Many engineering components, such as crankshafts, are subjected to very complex stresses causing fatigue failure in bending or torsion and wear failure by abrasion at the same time.
Nitriding is the most common process used to prevent the unwanted results of those stresses.
The effects of UltraGlow® Ion Nitriding on bending fatigue properties of the 3% Cr-Mo steel (British EN 40B) is very significant. The improvements of the crankshaft performance depends on the case depth of the nitrided layer, its hardness, and also on its structure.