The research focuses on the effects of locally sourced carbonaceous materials such as Animal bone, Snail shell, and Periwinkle Shell on the mechanical properties of mild steel carburized at varying treatment temperatures of 700, 800, 900, 1000, and 1100 °C, soaked for 5hr, 4hr, 3hr, 2hr, and 1hr at the respective treatment temperatures. The samples are tempered at 350°C for 45 minutes after being quenched in oil. Standard test samples were prepared from the as received specimen for tensile tests, wear tests, and micro hardness studies prior to the carburization procedure. Following the carburization procedure, the test samples were put through a series of routine tests to determine their ultimate tensile strength, case and core hardness values, wear rate, and wear resistance. The study indicated that each of the indigenously derived carbonaceous materials has a considerable influence on the mechanical properties of mild steels, as carbon solubility flows through the steel surface and diffuses into the component, increasing the surface carbon content. The depth to which the carbon diffuses, and hence the thickness of the "case," is determined by the control in time at temperature.
Author(S) Details
E. I. Dongo
Department of Metallurgical Engineering, Kogi State Polytechnic, Lokoja, Nigeria.
S. O. Seidu
Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure, Nigeria.
F. J. Ogbodo
Department of Metallurgical Engineering, Kogi State Polytechnic, Lokoja, Nigeria.
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