Ion-beam mixing of the thermally immiscible systems Ag/Fe and In/Fe by 450 and 600 keV Xe ions was investigated by means of perturbed angular correlation and conversion electron Mossbauer spectroscopy. Different magnetic hyperfine fields associated with one or two Ag atoms close to the hyperfine probe were identified with both methods. The results are compared with those obtained for a supersaturated Fe(Ag) alloy.