Zirconium Dioxide (ZrO2) Thermal Barrier Coatings (TBCs) were produced on nickel based superalloys (Inconel-625) by plasma spray coatings. Hot corrosion behaviour of the ZrO2 TBCs was investigated in presence of K2SO4–40%NaCl at 800 °C in air oxidation and molten salt environment under cyclic conditions for 50 cycles. The thermo-gravimetric technique was used to establish the kinetics of corrosion. The corrosion products have been analysed using the SEM and EDS analysis. Results show that the ZrO2 coating exhibits superior stability in air oxidation to molten salt environment against hot corrosion. © 2014, Sphinx Knowledge House. All rights reserved.

Manikandan M

Department of Design and Automation

School of Mechanical Engineering

Vellore Campus

Arivarasu M

Arivazhagan N

Department of Manufacturing Engineering

K. Katiki

S. Yadlapati

S.N.S. Chidepudi

P.R. Hari

K. Devandranath Ramkumar

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

International Journal of ChemTech Research

Comparative high temperature corrosion studies on Zirconium Dioxide coated inconel 625 in air and molten salt environment

Journal	International Journal of ChemTech Research
Publisher	Sphinx Knowledge House
ISSN	09744290