Plasma nitriding is one of the thermochemical heat treatment processes and is carried out at temperatures between 350 and 600° C.
Positively charged ions strike the workpieces connected as a cathode in front of the furnace wall (anode) with a high impact speed.
Initially, this ion bombardment results in a very intense cleaning of the workpiece surface (sputtering), followed by the heating and nitriding of the surface.
Advantages compare to gas nitriding:
- Smaller distortion
- Adaptation of layers to wear type
- Partial nitriding much easier to achieve
- Environmentally,less gas consumption
- No additional depassivation for stainless steel nitriding
- Titanium nitriding