Effect of C content on microstructural stability of retained austenite in martensitic microstructures during tempering
The effect of carbon content on microstructural stability of retained austenite in martensitic microstructures will be studied in 8 steels with carbon content ranging from 0.2 to 1%C. These microstructures have been developed by a thermal treatment consisting of austenitization at 1000ºC from 3 min followed by quenching to room temperature at 100ºC/s. Neutron diffraction measurements will be performed during a heating and cooling cycle between 20 and 975ºC at 8ºC/min. These data will be correlated with XRD patterns obtained on samples heated to a given temperature at the same rate and then quenched at RT. We expect from this combined analysis to determine: the actual amount of austenite at a given temperature, the temperature interval for the highest carbon enrichment of the austenite to optimize quenching and partitioning treatments, and verify the existence of an auto-temepering process during cooling to room temperature. Finally, the limitations and range of application of the most widely used methods (dilatometry and interrupted tempering tests) will be evaluated to determine the optimal conditions for steel processing.
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The recommended format for citing this dataset in a research publication is in the following format:
Jose A. Jimenez; LLORENTE CARRASCO Irene and PUENTE ORENCH Ines. (2023). Effect of C content on microstructural stability of retained austenite in martensitic microstructures during tempering. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-01-199
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