nitrokarbourisering
Nitrokarbourisering is a diffusion-based surface hardening treatment for steel in which nitrogen and carbon are introduced into the surface. The process forms a hard compound layer on the exterior and a diffusion zone beneath, resulting in increased surface hardness, wear resistance, and often improved fatigue strength, while preserving core toughness.
The main implementations are gas nitrocarbourizing (GNC) and salt bath nitrocarbourizing. Gas nitrocarbourizing exposes the workpiece
Microstructure-wise, a top compound layer, often based on epsilon-Fe2-3N (and sometimes gamma' Fe4N), forms at the
Applications are widespread in components subject to wear and fatigue, such as gears, camshafts, crankshafts, valves,