Samples of three different stainless steel types have been nitrocarburized under
typical industrial conditions: an autenitic Cr-Ni-Mo steel, a 28% Cr-Ni-Mo super-ferritic
steel and a duplex ferritic-austenitic steel. The obtained nitrocarburized layers were
studied by optical, electron scanning microscopy, energy-dispersion analysis (EDS),
glow discharge optical spectroscopy (GDOS), X-ray diffraction and hardness measurements.
The properties of these layers are compared and the results are discussed.