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Kemija u industriji : Časopis kemičara i kemijskih inženjera Hrvatske, Vol. 69 No. 9-10 (special issue), 2020.

Izvorni znanstveni članak

https://doi.org/10.15255/KUI.2020.022

Intergranular Corrosion of Cu-Al-Ni Alloy in 0.5 mol dm–3 H2SO4 Solution

Ladislav Vrsalović orcid id orcid.org/0000-0001-6111-5475 ; Sveučilište u Splitu, Kemijsko tehnološki Fakultet, Zavod za elektrokemiju i zaštitu materijala, Ruđera Boškovića 35, 21 000 Split, Hrvatska
Senka Gudić ; Sveučilište u Splitu, Kemijsko tehnološki Fakultet, Zavod za elektrokemiju i zaštitu materijala, Ruđera Boškovića 35, 21 000 Split, Hrvatska
Lana Terzić orcid id orcid.org/0000-0002-8700-536X ; Sveučilište u Splitu, Kemijsko tehnološki Fakultet, Zavod za elektrokemiju i zaštitu materijala, Ruđera Boškovića 35, 21 000 Split, Hrvatska
Ivana Ivanić orcid id orcid.org/0000-0002-6375-1448 ; Sveučilište u Zagrebu, Metalurški fakultet Zagreb, Zavod za fizičku metalurgiju, Aleja narodnih heroja 3, 44 000 Sisak, Croatia
Stjepan Kožuh ; Sveučilište u Zagrebu, Metalurški fakultet Zagreb, Zavod za fizičku metalurgiju, Aleja narodnih heroja 3, 44 000 Sisak, Croatia
Mirko Gojić ; Sveučilište u Zagrebu, Metalurški fakultet Zagreb, Zavod za fizičku metalurgiju, Aleja narodnih heroja 3, 44 000 Sisak, Croatia
Emeka Emmanuel Oguzie orcid id orcid.org/0000-0003-2708-9298 ; Federal University of Technology Owerri, Africa Centre of Excellence in Future Energies and Electrochemical Systems (ACE-FUELS), PMB 1526, Owerri, Nigerija

Puni tekst: engleski pdf 1.121 Kb

str. 457-464

preuzimanja: 475

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Sažetak

The corrosion behaviour of Cu-Al-Ni alloy in 0.5 mol dm–3 H2SO4 solution was investigated by electrochemical methods including open circuit potential measurement, electrochemical impedance spectroscopy measurements, linear and potentiodynamic polarization. Measurements were performed in 0.5 mol dm–3 H2SO4 at temperatures 20 and 40 °C. After polarization testing, corroded electrode surfaces were ultrasonically cleaned in deionized water and examined by light and scanning electron microscopy, while the elemental composition at individual points of the alloy surface was determined by EDS analysis. The results of the investigations revealed the occurrence of intergranular corrosion on the Cu-Al-Ni surface, which became more pronounced with increasing temperature.




This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi

shape memory alloy; Cu-Al-Ni alloy; corrosion; polarization; SEM/EDS

Hrčak ID:

243901

URI

https://hrcak.srce.hr/243901

Datum izdavanja:

24.9.2020.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.655 *