Abstract
The results of the Mossbauer and resistometric studies of the atom redistribution and peculiarities of the α(bcc) → γ(fcc) structure-phase transformation in the Fe + 8.25 at % Mn alloy under irradiation by Ar+ ions (E = 20 keV, j = 50–100 μA/cm2) and heating by a light beam with a comparable power are presented. The Cowley parameter α1 of short-range atomic order, the number and composition of the α and γ phases formed during α → γ transition are calculated. An alternative character of atom redistribution in the quenched alloy caused by irradiation with ions at 250°C (atomic ordering, α1 0) is established. Exposure to the light beam does not cause a redistribution of atoms at 250°C (α1 = 0). At a temperature of 420°C, exposure to an ion beam repeatedly (1–2 orders of magnitude) accelerates the short-range atomic separation in the alloy and initiates the subsequent transformation of the enriched (up to ~18 at % Mn) zones into the γ phase.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
