Sliding Wear Characteristics of Silver Particles Incorporated Electroless Nickel Phosphorus Composite Coatings
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In the present investigation, nickel–phosphorus coatings embedded with silver particles are deposited on AISI 1018 steel substrate using an electroless deposition technique. Ni–P/Ag composite coatings were heat-treated at 400 °C for 1 h, and the influence of heat treatment on tribological properties was discussed. The as-deposited (AD) and heat-treated (HT) coatings were subjected to wear test under room temperature and 300 °C sliding conditions. The results indicated that the better tribological performance was observed for the HT Ni–P/Ag coatings tested at room temperature, which is attributed to the combined effect of self-lubrication and higher hardness. Wear track characterization was carried out using a scanning electron microscope (SEM) to understand wear mechanisms.
KeywordsElectroless Ni–P Silver particles Heat treatment Sliding wear
The authors are thankful to SERB, Department of Science and Technology, New Delhi, for funding to carry out this research work under the grant: ECR/2016/000654.
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