2020
DOI: 10.3390/app10072234
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Role of Multi-Scale Microstructure in the Degradation of Al Wire for Power Transmission

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… Show more

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Cited by 4 publications
(5 citation statements)
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“…2, 5, 7, 8, the volume fraction of precipitating (fv) Al3X particles will be noticeably higher than in other alloys (alloys No. 1,3,4,6). Table 1 shows that alloys No.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…2, 5, 7, 8, the volume fraction of precipitating (fv) Al3X particles will be noticeably higher than in other alloys (alloys No. 1,3,4,6). Table 1 shows that alloys No.…”
Section: Discussionmentioning
confidence: 99%
“…Such a modern aircraft onboard network is several kilometers long, that is why replacement of copper wires with aluminum ones helps reduce the weight of an onboard network and improve the efficiency of aviation technology. Thin aluminum wires find applications in the automotive industry [3] and in the modern power industry [4]. Eutectic aluminum alloys with a high content of rare earth elements (REEs) and commercial conductor Al-Mg-Si alloys are often used to produce wires [1,2,5,6].…”
Section: Introductionmentioning
confidence: 99%
“…At present, the research on the power grid prevention is mainly divided into two aspects [1] . On the one hand, it is for the condition monitoring of the line poles and towers, including the pole and tower tilt, settlement and displacement monitoring [2] .…”
Section: Related Workmentioning
confidence: 99%
“…High strength and electrical conductivity are the key characteristics of the conductor aluminum alloys. At usual methods of processing of commercial purity aluminum or ultra-low-doping commercial aluminum alloys, high strength and electrical conductivity are hardly compatible [6][7][8][9][10][11][12][13][14][15][16]. One of approaches to the development of novel conductor aluminum alloys is their doping with the elements, which affect the electrical conductivity weakly but affect their strength positively.…”
Section: Introductionmentioning
confidence: 99%
“…Modern automotive and aviation technology imposes more and more high requirements to the fine wires in strength and thermal stability of the microstructure, which cannot be met using commercial aluminum alloys anymore. In this connection, aluminum alloys modifications of Al-Mg-Si system alloys [11,16,[28][29][30][31][32][33][34][35][36] (commercial alloys of 6XXX series [28,32,33,36,[38][39][40], Al-Mg-Si-Zr alloys [30], Al-Mg-Si-(Ni,Fe) + (Sc,Zr) [37], Al-Mg-Si-Cu [41], et al), conductor alloys Al-Fe [8,[42][43][44] and novel aluminum alloys multidoped with various rare earth elements (REEs) and transition metals (TMs) -zirconium, scandium, hafnium, yttrium, etc. are being developed extensively [45][46][47][48][49][50][51][52][53][54][55][56].…”
Section: Introductionmentioning
confidence: 99%