Normalization experiment research has been carried out for the medium carbon microalloy vanadium steel The results indicated that the normalized steel has better strength toughness and good toughness at low temperature It can be used in replacing low alloy hardened and tempered stee

Influence of carbon content on the formation of intragranular ferrite in isothermally treated medium-carbon vanadium-microalloyed steels;

Influence of isothermal treatment on formation of intragranular ferrite in medium-carbon vanadium-microalloyed steel;

The strengthening theory and process improvement of vanadium microalloying are introduced.

Practical production show that the products synthetical performances are good by V micro-alloying and recrystalization rolling technology.

Based on thermo-mechanical simulation and hot rolling experiments in laboratory,effects of different hot rolling parameters on microstructures and mechanical properties of micro-alloyed steel containing vanadium are investigated by using optical microscopy and mechanical analysis.