Journal of Advanced Materials and Technologies

Journal of Advanced Materials and Technologies

Effect of Tempertureon Properties and Corrosion Behavior of Electroplated Nickel- Graphene Composite Coating

Authors
Arash Rahimi 1
Mohammad Reza Vaezi 2
Mehdi Yari 1
1 Islamic Azad University, Department of corrosion, Science & Research Branch, Tehran, Iran
2 Materials & Energy research Center, Department of Nano Technology & Advanced materials, Tehran, Iran.
10.30501/jamt.2636.70312
Abstract
In this study the effect of electroplating bath temperature on the behavior of nickel-Graphene composite coating and also on the morphology and corrosion properties were investigated. For this reason nickel sulfamate additive free bath with grapheme were used. Electroplating process was carried out with DC generator and at three temperatures (35, 45, 55 °C ). surface morphology and crystallographic texture of electroplating nickel- grapheme were investigated with Field Emission Scanning Electron Microscope(FESEM).Corrosion behavior of nickel-Graphene coating were investigated with potential dynamic polarization test results.Results shown that to increases intemperature also will cause increases in Graphene Nano particles absorptionbut up to 50 °C the absorption of graphene reduce. Also increases in temperature will cause Graphene Nano particles agglomerated and lack of uniformity in the coating. As a result the corrosion resistance of the coating is reduced.
Keywords
composite coating
Electroplating
nickel
graphene
morphology
Corrosion Resistance
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Journal of Advanced Materials and Technologies
Volume 4, Issue 4
Winter 2015
Pages 19-26

  • Receive Date 01 January 2014
  • Revise Date 29 September 2015
  • Accept Date 03 February 2016