Vg. Gavriljuk et al., EFFECT OF CARBON AND NITROGEN ON CHEMICAL HOMOGENEITY OF FCC IRON-BASED ALLOYS, Metallurgical and materials transactions. A, Physical metallurgy andmaterials science, 28(11), 1997, pp. 2195-2199
Iron-based fee alloys containing (at. pct) 18 Cr, 15Ni, 10Mn and 18Cr,
15Ni were additionally alloyed with either carbon or nitrogen and stu
died by the small angle scattering of thermal polarized neutrons. Carb
on and nitrogen were found to influence neutron scattering in opposite
ways. An increase in carbon content enhances the inhomogeneity of the
solid solution on a scale that significantly exceeds the lattice para
meter. Nitrogen, on the contrary, slightly decreases the inhomogeneity
of FeCrNiMn and FeCrNi austenites. Tile data obtained are discussed i
n terms of short-range atomic order and enable one to clarify the phys
ical reason for differences in the thermodynamical stability of multic
omponent iron-based fee solid. solutions alloyed with either carbon or
nitrogen, which is important for the development of high-strength cor
rosion-resistant alloys.