Thermomechanical processing of microalloyed bar steels for induction hardened components
Thermomechanical processing (TMP) of microalloyed steels has been shown to produce refined microstructures by austenite grain boundary pinning and elevation of the austenite no-recrystallization temperature. This project investigated the effects of chemical composition (specifically, Al, V, and Nb), thermal and thermomechanical processing variations in preconditioning 1045 steel bars for subsequent induction hardening in order to achieve refined prior austenite grain sizes and improved mechanical performance. Multistep hot torsion on a Gleeble® 3500 was utilized to simulate hot rolling and TMP ...
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