Bainite transformation as a displacive decomposition of austenite.
نویسندگان
چکیده
منابع مشابه
Effect of austenite grain size and bainite morphology on overall kinetics of bainite transformation in steels
The effect of austenite grain size on the evolution of the bainite transformation in steels is not yet certain in spite of many investigations.1–7 Barford and Owen1 reported that the reaction rate was accelerated by decreasing the grain size, because of an increase in the number density of grain boundary nucleation sites. Umemoto et al.2 reported similar results and proposed an equation that de...
متن کاملIn-situ Observations of Lattice Parameter Fluctuations in Austenite and Transformation to Bainite
1 In-situ Observations of Lattice Parameter Fluctuations in Austenite and Transformation to Bainite S. S. Babu Formerly at Metals and Ceramics Division, Oak Ridge National Laboratory Oak Ridge, TN 37831 USA, Currently at Edison Welding Institute, Columbus, Ohio 43017, USA E. D. Specht and S. A. David Metals and Ceramics Division, Oak Ridge National Laboratory Oak Ridge, TN 37831 USA E. Karapetr...
متن کاملTime-Resolved X-ray diffraction Investigation of Austenite and Transformation to Bainite
In-situ time-resolved X-ray diffraction technique with synchrotron radiation was used to track austenite decomposition in steels. Measurements from a Fe-C-Si-Mn steel indicate two lattice parameters in the austenite, possibly due to the development of carbon-rich and carbon-poor austenite prior to transformation. The lattice parameter became uniform with the progress of transformation and the f...
متن کاملMechanism of Bainite Transformation in Fe-Cr-Mo-V-Ti-C Steel
The kinetics and mechanism of bainite transformation have been studied in Fe-Cr-Mo-V-Ti-C steel high speed dilatometry backed by thermodynamic analysis. The complete transformation of austenite, however, has not occurred at any reported temperature. Obtained results confirm the incomplete reaction phenomenon with the cessation of the bainite transformation well before the paraequilibrium is ach...
متن کاملExamination of carbon partitioning into austenite during tempering of bainite
The redistribution of carbon after tempering of a novel nanocrystalline bainitic steel consisting of a mixture of supersaturated ferrite and retained austenite has been analyzed by atom probe tomography. No direct evidence supporting the additional carbon enrichment of austenite beyond that initially achieved during the bainite heat treatment was obtained during subsequent tempering of this hig...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of the Japan Institute of Metals
سال: 1990
ISSN: 0021-4426,1884-5835
DOI: 10.2320/materia1962.29.542