Influence of Sub Structure Development within Rotary Swaged Al–Cu Clad Conductors on Skin Effect during Transfer of Alternating Current

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dc.contributor.authorKunčická, Lenkacs
dc.contributor.authorKocich, Radimcs
dc.contributor.authorKačor, Petrcs
dc.contributor.authorJambor, Michalcs
dc.contributor.authorJopek, Miroslavcs
dc.coverage.issue2cs
dc.coverage.volume15cs
dc.date.accessioned2022-02-15T11:55:55Z
dc.date.available2022-02-15T11:55:55Z
dc.date.issued2022-01-15cs
dc.description.abstractThe nature of alternating current transfer via metallic materials is specific, since the current density tends to be inhomogeneous across the cross-section of the conductor and the skin effect tends to occur. However, the influence of this effect on the behaviour of the conductor can be optimized via the design and fabrication procedures. The study presents innovative design of an Al–Cu clad conductor, which is supposed to affect favourably the influence of the skin effect. The clad conductors of various diameters (20 mm, 15 mm, and 10 mm) were fabricated via rotary swaging at room temperature, and their electric characteristics were subsequently examined both experimentally and via numerical simulations. Structure analyses performed to document the effects of the swaging technology on the development of substructure and characteristic structural features were carried out by scanning electron microscopy (electron backscatter diffraction analyses), and transmission electron microscopy. The results showed that the design of the composite has a favourable effect on decreasing the power losses during alternating current transfer and that the substructure development affected favourably the electric resistance of the conductor. The highest electric resistance was measured for the composite conductor with the diameter of 20 mm (1.8% increase compared to electric resistance during transfer of direct current). This value then decreased to 0.6%, and 0.1% after swaging down to the diameters of 15 mm, and 10 mm; the 10 mm composite featured the finest grains, partially restored structure, and texture randomization compared to the 20 mm and 15 mm composites. Manufacturing of the clad composite via rotary swaging imparted advantageous combinations of both the electric and mechanical properties, as swaging also introduced increased microhardnessen
dc.formattextcs
dc.format.extent1-19cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2022, vol. 15, issue 2, p. 1-19.en
dc.identifier.doi10.3390/ma15020650cs
dc.identifier.issn1996-1944cs
dc.identifier.other176300cs
dc.identifier.urihttp://hdl.handle.net/11012/203914
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/15/2/650cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectalternating currenten
dc.subjectskin effecten
dc.subjectrotary swagingen
dc.subjectclad compositeen
dc.subjectmicrostructureen
dc.titleInfluence of Sub Structure Development within Rotary Swaged Al–Cu Clad Conductors on Skin Effect during Transfer of Alternating Currenten
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-176300en
sync.item.dbtypeVAVen
sync.item.insts2022.03.18 16:56:14en
sync.item.modts2022.03.18 16:15:07en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav strojírenské technologiecs
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