Abstract
Micro alloyed steels are used in automotive components in as-forged condition without the need for subsequent quenching and tempering. The effect of deformation temperature and cooling rate on microstructural and mechanical properties of commercially available micro alloyed steel has been investigated. The final microstructure and mechanical properties of micro alloyed forged components were analyzed. In all conditions ferrite is present at austenite grain boundary with pearlite as the matrix. The results of 1,150 °C deformed normal cooled up to 650 °C and water quenched steel has good combination of strength and ductility while impact energy decreased. The formation of fine grains in water quenched steel marginally increases strength and ductility. The higher volume fraction of ferrite in air cooled steel improves impact energy absorption.
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