Correlative study of Mott�Schottky analysis and corrosion behaviour of plasma electrolytic oxidation treated magnesium alloy: Effect of Cl� concentrations

Jangde, A and Kumar, S and Blawert, C (2024) Correlative study of Mott�Schottky analysis and corrosion behaviour of plasma electrolytic oxidation treated magnesium alloy: Effect of Cl� concentrations. In: Corrosion Science, 240 .

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Abstract

Semiconducting and corrosion properties of the plasma electrolytic oxidation treated AM50 magnesium alloy was correlatively investigated as a function of Cl� content. Semiconducting character transitioned from p � type (for 0.01 M Cl�) to n � type (for both 0.1 and 1 M Cl�). Corrosion potential moved progressively to noble potential with the increase in Cl� content. Variations of impedance modulus at lowest frequency employed (|Z|0.1 Hz), resistance of inner barrier layer (RIL), and corrosion current density with the Cl� content were correlated with the variations of the defect density, change in Ecorr � Efb. and thickness of space charge layer. © 2024 Elsevier Ltd

Item Type:	Journal Article
Publication:	Corrosion Science
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to publisher.
Keywords:	Corrosion resistance; Corrosive effects; Defect density; Electrochemical corrosion; Electrochemical oxidation; Electrolysis; Electrolytic analysis; Potentiodynamic polarization, Correlative study; Defects density; Electrochemical-impedance spectroscopies; Flat band potential, space charge layer; Flat-band potentials; N � type and p � type semiconducting character; P-type; Plasma electrolytic oxidation; Potentiodynamics polarization; Space charge layers, Magnesium alloys
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	23 Sep 2024 09:31
Last Modified:	23 Sep 2024 09:31
URI:	http://eprints.iisc.ac.in/id/eprint/86249

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