TY - JOUR
T1 - Monitoring of Corrosion of Aeromonas eucrenohila in the First Steps of Biofilm Formation on Nickel
AU - Nazir, H. AU - Tabrizi, A.P.F. AU - San, N.O. AU - Donmez, G.
JO - Journal of Engineering and Applied Sciences
VL - 7
IS - 5
SP - 372
EP - 378
PY - 2012
DA - 2001/08/19
SN - 1816-949x
DO - jeasci.2012.372.378
UR - https://makhillpublications.co/view-article.php?doi=jeasci.2012.372.378
KW - EIS
KW -nickel coatings
KW -microbiological corrosion
KW -polarization
KW -SEM
KW -FTIR
AB - The microbial corrosion behaviour of Ni in nutrient broth
and in the presence of Aeromonas eucrenophila, isolated from water treatment
system has been studied using electrochemical techniques such as Open Circuit
Potential (OCP), Quartz Crystal Microbalance (QCM), Tafel and Electrochemical
Impedance Spectroscopy (EIS). The electrochemical results declare the 1st stage
of biofilm formation of A. eucrenophila shows pseudoprotection effect
while increase the time accelerates the corrosion of nickel by increasing the
surface inhomogeneity. The formation of the biofilm and the roughness of the
nickel surface were characterized using Scanning Electron Microscopy (SEM) with
Energy Dispersive X-ray (EDX) analysis and FT-IR spectroscopy. In addition,
the pH values of the medium did not change throughout the experiment, however
after immersion in the medium with bacterium the pH value decreased to acidic
value and caused corrosion.
ER -