Effects of TiO<sub>2</sub> Particles Size and Heat Treatment on Friction Coefficient and Corrosion Performance of Electroless Ni-P/TiO<sub>2</sub> Composite Coatings
Vol. 50 No. 1 (2014), Content
Vol. 50 No. 1 (2014)

Effects of TiO<sub>2</sub> Particles Size and Heat Treatment on Friction Coefficient and Corrosion Performance of Electroless Ni-P/TiO<sub>2</sub> Composite Coatings

  • Elina Esmaeel Nad
  • Maryam Ehteshamzadeh
Elina Esmaeel Nad
Maryam Ehteshamzadeh

Abstract

UDC 621.7

 

The effects of the titanium dioxide (TiO2) particles size on the friction coefficient and corrosion performance of the Ni-P/TiO2 composite coatings before and after heat treatment at 400oC for 1h have been investigated. Pin-on-disc analysis results have revealed that the highest and the lowest friction coefficients belonged, respectively, to the simple Ni-P coating and the Ni-P/TiO2 composite coating containing TiO2 particles of the average size of 0.1 μm (μ ~ 0.62 against 0.52). Eventually, a relative reduction in the corrosion resistance and the friction coefficient (as low as μ ~ 0.38) have been observed after heat treatment of Ni-P and Ni-P/TiO2 composite coatings. 

 

Keywords: particle-reinforcement, friction, corrosion, EIS.

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