NUKLEONIKA 2003, 48(Supplement 1):s21-s24

 


PROPERTIES OF TiN PROTECTIVE COATINGS ON STEEL



Piotr Fornal1, Jan Stanek2, Janusz Jaglarz1, Marek Dąbrowski3

1 Institute of Physics, Cracow University of Technology,
1 Podchorążych Str., 30-084 Kraków, Poland
2 Marian Smoluchowski Institute of Physics, Jagiellonian University,
4 Reymonta Str., 30-059 Kraków, Poland
3 Production 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.

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