Nitriding is a surface hardening process that introduces nitrogen into alloy steels to form hard alloy nitrides. The resulting compound layer and diffusion zone increase surface hardness, contact fatigue resistance, and wear behavior.
Because nitriding is performed below the transformation temperature, it generally causes much less distortion than carburizing or direct hardening.
This makes it attractive for finished parts that must hold tight dimensions after treatment.
At Braddock, nitriding would be selected where the component needs a hard, stable surface, limited movement, and no full-quench transformation during the final cycle.
Nitriding is used on parts requiring wear resistance and fatigue strength with good dimensional control.
Typical nitriding temperatures are about 925°F to 1050°F, depending on alloy and process method. Nitrogen diffuses into the surface and reacts with nitride-forming alloy elements such as chromium, molybdenum, vanadium, and aluminum.
The process creates a thin compound layer at the surface and a deeper diffusion zone below it.
Effective case depth, compound layer thickness, and hardness depend on alloy chemistry, nitriding potential, time, and prior core microstructure.
Braddock would control nitriding temperature, atmosphere chemistry, process time, and any post-process finishing requirements to meet case depth and surface performance targets.
