Abstract
In this paper, nickel-based alloy coatings were deposited on the surface of pure copper by jet electrodeposition. The wear resistance of the coatings was studied by a material surface comprehensive performance tester under dry sliding. Hardness testing, friction, and wear testing were performed to characterize the microhardness, surface morphology, and wear resistance of the coatings. The results indicated that adding Fe and W could refine and purify the microstructure. The coatings with additions of 5 wt.% Fe and 7 wt.% W exhibited the highest wear-resistant properties. Moreover, new compound phases NiO, Fe2O3, and WO3 were found on the surface coatings, such that the microhardness was higher than that in the other coatings. Detailed discussions on the influences of Fe and W on the sliding wear are presented.
Highlights
Ni-based alloy coatings have been widely used as wear materials [1,2,3,4,5,6]. e most commonly employed Ni-based alloy coatings are NiFe, NiW, and NiFeW
Compared to the conventional coating methods, jet electrodeposition processing results in higher adhesive bonding, less porosity, a more compact microstructure [13, 15], higher hardness, and better wear resistance. e jet electrodeposition can use high current density and plating speed. e coating is more resistant to high-temperature oxidation
Ni-based alloy coatings have been deposited on pure copper using jet electrodeposition, aiming to study the wear resistance of Nibased alloy coatings under dry sliding conditions against 45# steel at ambient conditions
Summary
Ni-based alloy coatings have been widely used as wear materials [1,2,3,4,5,6]. e most commonly employed Ni-based alloy coatings are NiFe, NiW, and NiFeW. Previous studies on Ni-based alloy coatings mainly focused on sliding wear properties. Ni-based alloy coatings have been deposited on pure copper using jet electrodeposition, aiming to study the wear resistance of Nibased alloy coatings under dry sliding conditions against 45# steel at ambient conditions. The study of friction and wear mechanisms provides an experimental basis for the application of Ni-based alloy coatings. 2. Experiment e Ni-based alloy coatings were deposited on pure copper by jet electrodeposition. E substrate was first immersed in a 15 g/L NaOH, 25 g/L Na2CO3, 25 g/L Na3PO4, and 1 ml/L of OP-10 mixed solution to remove cutting oils and washed in 60°C–70°C hot water and cold water, respectively. A current density (DK) of 60 A/dm, a pH value of 4.0, a temperature of 60°C, jet speed of 3 m/s, and a copper (as the cathode material) were used for Ni coating
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
