The Morphology of Eutectic Copper Oxides I (Cu2O) in The Processing of Wire Rod and Wires made from ETP Grade Copper

• Autorzy: Zasadzińska M. , Knych T.

Identyfikatory

DOI

10.24425/amm.2019.130134

• Języki publikacji: EN

Abstrakty

EN

Eutectic copper oxides (Cu₂ O) crystallize during the copper solidification process in the ETP grade copper which leads to high oxygen concentrations in interdendritic spaces. It has been experimentally found that they can be regular or elongated, and their size reaches several micrometres. During the multi-cage hot rolling process, homogenization of the oxide distribution in the entire volume of the wire rod occurs. This process is carried out in the soft copper matrix. Throughout the drawing process the fragmentation of oxides transpires along with changes in the shape from angular to more oval in a degree depending on the size of the deformation (wire diameter). Microcracks, fissures and local stress fields in the reinforced copper matrix arise around the oxide particles. The article presents the results of research on the evolution of copper oxides in ingots, wire rods and wires. The results of investigations of the wires properties and the limitations of the drawing process, especially of microwires, are presented.

Słowa kluczowe

EN

Cu-ETP; Eutectic copper oxides Cu2O; evolution of Cu2O; fragmentation of oxides

• 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: 2019
• Tom: Vol. 64, iss. 4
• Strony: 1611--1616
• Opis fizyczny: Bibliogr. 17 poz., fot., rys.

Twórcy

autor

Zasadzińska M.

• AGH University of Science and Technology in Krakow, Faculty of Non-Ferrous Metals, Al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Knych T.

• AGH University of Science and Technology in Krakow, Faculty of Non-Ferrous Metals, Al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

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