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Corrosion investigation of rapidly solidified Cu- Al-Ni alloy in NaCl solution (CROSBI ID 668174)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Vrsalović, Ladislav ; Garvanović, Ines ; Kožuh, Stjepan ; Kosec, Borut ; Bizjak, Milan ; Ivanić, Ivana ; Gudić, Senka ; Gojić, Mirko Corrosion investigation of rapidly solidified Cu- Al-Ni alloy in NaCl solution // Proceedings of XX YuCorr International Conference / Pavlović, Miomir ; Pavlović, Miroslav (ur.). Beograd: Serbian Society of Corrosion and Materials Protection, 2018. str. 229-237

Podaci o odgovornosti

Vrsalović, Ladislav ; Garvanović, Ines ; Kožuh, Stjepan ; Kosec, Borut ; Bizjak, Milan ; Ivanić, Ivana ; Gudić, Senka ; Gojić, Mirko

engleski

Corrosion investigation of rapidly solidified Cu- Al-Ni alloy in NaCl solution

The corrosion behavior of the Cu-Al-Ni alloy ribbons obtained by rapid solidification was investigated in 0.9% NaCl solution (pH 7.4) at temperatures of 24, 37 and 50 ºC. Measurements have been performed by electrochemical methods such as monitoring the open circuit potential, linear and potentiodynamic polarization methods. The influence of chloride ions concentration on corrosion of Cu-Al-Ni ribbons has also been investigated in 0.1% and 1.5% NaCl solution. Results of the investigations have shown that an increase in chloride concentration and electrolyte temperature leads to increase the corrosion current density and decrease the polarization resistance values which mean higher corrosion attack on Cu-Al-Ni alloy. Microscopic images have shown significant pitting corrosion damages on the Cu-Al-Ni alloy surface. Increasing the electrolyte temperature increases the surface damages of the electrode due to more intense corrosion. SEM surface images of Cu-Al- Ni electrodes have confirmed that with the elevation of chloride concentration a more intense corrosion attack occurs. EDS surface analysis indicated dominant percentage of copper, chlorine and oxygen on the surface, indicating the formation of copper oxide and chloride as the major corrosion products on the surface. The presence of a small percentage of aluminum indicates its distribution in the form of aluminum oxide and chloride in the surface layer.

Cu-Al-Ni alloy, melt spinning method, corrosion, electrochemical methods

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Podaci o prilogu

229-237.

2018.

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objavljeno

978-86-82343-26-4

Podaci o matičnoj publikaciji

Proceedings of XX YuCorr International Conference

Pavlović, Miomir ; Pavlović, Miroslav

Beograd: Serbian Society of Corrosion and Materials Protection

Podaci o skupu

XX. Međunarodna konferencija stecište nauke i prakse u oblastima korozije, zaštite materijala i životne sredine = XX. International Conference Meeting Point of the Science and Practice in the Fields of Corrosion, Materials and Environmental Protection (YUCORR)

poster

21.05.2018-24.05.2018

Tara, Srbija

Povezanost rada

Kemijsko inženjerstvo, Metalurgija