Electrochemical Behavior of Plasma-Sprayed Stainless Steel
Anushraj B1, Winowlin Jappes J T2, Adam Khan M3, Dillibabu V4, Brintha N C5
1Anushraj B, Department of Mechanical Engineering, Kalasalingam Academy of Research & Education College, Virudhunagar (Tamil Nadu), India.
2Winowlin Jappes J T, Department of Mechanical Engineering, Kalasalingam Academy of Research & Education College, Virudhunagar (Tamil Nadu), India.
3Adam Khan M, Department of Mechanical Engineering, Kalasalingam Academy of Research & Education College, Virudhunagar (Tamil Nadu), India.
4Dillibabu V, Scientist, Small Turbo Fan Section, Gas Turbine Research Establishment (GTRE), DRDO, Bangalore (Karnataka), India.
5Brintha N C, Department of Computer Science and Engineering, Kalasalingam Academy of Research and Education College, Virudhunagar (Tamil Nadu), India.
Manuscript received on 24 November 2019 | Revised Manuscript received on 18 December 2019 | Manuscript Published on 30 December 2019 | PP: 892-895 | Volume-9 Issue-1S4 December 2019 | Retrieval Number: A10641291S419/19©BEIESP | DOI: 10.35940/ijeat.A1064.1291S419
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The effect of electrochemical behavior of plasma sprayed NiCr–Cr2O3 (80:20) and Al2O3– 40% TiO2 as coating on stainless steel 316L were investigated. The polarization studies were carried out in 1.0M H2SO4 and 3.5% NaCl solution as a corrosive medium. The corrosion potential is more positive in the coated sample and gives good corrosion resistance when compared to bare sample. The surface characterization studies were carried out through electron microscope attached with energy dispersive spectroscopy. It was found that intergranular attack and pitting corrosion takes place in the sample exposed in 1.0M H2SO4 and large crater was found in the sample exposed in 3.5% NaCl solution.
Keywords: Corrosion, Coating, Polarization.
Scope of the Article: Mechanical Maintenance