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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
Source PublicationELSEVIER SCI LTD
ISSN0264-1275
Volume132Pages:148-157
AbstractOutstanding 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.
description.department[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
KeywordAluminum Alloys Precipitation Electrical Conductivity Strength
Subject AreaMaterials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China (NSFC) [51331007]; State Grid Corporation of China [52110416001z]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79044
Collection中国科学院金属研究所
Corresponding AuthorWang, 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.
Recommended Citation
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.
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