APPLICATION OF VN12 ALLOY IN V-N MICROALLOYED STEEL

The effect of vanadium-nitrogen combined microalloying on the mechanical properties of 20MnSiV and 16MnV microalloyed steels was investigated through the contrast tests of adding V-Fe（51.6%V） or nitrogen enriched vanadium alloy VN12（American priority product,80%V,12%N）,into 20MnSiV and 16MnV steels.Compared with VFe（51.6%V）,microalloying with nitrogen enriched vanadium alloy VN12 have good economical benefits due to vanadium saving.