Investigating the Properties of Electrodeposited of Ni-P-ZrC Nanocomposite Coatings

Abstract

Superior corrosion resistance along with higher mechanical performance is becoming a primary requirement to decrease operational costs in the industries. Nickel-based phosphorus coatings have been reported to show better corrosion resistance properties but suffer from a lack of mechanical strength. Zirconium carbide nanoparticles (ZCNPs) are known for promising hardness and unreactive behavior among variously reported reinforcements. The present study focuses on the synthesis and characterization of novel Ni-P-ZrC nanocomposite coatings developed through the electrodeposition technique. Successful coelectrodeposition of ZCNPs without any observable defects was carried out utilizing a modified Watts bath and optimized conditions. For a clear comparison, structural, surface, mechanical, and electrochemical behaviors of Ni-P and Ni-P-ZrC nanocomposite coatings containing 0.75 g/L ZCNPs were thoroughly investigated. The addition of ZCNPs has a considerable impact on the properties of Ni-P coatings. Enhancement in the mechanical properties (microhardness, nanoindentation, wear, and erosion) is observed due to reinforcement of ZCNPs in the Ni-P matrix, which can be attributed to mainly the dispersion hardening effect. Furthermore, corrosion protection efficiency (PE%) of the Ni-P matrix was enhanced by the incorporation of ZCNPs from 71 to 85.4%. The Ni-P-ZrC nanocomposite coatings provide an exciting option for their utilization in the automotive, electronics, aerospace, oil, and gas industry.

Probing into the properties of B4C reinforced nickel phosphorus-based nanocomposite coating

“…Co-deposition mechanism have been explained by various researchers for the formation of composite coatings, the summarized version of which is available in our previous articles [26]. In this study, we propose that initially iron dissolution from the substrate into the chemical bath takes place due to high temperature and lower pH of the chemical bath supporting the corrosion of the activated mild steel substrate.…”

“…After one hour at open circuit potential for stabilization, EIS experiments were carried out imposing an rms signal of 10 mV within the 10 5 e10 À2 Hz frequency range. Furthermore, the d.c. potentiodynamic polarization experiments were carried out at room temperature at a scan rate of 0.167 mVs À1 for a range of ±250 mV from open circuit potential prior to applying Tafel fit to determine the corrosion current and the corrosion potential [8,10,26].…”

Biolubricant Synthesis by Additization and Chemical Modification from Lipid-Rich Brackish Coelastrella sp. Using a Biorefinery Approach

“…Under normal loads of 20 N and with a sliding distance of 1000.8 m, this experiment was conducted at room temperature. The wear rate ( w s ) of the disk samples is calculated using the following formula. , w s = w l · L where w is the weight loss (g), l is the sliding distance (m), and L is credited to the applied load (N).…”

Effect of pulse reverse current waveform on tribological and mechanical properties of electrodeposited nickel–tungsten alloys on brass substrate

“…Moreover, NiW electrolytes used in this research activity have only 30 g.L −1 nickel sulphate hexahydrate (equivalent to 6.7 g.L −1 Ni) which is considered low concentrated Ni-based solution [5][6][7][8][9][10]. Various techniques such as vacuum-based methods, physical and chemical vapour deposition and electrodeposition have been used to produce NiW coatings.…”

“…However, among all electroplated Ni alloys, nickel–tungsten (NiW) coatings are in great deal of interests due to their excellent corrosion and wear resistance, high hardness and enhanced ductility. Moreover, NiW electrolytes used in this research activity have only 30 g.L −1 nickel sulphate hexahydrate (equivalent to 6.7 g.L −1 Ni) which is considered low concentrated Ni-based solution [5–10]. Various techniques such as vacuum-based methods, physical and chemical vapour deposition and electrodeposition have been used to produce NiW coatings.…”