The Role of MX Carbonitrides for the Particle-Stimulated Nucleation of Ferrite in Microalloyed Steel

Abstract The role of titanium and vanadium carbonitrides (Ti,V)(C,N) the MX series on austenite-to-ferrite transformation in microalloyed steels their potential acting as pre-nuclei for intragranular ferrite nucleation is examined experimentally by computational simulation. Thermal treatments single-hit compression tests are performed a dilatometer Gleeble® 3800 thermomechanical simulator to investigate phase transition precipitation sequences within steel. analysis microstructure examination formed precipitates carried out using scanning electron microscopy (SEM) transmission (TEM). In situ observations realized via high-temperature laser confocal (HT-LSCM). experimental results compared kinetic simulations precipitates’ particle-stimulated formation an on-particle model surface carbonitrides. A particular focus comparison trends between non-deformed deformed samples. physically appropriate modeling kinetics combination with serves basis future industrial process optimizations without extensive work.