Microstructural Evolution and Mechanical- and Electrical-Property of Cold-Drawn and -Rolled Electrical Aluminum Wires

doi:10.11901/1005.3093.2017.181

Chinese Journal of Materials Research

2018, Vol. 32

Issue (5): 357-364 DOI: 10.11901/1005.3093.2017.181

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Microstructural Evolution and Mechanical- and Electrical-Property of Cold-Drawn and -Rolled Electrical Aluminum Wires

Xuemei LUO¹, Hongyun YU², Rui LI², Zuman SONG¹, Qiang WANG¹, Zhefeng ZHANG¹, Guangping ZHANG¹(

)

1 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
2 SGCC-Testing Technology Lab of Electrical Equipment Safety Performance, Zhejiang Huadian Equipment Testing Institute, Hangzhou 310015, China

Cite this article:

Xuemei LUO, Hongyun YU, Rui LI, Zuman SONG, Qiang WANG, Zhefeng ZHANG, Guangping ZHANG. Microstructural Evolution and Mechanical- and Electrical-Property of Cold-Drawn and -Rolled Electrical Aluminum Wires. Chinese Journal of Materials Research, 2018, 32(5): 357-364.

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Abstract

Commercial A4 pure aluminum electrical wire was subjected to cold drawing and cold rolling respectively, and then their microstructure, strength and electrical conductivity were investigated systematically. Results show that in the case of less deformation, the microstructure both of the cold drawn and rolled aluminum electrical wires consists of elongated grains with low-angle grain boundaries and dislocation substructures; In case of similar equivalent strain deformation, there exists higher percentage of high-angle grain boundaries in the cold-rolled wires. While the strength and ductility of the cold drawn wires are higher than that of the cold rolled ones. Finally, the relationship between deformation strengthening and conductivity of the pure aluminum was elucidated.

Key words: metallic materials aluminum wire drawing rolling mechanical properties electronic conductivity

Received: 10 March 2017

Fund: Supported by the Science and Technology Project of State Grid Corporation of China (No. 52110416001z) and National Natural Science Foundation of China (No. 51601198)

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	Xuemei LUO
	Hongyun YU
	Rui LI
	Zuman SONG
	Qiang WANG
	Zhefeng ZHANG
	Guangping ZHANG

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https://www.cjmr.org/EN/10.11901/1005.3093.2017.181 OR https://www.cjmr.org/EN/Y2018/V32/I5/357

Table 1 Table 1 Chemical compositions of commercial pure aluminum (%, mass fraction)

Table 2 Diameter (D), and the corresponding total reduction in area (RA) and equivalent strain (ε^WD) of cold-drawn Al wires in each pass

Fig.1 Dimensions of tensile testing specimen of the rolled Al rods

Fig.2 EBSD orientation maps of in the plane parallel to the drawing direction (DD) of the wire-drawn Al rods (a-c) and in the ND-RD plane of the rolled Al rods (d-f)

Fig.3 GB misorientation distribution under (a)-(c) wire drawing and (d)-(f) rolling deformation

Fig.4 Fraction of the HAGBs the rolled and wire-drawn Al wires processed to various strains

Fig.5 Average Schmid factors of the Al wires processed to various drawing and rolling strains

Fig.6 Yield strength and the uniform elongation of the Al wires processed to various drawing and rolling strains

Fig.7 Electric conductivity of the wire-drawn Al wires as a function of equivalent strain

Fig.8 Experimental measured resistivity (filled square) and calculated grain boundary resistivity (hollow square) of the wire-drawn Al wires as a function of equivalent strain

