Corrosion behavior of a Ni–TiO2 nanocomposite coated by pulse electrodeposition

V. Sivaraman, N. Saravanakumar, Gukan Rajaram, Arunachalam Ramanathan, S. Venkatesan

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)219-229
Number of pages11
JournalHigh Temperature Material Processes
Volume22
Issue number4
DOIs
Publication statusPublished - Jan 1 2018

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Keywords

  • Corrosion behavior
  • Electrodeposition
  • Hardness
  • Nanocomposites
  • Salt spray test

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Engineering(all)
  • Spectroscopy
  • Physical and Theoretical Chemistry

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