Structural, mechanical and magnetic behaviours of FeSi and FeSiAl sheets wh
en subjected to a nitriding thermochemical treatment are reported. The nitr
ogen distribution at the surface of the sample is fitted with an exponentia
l law. Iron-nitrides have been identified by X-ray diffraction. High microh
ardness values have been measured on nitrided samples. (C) 1999 Elsevier Sc
ience B.V. All rights reserved.