We have prepared mechanically alloyed samples of FeNi, FeNi3, and (FeN
i3)(1-x)Ag-x. The production of nanometer size grains was confirmed by
x-ray broadening and electron microscopy. X-ray measurements indicate
d that a small amount (similar to 7%) of Ag could be alloyed into the
Fe-Ni and that considerable lattice strain was present. Mossbauer and
magnetic measurements found no evidence for superparamagnetism in thes
e alloys.