3,4-Dimethoxybenzaldehydethiosemicarbazone as corrosion inhibitor for aged 18 Ni 250 grade maraging steel in 0.5 M sulfuric acid

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dc.contributor.authorPoornima, T.
dc.contributor.authorNayak, J.
dc.contributor.authorNityananda Shetty, A.N.
dc.date.accessioned2026-02-05T09:35:59Z
dc.date.issued2011
dc.description.abstractThe corrosion inhibition of the aged 18 Ni 250 grade maraging steel in 0.5 M sulfuric acid by 3,4-dimethoxybenzaldehydethiosemicarbazone(DMBTSC) has been investigated by potentiodynamic polarization and electrochemical impedance spectroscopy(EIS) techniques. The inhibition efficiency increased with the increase in inhibitor concentration and decreased with the increase in temperature. Polarization curves indicated mixed type inhibition behavior affecting both cathodic and anodic corrosion currents. The thermodynamic parameters of corrosion and adsorption processes were evaluated. The adsorption of DMBTSC on the aged maraging steel surface was found to obey the Langmuir adsorption isotherm model, and the calculated Gibb's free energy values confirm the spontaneous adsorption. The results obtained by the two techniques were in good agreement. © 2010 Springer Science+Business Media B.V.
dc.identifier.citationJournal of Applied Electrochemistry, 2011, 41, 2, pp. 223-233
dc.identifier.issn0021891X
dc.identifier.urihttps://doi.org/10.1007/s10800-010-0227-2
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/27300
dc.subjectAdsorption process
dc.subjectCathodic reaction
dc.subjectCorrosion current
dc.subjectCorrosion inhibition
dc.subjectEnergy value
dc.subjectInhibition
dc.subjectInhibition efficiency
dc.subjectInhibitor concentration
dc.subjectLangmuir adsorption isotherms
dc.subjectMaraging
dc.subjectMixed type
dc.subjectPolarization curves
dc.subjectPolarization resistance
dc.subjectSpontaneous adsorption
dc.subjectThermodynamic parameter
dc.subjectAdsorption
dc.subjectCorrosion prevention
dc.subjectElectrochemical corrosion
dc.subjectElectrochemical impedance spectroscopy
dc.subjectMaraging steel
dc.subjectPolarization
dc.subjectSulfuric acid
dc.subjectCorrosion inhibitors
dc.title3,4-Dimethoxybenzaldehydethiosemicarbazone as corrosion inhibitor for aged 18 Ni 250 grade maraging steel in 0.5 M sulfuric acid

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