Microstructure and corrosion behaviour of Ni-Ag and Ni-Cu composite coating for industrial applications

Senthilkumar, G.; Bharadwaj, S.; Akhil, R; Kaliaraj, Gobi Saravanan; Joy, Nivin; Ganesan, S.

doi:10.1063/5.0034166

Cited by 1 publication

(2 citation statements)

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“…This resulted in a finer grain structure, resulting in decreases of the surface roughness with increasing silver content. 21,22…”

Section: Resultsmentioning

confidence: 99%

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Effect of Ag content on the friction and wear properties of electrodeposited self-lubricating Ni–Ag coating

Chauhan,

Nadakuduru,

Mundotiya

2024

Tribology - Materials, Surfaces & Interfaces

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Thin film coatings are required to improve the performance of components to resist harsh environments as the modern industry grows. In this study, Ni–Ag coatings with various Ag content were deposited on the Cu surface using an electrodeposition technique. The Ni–Ag coatings were deposited to enhance the tribological properties of the coatings and increase the service life of the friction-sliding components. Ni–6wt%Ag, Ni–8wt%Ag, and Ni–10wt%Ag coatings were deposited. A solid solution of Ni–Ag was formed in the coatings. As the concentration of NiSO4 decreased in the electrolyte, the content of Ag in the coatings increased with the granular morphological characteristics. The increase in Ag content reduces the coefficient of friction (CoF) on comparing the initial running-in period and is stable after some time. The initial decrease was due to the surface roughness. The CoF and wear rate were low for all Ag contents compared to the copper substrate due to the effect of Ag solid lubricant material in prepared coatings.

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“…This resulted in a finer grain structure, resulting in decreases of the surface roughness with increasing silver content. 21,22…”

Section: Resultsmentioning

confidence: 99%

“…This resulted in a finer grain structure, resulting in decreases of the surface roughness with increasing silver content. 21,22 Tribological properties Figure 7 shows the CoF curves for tested coatings at RT for 15 min (or 900 s). It was observed that all the coatings had lower CoF compared to the substrate.…”

Section: Morphology and Microstructurementioning

confidence: 99%