Recovery of severely deformed ferrite studied by in situ high energy X-ray diffraction

Abstract

Highlights : Recovery of severely deformed ferrite was followed in situ by High Energy X Ray Diffraction during heating and isothermal holding experiments. Dislocation densities during annealing were determined by a modified Williamson Hall method. A saturation in recovery has been observed in all studied conditions whatever the holding temperature. The beginning of recrystallization is detected by a large density drop at 650 °C.

Martensite and nanobainite transformations in a low alloyed steel studied by in situ high energy synchrotron diffraction

“…The best alignment compromise for the three microstructures and all along the thermal treatments was obtained assuming equal density of edge and screw dislocations. Proportion of each dislocation type is hard to estimate experimentally and is often assumed constant and set to 0.5 [29,42,43]. Assuming different proportions (e.g.…”