MOSSBAUER AND X-RAY-DIFFRACTION STUDY OF ELECTROCHEMICALLY DEPOSITED FE-NI-CR AND FE-NI-CR-P ALLOYS

Mossbauer spectroscopy and X-ray diffractometry were used to study electroplated Fe-Ni-Cr and Fe-Ni-Cr-P alloys prepared under different circumstances resulting in a very wide composition. range. The X-ray diffractograms of deposits reveal amorphous-like or microcrystalline character of these materials. There are significant differences among the Mossbauer spectra of electrodeposited samples of different composition. We have found that most of the low temperature Mossbauer spectra of electroplated alloys significantly differ from those recorded at room temperature. A new magnetically split component appears beside the paramagnetic part in the spectra of Fe-Ni-Cr-P alloys at 5 K. The magnetic transition takes place in a wide temperature interval.