Evolution of Drawing Texture for A6 Aluminum Conductor

doi:10.11901/1005.3093.2014.786

Chinese Journal of Materials Research

2015, Vol. 29

Issue (7): 555-560 DOI: 10.11901/1005.3093.2014.786

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Evolution of Drawing Texture for A6 Aluminum Conductor

Ximao WU¹,Zhenghua HE²,Chunhe LI¹,Jinlong LIU²,Fang ZHANG²,Yuhui SHA^2,^**(

)

1. Electric Power Research Institute of Liaoning Electric Power Co., Ltd., Liaoning Electric Power Co., Ltd., Shenyang 110006, China
2. Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China

Cite this article:

Ximao WU,Zhenghua HE,Chunhe LI,Jinlong LIU,Fang ZHANG,Yuhui SHA. Evolution of Drawing Texture for A6 Aluminum Conductor. Chinese Journal of Materials Research, 2015, 29(7): 555-560.

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Abstract

Evolution of drawing texture for A6 aluminum conductor with the drawing process was investigated by macro and micro-texture analysis. The results show that the fiber-like deformation texture of <111> and <100> formed in the drawing process, and <100> texture reduced while <111> texture enhanced with the increasing strain. The distribution of deformed texture was of homogeneity along the radial direction of wire: the deform texture transformed from strong <100> texture (~52% volume fraction) in the surface to strong <111> texture (~55%) in the center by moderate strains; the radial gradient texture was weakened and a strong <111> texture (>70%) formed in the overall wire by high strains. Moreover, the core hardness of the wire was higher than that of the surface, which attributed to the texture gradient distribution along the radial. Adjusting the drawing process to optimize the dislocation density and texture as well as their distribution in the wire is an effective route to improve the strength and conductive properties of the A6 aluminum conductor.

Key words: metallic materials texture evolution drawing aluminum conductor microstructure

Received: 29 December 2014

Fund: *Supported by State Grid Corporation of China No. DKYKJ[2012]006-2.

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	Ximao WU
	Zhenghua HE
	Chunhe LI
	Jinlong LIU
	Fang ZHANG
	Yuhui SHA

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https://www.cjmr.org/EN/10.11901/1005.3093.2014.786 OR https://www.cjmr.org/EN/Y2015/V29/I7/555

Fig.1 Experimental arrangement of wires for texture measurement

Fig.2 Constant φ₂ sections of ODFs in A6 aluminum wires with different cold drawn reductions (a) 51%, (b) 61%, (c) 69%, (d) 81%, (e) 85%, (f) 90%

Fig.3 OIM of cold drawn A6 aluminum wires with various reductions (a) 51%, (b) 61%, (c) 69%, (d) 81%, (e) 85%, (f) 90%

Fig.4 Variation of volume faction of fiber textures with reductions in the cold drawn A6 aluminum wires

Fig.5 OIM and inverse pole figure of 61% cold drawn A6 aluminum wires in vary regions: (a, d) surface, (b, e) transition region, (c, f) center

Fig.6 OIM and {100} pole figure of 90% cold drawn A6 aluminum wires in vary regions (a, d) surface, (b, e) transition region, (c, f) center

Fig.7 Variation of volume faction of fiber texture (a) and micro-hardness (b) with reductions in different regions of the cold drawn A6 aluminum wires

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