AISTech 2022

Sessions Speakers Exhibitors Products Press Releases Show Specials Floor Plan Buzz

Microstructural Evolution During Normalizing Rolling of Niobium-Microalloyed Steels and Its Correlation With Toughness (Room 310)

Normalizing rolling (NR) requires a finishing rolling temperature range between 880°C and 920°C. It is very common to have partial austenite recrystallization between rolling passes in this temperature range, which impairs plate toughness. So, it is necessary to determine optimized NR process conditions and always comply with them. The use of a microstructural evolution tool as MicroSim®, which predicts the distribution of austenite grain size along hot rolling, can be extremely useful to reach such an aim. This paper describes the use of such tool to correlate NR process conditions with plate toughness in some industrial cases.