Discontinuous cellular precipitation in a Cr–Mn–N steel with niobium and vanadium additions

The influence of niobium and vanadium additions on the precipitation behaviour in a 24Cr–18Mn–1N austenitic stainless steel is characterised during ageing at temperatures from 800 to 1100 °C. Niobium demonstrates a tendency to stabilise the cubic MX-type precipitates, whereas vanadium encourages the formation of hexagonal close-packed M2X-type precipitates. Vanadium, furthermore, promotes formation of M2X-type precipitates by the discontinuous...