Carbonitriding resembles gas carburization with the addition of ammonia to the carburizing atmosphere, which provides a source involving nitrogen. Carbonitriding is usually a metallurgical surface modification technique that’s used to improve the surface hardness of any metal, thereby decreasing wear. During the method, atoms of carbon and nitrogen diffuse interstitially to the metal, creating barriers to slip, increasing the hardness and modulus near the surface.
Carbonitriding
