| Role of Multi-Scale Microstructure in the Degradation of Al Wire for Power Transmission | |
| Li, Rui1; Liu, Hanzhong2,3,4; Ma, Heng1; Hou, Jiapeng2; Qian, Liqun1; Wang, Qiang2; Li, Xiaowu3,4; Zhang, Zhefeng2 | |
| Corresponding Author | Hou, Jiapeng(jphou@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn) |
| 2020-04-01 | |
| Source Publication | APPLIED SCIENCES-BASEL
 |
| Volume | 10Issue:7Pages:13 |
| Abstract | 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. |
| Keyword | commercially pure Al wire Al-Fe wire strength degradation electrical conductivity annealing treatment |
| Funding Organization | State Grid Corporation of China |
| DOI | 10.3390/app10072234 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | State Grid Corporation of China[5211HD180007] |
| WOS Research Area | Chemistry ; Engineering ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000533356200033 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139325 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Hou, Jiapeng; Zhang, Zhefeng |
| Affiliation | 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 |
| Recommended Citation 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. |
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