Casehardeningofmildsteelusingcowboneasenergiser.PDFVIP

African Journal of Engineering Research Vol. 1(4), pp. 97-101, October 2013 Full Length Research Paper Case hardening of mild steel using cowbone as energiser Paul Aondona Ihom Department of Mechanical Engineering, University of Uyo, PMB 1017, Uyo, Akwa Ibom State, Nigeria. Accepted 23 September, 2013 ABSTRACT In this study, various carburizing compounds were used to pack carburised mild steel. Various weight percentages of cow bone were used as energizer in the carburizing compounds. The experiment was carried out using a muffle furnace at 900°C for 8 h. Hardness tests were taken using Vickers micro-hardness tester. The result showed that 60 wt% charcoal / 40 wt% cowbone had the best result with an effective case depth of 2.32 mm produced on the case of the carburized steel. The work showed that cowbone can be used as energizer in pack carburization of mild steel. The hardness profile plot of the 60 wt% charcoal / 40% cowbone carburized mild steel was also higher than the other compositions. Keywords: Cowbone, energizer, case hardening, wear resistance, carbonates. E-mail: draondonaphilip@. INTRODUCTION Pack carburization or solid carburization uses solid carburization of mild steel. The operation was carried out carburizing material as the carbonaceous source. at temperatures of 850, 900, 950°C and soaking time of Commercial pack carburization utilizes energizers in the 15 and 30 min. Despite the short interval of soaking time, case hardening of mild steel. Different types of ener