362
[20]	Gutiérrez I, Altuna M A. Work-hardening of ferrite and microstructure-based modelling of its mechanical behaviour under tension [J]. Acta Mater., 2008, 56(17): 4682
[21]	Estrin Y, Mecking H. A unified phenomenological description of work hardening and creep based on one-parameter models [J]. Acta Metall., 1984, 32(1): 57
[22]	Dietze H D. Die Temperaturabhängigkeit der Versetzungsstruktur [J]. Z. Phys., 1952, 132(1): 107
[23]	Wu Z, Bei H, Pharr G M, et al. Temperature dependence of the mechanical properties of equiatomic solid solution alloys with face-centered cubic crystal structures [J]. Acta Mater., 2014, 81: 428

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