The fatigue endurance limit of a high strength CrNi steel in a fretting dominated regime

In many assemblies of moving components, contact problems under various lubrication conditions are lifetime-limiting. There, relative motion of contacting bodies, combined with high loads transmitted via the contact surface lead to fretting fatigue failure. For a reliable prediction of in service performance load type, different damage and failure mechanisms that may be activated during operation have to be known.In this contribution selected results of a currently conducted research project are presented. The aim of this study was to examine the material behavior of a surface stressed steel. The influence of the fretting regime on fatigue properties has been investigated.

► We tested material behavior of a surface stressed steel.
► A test rig capable to conduct Fretting Wear as well as Fretting Fatigue is presented.
► The influences of palliative measures on Fretting Fatigue and Wear are examined by experiments.