STRUCTURAL AND MECHANICAL-PROPERTIES OF NITRIDED FESI SHEETS

FeSi sheets are widely employed in industry because of their good soft magnetic properties. Many studies have been concentrated on such syst ems but not often when subjected to a thermochemical treatment. Tn thi s study, we have determined the structural and mechanical behaviour of FeSi sheets when subjected to a nitriding thermochemical treatment pe rformed in a fluidized-bed laboratory furnace. The distribution of the nitrogen follows an exponential law at each side of the sample. The i ndexation of the X-ray diffraction peaks allows the identification of some nitrides. These nitrides seem to improve the surface microhardnes s of the ahoy.