Evolution of microstructure and residual stress during annealing of austenitic and ferritic steels
- AGH—University of Science and Technology, WFiIS, al. Mickiewicza 30, 30-059 Kraków (Poland)
- AGH—University of Science and Technology, WIMIP, al. Mickiewicza 30, 30-059 Kraków (Poland)
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, ul. Reymonta 25, 30-059 Kraków (Poland)
- PIMM, UMR 8006, Arts et Métiers ParisTech (ENSAM), 151 Bd de l'Hôpital, 75013 Paris (France)
- AGH—University of Science and Technology, ACMIN, al. Mickiewicza 30, 30-059 Kraków (Poland)
In this work the recovery and recrystallization processes occurring in ferritic and austenitic steels were studied. To determine the evolution of residual stresses during material annealing the nonlinear sin{sup 2}ψ diffraction method was used and an important relaxation of the macrostresses as well as the microstresses was found in the cold rolled samples subjected to heat treatment. Such relaxation occurs at the beginning of recovery, when any changes of microstructure cannot be detected using other experimental techniques. Stress evolution in the annealed steel samples was correlated with the progress of recovery process, which significantly depends on the value of stacking fault energy. - Highlights: • X-ray diffraction was used to determine the first order and second order stresses. • Diffraction data were analyzed using scale transition elastoplastic models model. • Stress relaxation in annealed ferritic and austenitic steels was correlated with evolution of microstructure. • Influence of stacking fault energy on thermally induced processes was discussed.
- OSTI ID:
- 22587106
- Journal Information:
- Materials Characterization, Vol. 112; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
- Country of Publication:
- United States
- Language:
- English
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