Dynamic fatigue damage behaviors and mechanisms of overhead transmission Al wires at elevated temperatures

doi:10.1016/j.ijfatigue.2024.108515

IMR OpenIR

	Dynamic fatigue damage behaviors and mechanisms of overhead transmission Al wires at elevated temperatures
	Wang, Shuo 1,2; Hou, Jiapeng 2; Li, Chenghui 2,3; Gong, Baishan 2; Liu, Hanzhong 2; Li, Dongqing 4; Gu, Jian 4; Wang, Qiang 5; Zhang, Zhenjun 2; Zhang, Zhefeng 1,2; Li, Xiaowu 1
通讯作者	Hou, Jiapeng(jphou@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn) ; Li, Xiaowu(xwli@mail.neu.edu.cn)
	2024-11-01
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
ISSN	0142-1123
卷号	188 页码:12
摘要	With the increase in transmission demand, overhead conductors are always in hot service. In this work, the commonly used commercially pure Al wires and Al-Mg-Si wires were selected to carry out dynamic fatigue tests at elevated temperatures, to investigate the dynamic influences of temperature on their fatigue properties and damage mechanisms during cyclic deformation. The results show that the dynamic mechanical properties become degradated with increasing temperature due to the microstructural recovery, and such mechanical degradation is more severe for Al-Mg-Si wires. Besides, the fatigue crack initiation and propagation mechanisms were revealed using electron backscattering diffraction. Cracking at the grains with (0 01) ) orientation on surface is the major crack initiation mode. While, the crack propagation mechanism is divided into three stages, i.e., the propagation in the direction of a single slip system (Stage I), the propagation in the direction of multiple slip systems (Stage II), and the instability propagation in the direction of the maximum shear stress (Stage III). The dynamic evolution mechanism of the plane crack propagation regions with temperature was also studied, which is related to the critical stress and force for the crack instability propagation. Finally, a dynamic fatigue strength prediction model of Al wires was proposed.
关键词	Overhead Al wires Elevated temperature Dynamic fatigue Damage mechanism Fatigue strength prediction
资助者	National Natural Science Foundation of China (NSFC) ; IMR Innovation Fund ; Natural Science Foundation of Liaoning Province ; Zhongke Technology Achievement Transfer and Transformation Center of Henan Province ; Chinese Academy of Sciences (CAS)
DOI	10.1016/j.ijfatigue.2024.108515
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[52001313] ; National Natural Science Foundation of China (NSFC)[52130002] ; National Natural Science Foundation of China (NSFC)[52273322] ; National Natural Science Foundation of China (NSFC)[52271121] ; National Natural Science Foundation of China (NSFC)[52171108] ; IMR Innovation Fund[2023-PY05] ; IMR Innovation Fund[2024-PY08] ; Natural Science Foundation of Liaoning Province[2022-MS-001] ; Zhongke Technology Achievement Transfer and Transformation Center of Henan Province[2024109] ; Chinese Academy of Sciences (CAS)[174321KYSB20210002]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001277033300001
出版者	ELSEVIER SCI LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/188531
专题	中国科学院金属研究所
通讯作者	Hou, Jiapeng; Zhang, Zhefeng; Li, Xiaowu
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Dept Mat Phys & Chem,Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Liaoning Petrochem Univ, Sch Mech Engn, Fushun 113001, Peoples R China 4.China Elect Power Res Inst, Beijing 100192, Peoples R China 5.Liaoning Univ, Coll Light Ind, Shenyang 110036, Peoples R China
推荐引用方式 GB/T 7714	Wang, Shuo,Hou, Jiapeng,Li, Chenghui,et al. Dynamic fatigue damage behaviors and mechanisms of overhead transmission Al wires at elevated temperatures[J]. INTERNATIONAL JOURNAL OF FATIGUE,2024,188:12.
APA	Wang, Shuo.,Hou, Jiapeng.,Li, Chenghui.,Gong, Baishan.,Liu, Hanzhong.,...&Li, Xiaowu.(2024).Dynamic fatigue damage behaviors and mechanisms of overhead transmission Al wires at elevated temperatures.INTERNATIONAL JOURNAL OF FATIGUE,188,12.
MLA	Wang, Shuo,et al."Dynamic fatigue damage behaviors and mechanisms of overhead transmission Al wires at elevated temperatures".INTERNATIONAL JOURNAL OF FATIGUE 188(2024):12.