Source: Thermal Processing for Gear Solutions
In general, nitriding of parts involves a thermal process that provides a tough, corrosion-resistant, and wear-resistant surface with less distortion compared to other case hardening processes due to processing temperature and no need for quenching. There are different methods of nitriding, including gas nitriding, plasma/ion nitriding, and salt-bath nitriding. This article focuses on gas nitriding.
Read More: Quality Counts: Gas Nitriding by Jim Oakes