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

Autori
Jandrlić, Ivan ; Kozina, Franjo ; Brlić, Tin ; Mrkobrada, Lorena

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Abstract Proceedings 62nd IFC Portorož 2022 / Jan-Blažič, Mrjam - Ljubljana : Tisk Fleks d.o.o., 2022

ISBN
978-961-94793-5-3

Skup
62nd IFC PORTOROZ 2023

Mjesto i datum
Portorož, Slovenija, 14.09.2022. - 16.09.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
copper wire, cold drawing, twin crystals, structure, hardness

Sažetak
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

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija, Interdisciplinarne tehničke znanosti

Napomena
Glavni autor: Ivan Jandrlić

POVEZANOST RADA