Abstract
NiCo alloy coatings were galvanostatically electrodeposited at room temperature from sulfate bath using saccharin (0 to 12gL−1) as an additive agent. These alloy coatings were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic absorption spectroscopy (AAS), contact angle, microhardness, Electrochemical impedance spectroscopy (EIS), salt immersion test and tribology techniques. The XRD study confirmed the formation of Ni–Co alloy with a face centered cubic (FCC) structure. Depending on saccharin addition, the Co content varied from 27 to 7at.%. The microhardness and corrosion resistance showed enhancement due to saccharin addition. Ni–Co alloy with a 12at.% Co content obtained from 10gL−1 saccharin addition showed reduced grain size (12nm) and hydrophobic surface (113°) with the highest corrosion and wear resistant values as compared to others. Such coating on medium carbon steel fasteners showed significant enhancement in corrosion protection during salt immersion test.
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.
