Role of Multi-Scale Microstructure in the Degradation of Al Wire for Power Transmission

doi:10.3390/app10072234

IMR OpenIR

	Role of Multi-Scale Microstructure in the Degradation of Al Wire for Power Transmission
	Li, Rui 1; Liu, Hanzhong 2,3,4; Ma, Heng 1; Hou, Jiapeng 2; Qian, Liqun 1; Wang, Qiang 2; Li, Xiaowu 3,4; Zhang, Zhefeng 2
通讯作者	Hou, Jiapeng(jphou@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
	2020-04-01
发表期刊	APPLIED SCIENCES-BASEL
卷号	10 期号:7 页码:13
摘要	As common conductive materials, Al wires are used on overhead transmission lines under long-term heating conditions. In this study, the strength degradation behavior and the strength-electrical conductivity relation of the commercially pure Al wires (CPAWs) and the Al-Fe wires (AFWs) annealed at various temperatures were investigated based on the microstructure evolution. The strength degradation rate of the AFW is always higher than that of the CPAW. A linear trade-off relation between strength and electrical conductivity for the annealed Al wires are clarified. The results reveal that the mechanisms behind the trade-off relation between the strength and the electrical conductivity for the annealed CPAWs and the annealed AFWs are the recovery of dislocations and the obvious increase of grain width, which leads to the decrease of strength and the increase of electrical conductivity. The coalescence of precipitate in the AFW leads to the obvious decrease of strength, which results in the higher strength degradation rate for the AFW as compared with that for the CPAW. Consequently, the principle of microstructure design for anti-degradation of Al wire is presented.
关键词	commercially pure Al wire Al-Fe wire strength degradation electrical conductivity annealing treatment
资助者	State Grid Corporation of China
DOI	10.3390/app10072234
收录类别	SCI
语种	英语
资助项目	State Grid Corporation of China[5211HD180007]
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000533356200033
出版者	MDPI
引用统计	被引频次：1[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/321006/139322
专题	中国科学院金属研究所
通讯作者	Hou, Jiapeng; Zhang, Zhefeng
作者单位	1.Zhejiang Huadian Equipment Testing Inst, Natl Qual Supervis & Inspect Ctr Elect Equipment, Hangzhou 310015, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Lab Fatigue & Fracture Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Minist Educ, Shenyang 110819, Peoples R China 4.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Li, Rui,Liu, Hanzhong,Ma, Heng,et al. Role of Multi-Scale Microstructure in the Degradation of Al Wire for Power Transmission[J]. APPLIED SCIENCES-BASEL,2020,10(7):13.
APA	Li, Rui.,Liu, Hanzhong.,Ma, Heng.,Hou, Jiapeng.,Qian, Liqun.,...&Zhang, Zhefeng.(2020).Role of Multi-Scale Microstructure in the Degradation of Al Wire for Power Transmission.APPLIED SCIENCES-BASEL,10(7),13.
MLA	Li, Rui,et al."Role of Multi-Scale Microstructure in the Degradation of Al Wire for Power Transmission".APPLIED SCIENCES-BASEL 10.7(2020):13.