ABSTRACT
The service conditions of many moving steel components require it to possess both hard and wear resistant surfaces witha tough and shock resistant cores. To achieve this, the suitability of pulverized coconut shell charcoal and periwinkle shell for carburizing 0.08%C mild steel was investigated in order to evaluate the carburizing parameters of the mild steel. The carburizing parameters evaluated were temperature, time and materials (ratio 75wt% pulverized coconut shell charcoal to 25wt% pulverized periwinkle shell). The results obtained revealed thateffective case depth and hardness values increased by increasing carburization temperature and time. Optimum hardness value of 630Hv was obtained at carburizing temperature of 950oC, carburizing time of 3 hours, carbon potential ratio of 75wt% pulverized coconut shell charcoal to 25wt% pulverized periwinkle shell and tempering temperature of 200oC with effective case depth of 2.50 mm, impact energy of 74 Joules and the wear rate of 2.023 × 10−2mm3/N/m. Hence,pulverized coconut shell charcoal and pulverized periwinkle shell can be effectively used as carburizing materials in the ratio of 75wt% pulverized coconut shell charcoal to 25wt% pulverized periwinkle shell to case hardened 0.08% C mild steel for engineering application
ABSTRACT
The study analysed the performance of students in three public and four private senior secondary schools within Giwa Education Z...
Background of the study
This study “Impact of Pornographic Materials on Youths” aims at identifying the infl...
BACKGROUND TO STUDY
For any organization to function very effectively is it big or small, the welfare o...
BACKGROUND OF THE STUDY
Glycerine (propan 1, 2, 3 triol) is a discovered soluble in soap lye and as a residue in c...
ABSTRACT
This study was carried out on impact of staff training and development on employees performance in Nigeria usin...
Abstract
Filter-based feature selection methods such as information gain, Gini index, and gain ratio are commonly used in machine learnin...
ABSTRACT
Information and Communication technology has been recognized to play pedagogic role that could in principle com...
ABSTRACT
The study examined the availability of instructional materials, its adequacy and relevancy...
AN ASSESSMENT OF TAXATION ISSUES AND COMPLIANCE CHALLENGES IN PUBLIC ACCOUNTING
This research assesses taxation issues and compliance cha...
Introduction
An intrusion detection system (IDS) monitors network traffic and monito...