Pregled bibliografske jedinice broj: 324445
Cathodic Delamination Tests During the Initial Stage of Coating Cure in Seawater Performed under Various Polarization Regimes
Cathodic Delamination Tests During the Initial Stage of Coating Cure in Seawater Performed under Various Polarization Regimes // Corrosion and Material protection / Aki, Svuom (ur.).
Prag, 2007. str. 1-7 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 324445 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Cathodic Delamination Tests During the Initial Stage of Coating Cure in Seawater Performed under Various Polarization Regimes
Autori
Martinez, Sanja ; Valek, Lidija ; Kapor, Frankica
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Corrosion and Material protection
/ Aki, Svuom - Prag, 2007, 1-7
Skup
International Conference : Corrosion and Material Protection (1 ; 2007)
Mjesto i datum
Prag, Češka Republika, 01.10.2007. - 04.10.2007
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
cathodic protection ; epoxy coating ; cathodic delaminating
Sažetak
Cathodic delamination tests have been performed on steel plates protected by 100% solids, solvent free, epoxy coating intended for immersion service. To mimic the situations in which cathodic protection is on during the coating application or out of service until the coating application job is done, two types of experiments were conducted. Firstly, the plates were subjected to cathodic polarization potentials of -1.0, -1.1 and -1.4 VAg/AgCl starting immediately after coating application and continued for 30 days. Secondly, the experiments were done on identically prepared plates, at potentials of -1.4, to -1.0 VAg/AgCl, after 7, 21 and 28 days of immersion without polarization. All the tests were done on samples with and without the artificial coating defect. Cell voltage and current were recorded as a function of time. The results of the long term experiments show that the optimum potential that did not cause any coating delamination and that yielded the lowest current consumption due to the most favourable conditions for the formation of protective calcerous deposits is -1.1 VAg/AgCl. IR drop contributions of seawater, coating and calcerous deposit were assessed by off-potential measurements, with reference electrode tip located at different sites with respect to the coating damage.
Izvorni jezik
Engleski
Znanstvena područja
Kemija, Kemijsko inženjerstvo, Temeljne tehničke znanosti
POVEZANOST RADA
Projekti:
125-0822161-2982 - INHIBICIJA KOROZIJE PRIRODNIM SPOJEVIMA: OD MOLEKULSKIH MODELA DO PRIMJENE (Martinez, Sanja, MZOS ) ( CroRIS)
195-0831529-1847 - Ispitivanje trajnosti mineralnih brtvenih barijera (Kovačević Zelić, Biljana, MZOS ) ( CroRIS)
Ustanove:
Fakultet kemijskog inženjerstva i tehnologije, Zagreb,
Rudarsko-geološko-naftni fakultet, Zagreb
