Nitriding is a surface treatment process. As a result of the diffusion of nitrogen to the steel surface, a hard layer is formed on the surface of the material with high wear resistance. Every steel material has a nitriding ability. While nitriding increases the corrosion resistance and fatigue strength of most steels, it decreases the corrosion resistance of stainless steels when special conditions are not applied.

During this process, when carbon is sent to the atmosphere along with nitrogen, it is called nitrocarburization.

Nitriding, one of the low temperature surface hardening processes; It is based on the principle of forming a hard layer on the surface by sending nitrogen atoms to the surface of the steel part as intermediate ground atoms. Salt bath and gas atmosphere can be used as nitrogen providing medium.

Nitriding process is carried out in the ferritic phase of carbon steels at temperatures as low as 480-590 ° C. In the nitriding process, atomic nitrogen on the steel surface spreads towards the inner parts and forms very fine nitride precipitates, usually 5-15 μm in size, forming a white layer with ceramic properties.

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