Effect of Al/Cu Weight Fraction on the Mechanical and Electrical Properties of Al-Cu Conductors for Overhead Transmission Lines

• Autorzy: Han Deokhyun , Kim Geon-Hong , Kim Jaesung , Ahn Byungmin

Identyfikatory

DOI

10.24425/amm.2020.133210

• Języki publikacji: EN

Abstrakty

EN

In the past few years, overhead copper transmission lines have been replaced by lightweight aluminum transmission lines to minimize the cost and prevent the sagging of heavier copper transmission lines. High strength aluminum alloys are used as the core of the overhead transmission lines because of the low strength of the conductor line. However, alloying copper with aluminum causes a reduction in electrical conductivity due to the solid solution of each component. Therefore, in this study, the authors attempt to study the effect of various Al/Cu ratios (9:1, 7:3, 5:5) to obtain a high strength Al-Cu alloy without a significant loss in its conductivity through powder metallurgy. Low-temperature extrusion of Al/Cu powder was done at 350ºC to minimize the alloying reactions. The as-extruded microstructure was analyzed and various phases (Cu₉Al₄, CuAl₂) were determined. The tensile strength and electrical conductivity of different mixing ratios of Al and Cu powders were studied. The results suggest that the tensile strength of samples is improved considerably while the conductivity falls slightly but lies within the limits of applications.

Słowa kluczowe

EN

transmission line; aluminum; lightweight; extrusion; intermetallic; tensile

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2020
• Tom: Vol. 65, iss. 3
• Strony: 1019--1022
• Opis fizyczny: Bibliogr. 13 poz., fot., rys.

Twórcy

autor

Han Deokhyun

• Advanced Materials & Processing Center, Institute for Advanced Engineering, Youngin, Korea

autor

Kim Geon-Hong

• A.I. & Mechanical System Center, Institute for Advanced Engineering, Youngin, Korea

autor

Kim Jaesung

• A.I. & Mechanical System Center, Institute for Advanced Engineering, Youngin, Korea

autor

Ahn Byungmin

• Ajou University, Department of Materials Science and Engineering and Department of Energy Systems Research, 206 Worldcup-ro, Yeongtong-gu, Suwon, Gyeonggi, 16499, Korea

Bibliografia

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Uwagi

EN

1. This work was supported by the Technology Innovation Program (10082568, Development of 345 kV transmission cables which have 80 wt% lightweight core and 200% power transmission capacity compared to ACSR) funded By the Ministry of Trade, Industry & Energy (MOTIE, Korea).

PL

2. Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).