2011
DOI: 10.4152/pea.201104295
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Corrosion Behaviour of Stainless Steel 304 Electroplated with Zinc Followed by Blue Passivation

Abstract: The corrosion resistance of three stainless steel materials, namely, stainless steel (SS), stainless steel electroplated with zinc (SS-Zn) and stainless steel electroplated with zinc followed by blue passivation (BP), has been evaluated in an aqueous solution containing 3.5% NaCl. A potentiodynamic polarization study and AC impedance spectra have been used to investigate the corrosion behaviour of these metals. The corrosion resistance of these materials in 3.5% NaCl increased in the following order: SS>SS+Zn+… Show more

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Cited by 6 publications
(4 citation statements)
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“…In fact, according to the Nernst equation, the equilibrium potential increases with the increase in activity, i.e., the increase in the effective concentrations of oxidized substances 27,30 . Studies by SANTOS 18 and RIBEIRO et al 27 confirm this behaviour and show an inverse correlation between the corrosion potential and the moisture content of the concrete, indicating that an increase in moisture content implies a decrease in the measured rebar corrosion potential. .…”
Section: Corrosion Potentialmentioning
confidence: 82%
See 1 more Smart Citation
“…In fact, according to the Nernst equation, the equilibrium potential increases with the increase in activity, i.e., the increase in the effective concentrations of oxidized substances 27,30 . Studies by SANTOS 18 and RIBEIRO et al 27 confirm this behaviour and show an inverse correlation between the corrosion potential and the moisture content of the concrete, indicating that an increase in moisture content implies a decrease in the measured rebar corrosion potential. .…”
Section: Corrosion Potentialmentioning
confidence: 82%
“…According to Sherine et al 18 and Panek et al 19 , when black steel is electroplated with zinc, lower values of corrosion potential are associated with a high probability of corrosion. These values are equal to -274 mV for ordinary rebars, -953 mV for rebars electroplated with zinc-nickel and -1043 mV for rebars electroplated with zinc, to saturated calomel electrode (SCE), see Table 1.…”
Section: Introductionmentioning
confidence: 99%
“…The coated samples showed higher R ct values than the bare substrate, whereas the Al 2 O 3 -inserted CrN coating (sample 4) presented a further increase in R ct as compared to that of the pure CrN coating. Typically, an oxide passivation layer can easily form on the surface of bare SUS304 substrate, which results in a relatively high R ct at the steel–electrolyte interface. , However, dissolution and failure of the passivation layer will occur during exposure to corrosive medium or the electrochemical testing process, which lead to a reduction of R ct . The CrN coating was considered to have prevented the failure of the passive layer against corrosive medium, which resulted in the higher R ct value as compared with that of bare SUS304. Similar results were also reported by others .…”
Section: Resultsmentioning
confidence: 99%
“…These magnetic particles can be magnetized and have a size range from 3 to 15 nanometers. The performance of these particles relies on the existence of a magnetic field and hence the fluid can be used for different applications including corrosion inhabitation [17][18][19].…”
Section: Nano Ferrites As Corrosion Inhibitorsmentioning
confidence: 99%