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The influence of plastic deformation and chemical environment on the resistively of al-alloy overhead lines

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Author(s): Nowak-Woźny D. | Mielcarek W. | Prociów K. | Woźny L. | Gajewski J.B.

Journal: Serbian Journal of Electrical Engineering
ISSN 1451-4869

Volume: 2;
Issue: 1;
Start page: 63;
Date: 2005;
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Keywords: overhead lines | al-alloy | resistively | microstructure | ageing | X-raydiffraction

ABSTRACT
The electrical resistively and intensity of X-ray diffraction reflexes were determined for overhead line wires deformed plastically and immersed at different solutions. Immersing (chemical ageing) was performed by plastic deformation along the wire axis. During chemical ageing the samples were exposed to the action of the Cl-, SO4 2-, and SO3 2- ions. Resistively was measured at room temperature and at liquid nitrogen temperature. After the X-ray and resistively measurement data were compared, it was found that three processes could take place: the flow of ions through the boundary between a sample and environment; the mechanical relaxation of vacancies near a line of dislocations, and the ordering of microstructure. These effects can lead to the anisotropy of resistively.
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