Strain-Based Assessment to Evaluate Damage Caused by Deep Rolling.

The positive effects of deep rolling on fatigue strength-reduced surface roughness, work hardening and compressive residual stress-in the near-surface region are achieved by controlled high plasticisation of the treated material. However, excessive and/or repeated plasticising poses a risk of damage to the machined component. This paper investigates the damage caused by deep rolling of a railway axle.