Changes in structure and properties of copper wire during the production and processing

Znanstveni rad - Izvorni znanstveni rad

• Autor: Ivan Jandrlić
• Autor: Franjo Kozina
• Autor: Tin Brlić
• Autor: Lorena Mrkobrada
• Urednik: Mrjam Jan-Blažič
• Autorova ustanova: Sveučilište u Zagrebu; Metalurški fakultet; (Zavod za mehaničku metalurgiju); (Laboratorij za obradu kovina deformiranjem)
• Znanstveno / umjetničko područje, polje i grana: TEHNIČKE ZNANOSTI; Metalurgija

Sažetak (engleski)

Irreplaceability of copper, as an electrical conductor, makes it the most important non-ferrous metal in application. The most frequently used methods of producing the copper conductors involves continuous casting of the copper wire, subsequent cold drawing deformation and heat treatment processes to improve copper mechanical and electrical properties. In this paper the research was performed on copper wire produced by continuous casting. During production various structural changes and changes in mechanical properties occur. To investigate those changes and to clarify their influence on final product, structure and hardness were recorded and measured in all stages of production. While macrostructure and microstructure were observed by light microscopy, the hardness was measured using Vickers hardness testing method. The results indicate that the initial coarse-grained structure in as-cast condition, brakes down into a fine- grained structure during reduction. Those fine grains are orientated in the direction of cold drawing during plastic deformation. There is an increase in the hardness. The purpose of heat treatment is to achieve better conductivity while maintaining good mechanical properties. The results of microstructure analysis indicate the presence of twin crystals in the structure of the final product

• Ključne riječi (engleski): copper wire; cold drawing; twin crystals; structure; hardness
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov zbornika: Abstract Proceedings 62nd IFC Portorož 2022
• Brojčani podaci: 41
• ISBN: 978-961-94793-5-3
• URN:NBN: urn:nbn:hr:115:521645
• Datum objave publikacije: 2022-09
• Projekt: Šifra: KK.01.1.1.02.0020; Naziv (hrvatski): Centar za ljevarstvo - SIMET; Naziv (engleski): Center for casting - SIMET; Kratica: SIMET; Voditelj: Zdenka Zovko Brodarac; Pravna nadležnost: Hrvatska; Financijer: Europska komisija; Linija financiranja: European Regional Development Fund
• Projekt: Šifra: KK.01.1.1.02.0022; Naziv (hrvatski): Virtulab – Integrirani laboratorij za primarne i sekundarne sirovine; Kratica: Virtulab; Pravna nadležnost: Hrvatska; Financijer: Europska komisija; Linija financiranja: European Regional Development Fund
• Skup: Naziv: 62nd IFC PORTOROZ 2023; Lokacija: Portorož, Slovenija; Organizator: Slovenian foundrymen society; Datum početka: 2022-09-14; Datum završetka: 2022-09-16; Vrsta izlaganja: Predavanje
• Vrsta resursa: Tekst
• Izdavač: Tisk Fleks d.o.o.
• Mjesto izdavanja: Ljubljana
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2024-04-24 12:01:45