Nitriding

NITRIDING

Nitriding is a low-temperature surface hardening process applied especially to increase the surface hardness, wear resistance and fatigue strength of complex machine parts and moulds where distortion or dimensional deformation is not desired.

During the process, nitrogen atoms are diffused into the steel surface. In nitriding, when the nitrogen on the surface exceeds a certain concentration, it forms the epsilon Fe-N phase called the white layer. This hard layer shows high resistance to wear, corrosion and thermal shocks.

It is especially recommended to be applied to precision mould components, shafts and gears whose machining and final grinding operations have been completed.