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Information × Registration Number 0221U106421, 0121U114189 , R & D reports Title Controlling the Atomic Distribution for the Functionalization of the Hybrid Fe16N2-Martensite Phase Based Materials as an Alternative to Permanent Magnets Made of Rare Earth Intermetallics or Permendur popup.stage_title Head Radchenko Taras M., Доктор фізико-математичних наук Registration Date 06-12-2021 Organization Institute of Metal Physics. G.V. Kurdyumov of the National Academy of Sciences of Ukraine popup.description2 For the solid solution, maximally ordered as an α″-Fe16N2 Jack’s type phase in the Fe–N martensite but with N atoms in the interstices and on the sites of the b.c.c. iron, using the adequate set of the temperature- and concentration-dependent microscopic energy parameters of interatomic interactions in such an interstitial–substitutional solution isomorphous to the b.c.t. Fe–Ni, we determined how the equilibrium concentration of residual vacancies (in a wide range of the change of total content of interstitial atoms) relates with a concentration of thermally activated vacancies at the sites of impurity-free b.c.c. metal at the same temperature, and calculated the curve of the dependence of equilibrium concentration of residual site vacancies on the total content of interstitial N atoms (in a wide range of its change). From the profile of the obtained curve, we estimated the values of the relative concentrations of interstitial N atoms, when (at a given temperature) a spontaneous transition of part of N atoms from the octahedral interstices to the b.c.t.-Fe sites actually occurs. The concentration value of possible transfer of nitrogen atoms to the b.c.t.-Fe-lattice sites at a fixed temperature is determined. Product Description popup.authors Gatsenko Oleksandr S Lizunov Vyacheslav V. Tatarenko Valentyn А. popup.nrat_date 2021-12-06 Close