Naslov
INHIBITING EFFECT OF 2-MERCAPTOBENZIMIDAZOLE FOR PROTECTION OF Cu-6Sn BRONZE

Autori
K. Marušić, H. Otmačić Ćurković, M. Warde, Z. Hajdari, L. Škrlep

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
3 rd Regional Symposium on Electrochemistry of South-East Europe / Eleonora-Mihaela Ungureanu - Bukurešt : Romanian Chemical Society, 2012

Skup
3rd Regional Symposium on Electrochemistry of South- East Europe

Mjesto i datum
Bukurešt, Rumunjska, 13.05.2012. - 17.05.2012

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
Corrosion inhibitor; electrochemical impedance spectroscopy

Sažetak
Cu-6Sn bronze is a copper alloy, wear- resistant, well solderable, corrosion resistant in various environments and good for cold forming. Thus, its application is wide. When exposed to atmosphere a thin greenish film of corrosion products, called patina, is formed on bronze. The patina is decorative, but also protects the bronze. This is another reason it is often used in civil engineering, for rooftops, and by artists for sculptures. Such bronze objects are often exposed to urban atmospheres. Due to increased environmental pollution, especially occurrence of acid rain, bronze objects dissolve with time. The aim of this research is to experimentally determine the impact of polluted urban atmosphere on the corrosion of bronze, and to explore the possibility of applying a corrosion inhibitor to protect it. A polluted urban atmosphere in the experiments is simulated with a Na2SO4 + NaHCO3 solution at pH 3. The investigated inhibitor is 2- mercaptobenzimidazole. Corrosion of bronze and its inhibition were examined by polarization methods and electrochemical impedance spectroscopy.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

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