Nitro-V

Nitro-V - is a derived steel from AEB-L (similar to AEB steels from Udeholm or 14C28N from Sandvik) with the addition of N and V. The corrosion resistance is insufficient even after the addition of vanadium. The added nitrogen may slightly increase the corrosion resistance compared to AEB-L. The resulting hardness after appropriate heat treatment (annealing) reaches up to k 64 HRCbut it will drastically reduce toughness. If the annealing temperature is higher, Nitro-V can achieve lower hardness but good toughness and a very fine microstructure. Cryo-cycling (about an hour in liquid nitrogen to convert residual austenite to martensite) can then be used to increase hardness. It is clear that a decrease in both toughness and corrosion resistance results in reduced wear resistance of the facet.