Nano-scale precipitates: The key to high strength and high conductivity in Al alloy wire

IMR OpenIR

	Nano-scale precipitates: The key to high strength and high conductivity in Al alloy wire
	Hou, J. P.; Wang, Q.; Zhang, Z. J.; Tian, Y. Z.; Wu, X. M.; Yang, H. J.; Li, X. W.; Zhang, Z. F.; Wang, Q; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
	2017-10-15
发表期刊	ELSEVIER SCI LTD
ISSN	0264-1275
卷号	132 页码:148-157
摘要	Outstanding mechanical and conductive properties are vital to Al alloys used as overhead conductors. However, high strength and high electrical conductivity are usually mutually exclusive in metallic materials. In this study, we present a novel method to achieve high strength and high conductivity in an Al-Mg-Si conductor. Numerous dispersive nano-scale precipitates were obtained using an artificial aging treatment for a 6201RE Al alloy conductor. The precipitation of the alloying elements in the form of nano-scale precipitates is determined to play a strengthening role, decreasing the concentration of alloying elements in the matrix and reduce lattice distortion such that high strength (352.3MPa) and high electrical conductivity (56.0% IACS) are achieved simultaneously in a 6201RE Al alloy. High strength and enhanced electrical conductivity could be achieved by introducing the nanoscale precipitates in the Al alloy. Finally, the strengthening mechanisms and the electrical conductivity induced by the nano-scale precipitates were discussed. (C) 2017 Elsevier Ltd. All rights reserved.; Outstanding mechanical and conductive properties are vital to Al alloys used as overhead conductors. However, high strength and high electrical conductivity are usually mutually exclusive in metallic materials. In this study, we present a novel method to achieve high strength and high conductivity in an Al-Mg-Si conductor. Numerous dispersive nano-scale precipitates were obtained using an artificial aging treatment for a 6201RE Al alloy conductor. The precipitation of the alloying elements in the form of nano-scale precipitates is determined to play a strengthening role, decreasing the concentration of alloying elements in the matrix and reduce lattice distortion such that high strength (352.3MPa) and high electrical conductivity (56.0% IACS) are achieved simultaneously in a 6201RE Al alloy. High strength and enhanced electrical conductivity could be achieved by introducing the nanoscale precipitates in the Al alloy. Finally, the strengthening mechanisms and the electrical conductivity induced by the nano-scale precipitates were discussed. (C) 2017 Elsevier Ltd. All rights reserved.
部门归属	[hou, j. p. ; wang, q. ; zhang, z. j. ; tian, y. z. ; yang, h. j. ; zhang, z. f.] chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [hou, j. p. ; li, x. w.] northeastern univ, sch mat sci & engn, dept mat phys & chem, shenyang 110819, liaoning, peoples r china ; [wu, x. m.] liaoning elect power co ltd, liaoning elect power co, elect power res inst, shenyang 110006, liaoning, peoples r china
关键词	Aluminum Alloys Precipitation Electrical Conductivity Strength
学科领域	Materials Science, Multidisciplinary
资助者	National Natural Science Foundation of China (NSFC) [51331007]; State Grid Corporation of China [52110416001z]
收录类别	SCI
语种	英语
WOS记录号	WOS:000408688300016
引用统计	被引频次：84[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/79044
专题	中国科学院金属研究所
通讯作者	Wang, Q; Zhang, ZF (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Hou, J. P.,Wang, Q.,Zhang, Z. J.,et al. Nano-scale precipitates: The key to high strength and high conductivity in Al alloy wire[J]. ELSEVIER SCI LTD,2017,132:148-157.
APA	Hou, J. P..,Wang, Q..,Zhang, Z. J..,Tian, Y. Z..,Wu, X. M..,...&Zhang, ZF .(2017).Nano-scale precipitates: The key to high strength and high conductivity in Al alloy wire.ELSEVIER SCI LTD,132,148-157.
MLA	Hou, J. P.,et al."Nano-scale precipitates: The key to high strength and high conductivity in Al alloy wire".ELSEVIER SCI LTD 132(2017):148-157.