NDLI: Effect of the Current Density on Morphology, Porosity, and Tribological Properties of Electrodeposited Nickel on Copper

Content Provider	Springer Nature Link
Author	Lins, Vanessa F.C. Cecconello, Erik S. Matencio, Tulio
Copyright Year	2008
Abstract	In the steel industry, nickel coating on copper has increased the lifespan of continuous ingot casting molds. The objective of this work is to estimate the porosity of nanocrystalline nickel electrodeposited onto copper. Characteristics of nickel coating such as hardness, wear resistance, porosity, morphology, and adhesion are very important for maximum performance of molds. The effective porosity in nickel coating was determined by using anodic voltammetry. The porosity of electrodeposited nickel onto copper increased from 0.16% up to 6.22% as the current density increased from 1.5 up to 8.0 A dm$^{−2}$. The morphology of the nickel electrodeposited at lower current densities was more compact. Tribological properties were studied using hardness measurements, and calotest. Results of calotest indicated a wear coefficient of 10$^{−6}$ for all samples. An extremely low friction coefficient of 0.06-0.08 was obtained for the sample deposited with a current density of 1.5 A dm$^{−2}$, and a friction coefficient of 0.15-0.21 was measured for the nickel coating electrodeposited at a current density of 5 A dm$^{−2}$. Effects of the current density of the electrodeposition process on the morphology, porosity, and tribological properties were evaluated.
Starting Page	741
Ending Page	745
Page Count	5
File Format	PDF
ISSN	10599495
Journal	Journal of Materials Engineering and Performance
Volume Number	17
Issue Number	5
e-ISSN	15441024
Language	English
Publisher	Springer US
Publisher Date	2008-02-26
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	electroplating nanocrystalline nickel porosity wear Engineering Design Quality Control, Reliability, Safety and Risk Tribology, Corrosion and Coatings Materials Science Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Materials Science Mechanical Engineering

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