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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes
ESCI SJR: 0.176 SNIP: 0.48 CiteScore™: 1.3

ISSN Druckformat: 1093-3611
ISSN Online: 1940-4360

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

DOI: 10.1615/HighTempMatProc.2018020876
pages 219-229

CORROSION BEHAVIOR OF A Ni–TiO2 NANOCOMPOSITE COATED BY PULSE ELECTRODEPOSITION

V. Sivaraman
Mechanical Engineering, Dr N.G.P. Institute of Technology, Coimbatore, Tamilnadu, India
N. Saravanakumar
Mechanical Engineering, PSG Institute of Technology and Applied Research, Coimbatore, Tamilnadu, India
Gukan Rajaram
Mechanical Engineering, PSG College of Technology, Coimbatore, Tamilnadu, India
R. M. Arunachalam
Mechanical Engineering and Industrial Engineering, College of Engineering, Sultan Qaboos University, P.O. Box 33, Al Khod 123, Sultanate of Oman
S. Venkatesan
Mechanical Engineering, Dr N.G.P. Institute of Technology, Coimbatore, Tamilnadu, India

ABSTRAKT

The present study illustrates corrosion behavior of Ni–TiO2 composite coatings, electrodeposited on a tool steel A2 grade substrate. Titanium oxide nanoparticles were codeposited with Ni on the tool steel A2 grade substrate using a pulse electrodeposition method. The experiments were carried out using different combinations of the pulse parameter and response surface methodology. Experiments were conducted to study the effect of pulse parameter. The microstructure, hardness, corrosion behavior were studied by means of SEM, XRD, microhardness tester, and salt spray test methods. Evaluation of the coated surface indicates an improved microhardness value of about 10-20% of base material with enhanced corrosion resistance.


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