Deformation-intensified atomic separation in bcc Fe–Mn alloys

Abstract

The deformation-intensified atomic Mn-related separation of the bcc solid solution has been found in Fe_100–xMn_x alloys (x = 4.5–9.9) subjected to ball milling using Mössbauer spectroscopy. In the near surrounding of iron atoms, the atomic separation is similar to that observed upon the annealing of the alloys in a temperature range of 400–500°С. It has been found that the deformation-intensified atomic separation leads to the stabilization of the bcc phase with regard to the α → γ transformation, as well as to the expansion of the field of the existence of the bcc phase during heating.