Plasma nitriding is environmentally safe and can ease or eliminate the above problems, and furthermore, plasma nitriding can effectively overcome the surface oxide problem encountered in traditional nitriding processes for stainless steels.

Is nitriding toxic?

Surface activation is sometimes required to treat steels with a high chromium content - compare sputtering during plasma nitriding. Ammonia as nitriding medium - though not especially toxic it can be harmful when inhaled in large quantities.

What is nitrided cast iron?

Nitriding is one of the most popular methods for surface engineering. It is a low-temperature heat treating process that diffuses nitrogen into the surface of a metal to create a hardened surface. Nitriding is predominantly used on steel, but also cast irons, aluminum and titanium.