O.O. Daramola^*, B.O. Adewuyi, I.O. Oladele

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Ajaokuta Steel Company Limited, Ajaokuta Steel City, Kogi State, Nigeria..
Metallurgical and Materials Engineering Department, Federal University of Technology, Akure,Ondo State, Nigeria.
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Abstract: Investigations were carried out to study the effects of heat treatment on the mechanical properties of rolled medium carbon steel. The steel was heated to the austenizing temperature of 830℃ and water quenched; It was reheated to the ferrite – austenite two phase region at a temperature of 745℃ below the effective Ac₃ point. The steel was then rapidly quenched in water and tempered at 480℃ to provide an alloy containing strong, tough, lath martensite (fibres) in a ductile soft ferrite matrix. The result shows that the steel developed has excellent combination of tensile strength, impact strength and ductility which is very attractive for structural use.

Keywords: Lath martensite, Ferrite, Austenite, Tensile strength and Ductility.

Cite this paper: O. Daramola, B. Adewuyi and I. Oladele, "Effects of Heat Treatment on the Mechanical Properties of Rolled Medium Carbon Steel," Journal of Minerals and Materials Characterization and Engineering, Vol. 9 No. 8, 2010, pp. 693-708. doi: 10.4236/jmmce.2010.98050.

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