Alaneme, Kenneth Kenayo, Federal University of Technology Akure, School of Engineering and Engineering Technology, Department of Metallurgical and Materials Engineering, PMB 704, 340001 Akure, Ondo, Nigeria Faculty of Mining, Metallurgy and Chemical Engineering, Center for Nanoengineering and Tribocorrosion, Cnr Siemert and Beit Street, 2094 Doornfontein, South Africa