Evolution of Microstructure and Mechanical Properties with Different Partitioning Conditions of Q&P Steels
Q&P annealing cycles with different partitioning conditions were performed on cold rolled 0.2C-2.22Mn-1.44Si-0.21Cr steel. An important influence of partitioning temperature and time on the evolution of retained austenite fraction was shown through the saturation magnetization measurements. Such effect of partitioning conditions was also observed on the evolution of mechanical behavior. The evolution of microstructure and mechanical properties with the partitioning conditions was analyzed. Mechanical stability of retained austenite as a function of partitioning time was also assessed. Finally, modeling of the obtained stress-strain curves was performed and some explanations of the observed tendencies between partitioning conditions and tensile properties were proposed.
C. Sommitsch, M. Ionescu, B. Mishra, E. Kozeschnik and T. Chandra
A. Arlazarov et al., "Evolution of Microstructure and Mechanical Properties with Different Partitioning Conditions of Q&P Steels", Materials Science Forum, Vol. 879, pp. 1420-1425, 2017