A nanostructured disordered iron-nickel-chromium alloy having the Fe60Ni30Cr10 composition is prepared through the mechanical alloying of elemental powders in a high-energy ball mill. The structural and morphological evolutions during mechanical alloying are investigated by X-ray diffraction, Fe-57 Mossbauer spectrometry and scanning electron microscopy. The patterns obtained are carefully analyzed using the Maud program while the Mossbauer spectra are described by means of two independent components. The transformation of the phase is noted to depend on the alloying time. The final product of the mechanical alloying process is a nanocrystalline double-phase BCC-Fe and FCC-Fe(Ni, Cr) solid solution with a mean crystallite size in the range of few nanometers. Dislocation densities of 1.40 x 10(15) m (2) and 1.46 x 10(15) m (2) are observed for BCC and FCC phases after 100 h of milling, respectively. (C) 2016 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.