Transactions of the Indian Institute of Metals

, Volume 70, Issue 10, pp 2601–2607 | Cite as

The Effect of Nickel Electroplating on Corrosion Behavior of Metal Matrix Composites

  • Dora Siva Prasad
  • Nitla Stanley Ebenezer
  • Chintada Shoba
Technical Paper
  • 101 Downloads

Abstract

Nickel electroplating was applied to A356.2 aluminum alloy and its composites for improving its corrosion resistance. The corrosion resistance of the A356.2 and composites reinforced with rice husk ash particulates was evaluated by potentio-dynamic polarization tests in aerated 3.5% NaCl solution. Composites were fabricated by using the liquid state processing technique. Scanning electron microscopy, energy dispersive spectroscopy, techniques were used for surface analysis of the coatings before the corrosion tests and optical microscope was used to study the surface morphology of the uncoated and coated specimens after polarization tests. Results demonstrated that the nickel coated specimens exhibited higher corrosion resistance than the uncoated specimens. However, it was noticed that there was no significant change in the corrosion resistance for the nickel plated composites.

Keywords

Electroplating Corrosion A356.2 RHA 

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Copyright information

© The Indian Institute of Metals - IIM 2017

Authors and Affiliations

  • Dora Siva Prasad
    • 1
  • Nitla Stanley Ebenezer
    • 1
  • Chintada Shoba
    • 2
  1. 1.Department of Mechanical EngineeringGITAM UniversityVisakhapatnamIndia
  2. 2.Department of Industrial EngineeringGITAM UniversityVisakhapatnamIndia

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