Organizational Field Forecast during Heavy Rail Quenching Process by Air Cooling

Abstract

Organizational field is a vital parameter in quenching process. the phase changing temperature of steel U71Mn was got based on its CCT curves. Through cooling curves of several key points, the cooling rate at phase transition point was calculated. By comparing with every microstructures critical cooling rate, the final cooling microstructure was predicted. Relative tests showed that the prediction was reasonable.