Abstract
Nitrocarburizing is a thermochemical treatment in which nitrogen and carbon are diffused into the surface of ferrous materials at the ferritic phase field of materials, commonly in the temperatures of 520-580℃. Nitrcarburizing can be applied in solid, liquid, gas and plasma atmospheres. The plasma nitrocarburizing is more economical, friendly with environment and produces faster nitrogen and carbon diffusion, lower gas consuption compared to other nitrocarburizing techniques [1-6].