Fig.9 Strength against IACS of wire-drawn and rolled Al specimens

[1]	Kiessling F, Nefzger P, Kaintzyk U, et al.Overhead Power Lines: Planning, Design, Construction[M]. Springer, Berlin Heidelberg, 2003
[2]	Zhang G P, Li M L, Wu X M, et al.Research Progress on Effect of Length Scale on Electrical Resistivity of Metals[J]. Chin J Mater Res, 2014, 28(2): 81(张广平, 李孟林, 吴细毛等. 尺度对金属材料电阻率影响的研究进展[J]. 材料研究学报, 2014, 28(2): 81)
[3]	Wu X M, He Z H, Li C H, et al.Evolution of Drawing Texture for A6 Aluminum Conductor[J]. Chin J Mater Res, 2015, 29(7): 555)(吴细毛, 和正华, 李春和等. 在A6电工铝导线的冷拉拔过程中织构的演变[J]. 材料研究学报. 2015, 29(7): 555)
[4]	Wang W D.Principle and Application of Cable Technology [M]. Beijing: China Machine Press, 2010(王卫东. 电缆工艺技术原理及应用 [M]. 北京: 机械工业出版社, 2011)
[5]	Hurley P J, Humphreys F J.The application of EBSD to the study of substructural development in a cold rolled single-phase aluminium alloy[J]. Actar Mater, 2003, 51(4):
[6]	Hanazaki K, Shigeiri N, Tsuji N.Change in microstructures and mechanical properties during deep wire drawing of copper[J]. Mater Sci Eng, A, 2010, 527(21-22): 5699
[7]	Saito Y, Tsuji N, Utsunomiya H, et al., Ultra-fine grained bulk aluminum produced by accumulative roll-bonding (ARB) process[J]. Scr Mater, 1998, 39(9):
[8]	Park K T, Kwon H J, Kim W J, et al., Microstructural characteristics and thermal stability of ultrafine grained 6061 Al alloy fabricated by accumulative roll bonding process[J]. Mater Sci Eng A, 2001, 316(1-2): 145
[9]	Xing Z P, Kang S B, Kim H W.Microstructural evolution and mechanical properties of the AA8011 alloy during the accumulative roll-bonding process[J]. Metall Mater Trans A, 2002, 33(5): 1521
[10]	Segal V M, Ferrasse S, Alford F.Tensile testing of ultra fine grained metals[J]. Mater Sci Eng A-Struct Mater Prop Microstruct Process, 2006, 422(1-2): 321
[11]	Li S, Gazder A A, Beyerlein I J, et al., Microstructure and texture evolution during equal channel angular extrusion of interstitial-free steel: Effects of die angle and processing route[J]. Acta Mater, 2007, 55(3): 1017
[12]	Lu L.Ultrahigh strength and high electrical conductivity in copper[J]. Science, 2004, 304(5669): 422
[13]	Liu X C, Zhang H W, Lu K.Strain-induced ultrahard and ultrastable nanolaminated structure in nickel[J]. Science, 2013, 342(6156): 337
[14]	Wang Q, Wu X M, Li C H, et al.Mechanical Properties of A6 Aluminum Conductor in Drawing Process[J]. Chin J Mater Res, 2013, 27(03): 231(王强, 吴细毛, 李春和等. 拉拔工艺对A6工业纯铝导线力学性能的影响[J]. 材料研究学报, 2013,27(03):231)
[15]	Hosseini S A, Manesh H D.High-strength, high-conductivity ultra-fine grains commercial pure copper produced by ARB process[J]. Mater Design, 2009, 30(8): 2911
[16]	Habibi A, Ketabchi M, Eskandarzadeh M.Nano-grained pure copper with high-strength and high-conductivity produced by equal channel angular rolling process[J]. J Mater Process Technol, 2011, 211(6): 1085
[17]	?etinarslan C S.Effect of cold plastic deformation on electrical conductivity of various materials[J]. Mater Design, 2009, 30(3): 671
[18]	Ko Y G, Namgung S, Lee B U, et al., Mechanical and electrical responses of nanostructured Cu-3wt%Ag alloy fabricated by ECAP and cold rolling[J]. J Alloy Compd, 2010, 504(S448)
[19]	Han K, Embury J D, Sims J R, et al., The fabrication, properties and microstructure of Cu-Ag and Cu-Nb composite conductors[J]. Mater Sci Eng, A, 1999, 267(1): 99
[20]	Takata N, Lee S-H, Tsuji N.Ultrafine grained copper alloy sheets having both high strength and high electric conductivity[J]. Mater Lett, 2009, 63(21): 1757
[21]	Sakai Y, Inoue K, Maeda H.New high-strength, high-conductivity Cu-Ag alloy sheets[J]. Acta Metall. Mater., 1995, 43(4): 1517
[22]	Raygan S, Mofrad H E, Pourabdoli M, et al., Effect of rolling and annealing processes on the hardness and electrical conductivity values of Cu-13.5%Mn-4%Ni alloy[J]. J Mater Process Technol, 2011, 211(11): 1810
[23]	Huang C Q.The application and development of aluminum and aluminum alloy for electrical purposes in cable field[J]. Electric Wire Cable, 2013, (02): 4(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, (02): 4)
[24]	Kamikawa N, Huang X X, Tsuji N, et al., Strengthening mechanisms in nanostructured high-purity aluminium deformed to high strain and annealed[J]. Acta Mater, 2009, 57(14): 4198
[25]	Hughes D A, Hansen N.Microstructure and strength of nickel at large strains[J]. Acta Mater, 2000, 48(11): 2985
[26]	Kamikawa N, Huang X, Tsuji N, et al., Strengthening mechanisms in nanostructured high-purity aluminium deformed to high strain and annealed[J]. Acta Mater, 2009, 57(14): 4198
[27]	Hansen N.Hall-Petch relation and boundary strengthening[J]. Scripta Mater, 2004, 51(8): 801
[28]	Hansen N.Boundary strengthening in undeformed and deformed polycrystals[J]. Mater Sci Eng, A, 2005, 409(1-2):
[29]	Matthiessen A, Vogt C. On the influence of temperature on the electric conducting-power of alloys [J]. Philos Trans R Soc London, 1864, 154: 167
[30]	Murashkin M Y, Sabirov I, Sauvage X, et al., Nanostructured Al and Cu alloys with superior strength and electrical conductivity[J]. J Mater Sci, 2016, 51(1): 33
[31]	Botcharova E, Freudenberger J, Schultz L.Mechanical and electrical properties of mechanically alloyed nanocrystalline Cu-Nb alloys[J]. Acta Mater, 2006, 54(12): 3333
[32]	Andrews P V, West M B, Robeson C R.The effect of grain boundaries on the electrical resistivity of polycrystalline copper and aluminium[J]. Philos Mag, 1969, 19(161): 887
[33]	Brown R A.A dislocation model of grain boundary electrical resistivity[J]. Journal of Physics F: Metal Physics, 1977, 7(8): 1477
[34]	Nakamichi I. Electrical resistivity and grain boundaries in metals[J]. Mater Sci Forum, 1996, 207-209(1): 47
[35]	Hong S I, Hill M A.Mechanical stability and electrical conductivity of Cu-Ag filamentary microcomposites[J]. Mater Sci Eng, A, 1999, 264(1-2): 151
[36]	Mayadas A F, Shatzkes M.Electrical-Resistivity Model for Polycrystalline Films: the Case of Arbitrary Reflection at External Surfaces[J]. Phys Rev B, 1970, 1(4): 1382
[37]	César M, Liu D, Gall D, et al., Calculated Resistances of Single Grain Boundaries in Copper[J]. Phys Rev Appl, 2014, 2(4): 044007

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