Effect Of Size And Shape Of Specimen On Hardness Of Steel Through Heat Treatment

Nor Shaufina , Md Ja'afar (2008) Effect Of Size And Shape Of Specimen On Hardness Of Steel Through Heat Treatment. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The present material analysis experiment is only focused on the effect of temperature, time and quenching media in order to investigate the hardness of steel. Thus, this experimental study comes with the aims of improving the existing experiment of heat treatment. This experimental study wants to investigate and verify whether the size and shape affect the hardness of steel. The hardness is measured on the surface of steel using the repetitive measurement in order to construct the statistical analysis. This experimental study also includes the achievement of the design of experiment. The emphasis of this study is to measure the hardness characteristics using the specimen of low carbon steel. By using the quenching process, the steel was heat-treated to the austenite temperature. The hardness testing is performed using the Rockwell hardness test with the diamond indenter and the D-scale. As the investigation and statistical analysis is done in this experimental study, the verification of size and shape were affecting the hardness of steel is identified. The different of size and shape gives the different hardness value, thus indicate the effect on hardness of steel. So the aim of improving and designing the existing heat treatment experiment is achieved and the details study is made of this findings.

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