Effect of Preheat Treatment on Wear and Corrosion Rates of Copper Electrodeposition on Medium-Carbon Steel
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TECHNICAL ARTICLE—PEER-REVIEWED
Effect of Preheat Treatment on Wear and Corrosion Rates of Copper Electrodeposition on Medium-Carbon Steel D. T. Oloruntoba . O. S. Adesina . O. Falana . K. J. Akinluwade
Submitted: 17 May 2020 ASM International 2020
Abstract The work investigated the effects of pre-surface treatment on wear and corrosion rates of copper electrodeposition on medium-carbon steel. Medium-carbon steel samples were subjected to heat treatment (annealing, normalizing and quenching) in a muffle furnace. The samples were prepared and subjected to nickel striking and copper electroplating using standard bath composition. Electroplated samples were taken for weight test, optical microscopy, wear test and corrosion test. Result showed that the heat-treated copper-electrodeposited substrate had homogenous distribution of fine copper deposition, while the tempered heat-treated substrate was observed with the lowest wear rate of 3.5 9 10 3 g/mm3/min and lowest corrosion rate of 0.01833 mmpy in seawater environment of 0.5 M NaCl, thus having a low resistance to wear and corrosion in saline environment. This research has established that un-electroplated medium-carbon steel is highly corrosive in saline environment due to its higher corrosion D. T. Oloruntoba O. Falana Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, P.M.B. 704, Akure, Ondo State, Nigeria O. S. Adesina (&) Department of Chemical and Metallurgical Engineering, Tshwane University of Technology, P.M.B. X680, Pretoria 0001, South Africa e-mail: [email protected] O. S. Adesina Department of Mechanical Engineering, Landmark University, P.M.B. 1001, Omu-Aran, Kwara-State, Nigeria K. J. Akinluwade Department of Engineering, Prototype Engineering Development Institute (PEDI), National Agency for Science and Engineering Infrastructure, (NASENI), Ilesa, Nigeria
penetration rates, while the tempered heat-treated copperelectrodeposited steels are lowly corrosion resistant and therefore suitable for use as a good material of choice in saline environments. Keywords Medium-carbon steel Electrodeposition Copper Morphology Corrosion Wear resistance
Introduction Medium-carbon steel remains one of the most widely used materials in manufacturing industries owing to its unique mechanical properties and its availability. According to Momoh et al. [1], medium carbon combines moderate strength with excellent ductility and is used extensively for fabrication properties in the annealed or normalized condition for structural purposes. However, the corrosion and wear behavior of medium-carbon steel in service conditions have been a major limitation to the use of this kind of steel in certain environments. In recent times, there has been interest with the use of surface treatment technique such as electrodeposition technique to achieve particular improvement as regards properties like hardness, fatigue, corrosion as well as wear resistance of engineering materials [2–4]. According to Chen and Chang [5], electr
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