Piotr Fornal1, Jan Stanek2, Janusz Jaglarz1, Marek Dąbrowski3
1Institute of Physics, Cracow University of Technology, 1 Podchorążych Str., 30-084 Kraków, Poland,
2Marian Smoluchowski Institute of Physics, Jagiellonian University, 4 Reymonta Str., 30-059 Kraków, Poland,
3Production Engineering Institute, Cracow University of Technology, 37 Jana Pawła II Ave., 31-864 Kraków, Poland
The properties of fast cutting steel SW7M, stainless steel 1H18N9T, and tool steel NC11 coated with a TiN protective layer were studied using 57Fe Conversion Electron Mössbauer Spectroscopy. The adhesion of the coatings is determined by the thickness of Fe-N and Fe-Ti interface. The model of the abrasion of the protected tools, based on fast diffusion of Fe ions to the surface though the TiN layer and further oxidation is proposed.