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Investigate the structural changes, which take place when steel is cooled at different rates and the effect these changes have on the material's properties.
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Heat Treatment of Steel Name: Andrew Holmes Student Number: 2103086 Course: BSc Forensic Science Year: 1 Unit: Material Science Date: 21/02/02 Introduction The purpose of this experiment is to investigate the structural changes, which take place when steel is cooled at different rates and the effect these changes have on the material's properties. The aims and objectives of the experiment were as follows: * To investigate the structural changes that occur when steel is cooled at different rates. * To investigate the effect of these structural changes on the material's properties by testing the hardness of the steel specimens using the Vickers Hardness Test. * To examine each specimen under an optical microscope. * To analyse the metallurgical structure of the steel specimens in each case and compare the rates each specimen was cooled with its hardness. Theory Hardness can be defined as the ability of a material to resist surface abrasion. A phase can be defined as a homogenous body of matter exiting in...
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