Failure mode mapping for rolling/sliding contacts under low lambda conditions

A review of advances in tribology in 2020–2021

“…Failure modes found even in laboratory tribology experiments are generally compound, and identifying the key factors needs repeated tests and thorough analysis. Wagner and Sundararajan [441] conducted 34 three-points rolling contact tests on a micro pitting rig (MPR) with variable rolling/sliding contact conditions and low lambda ratios, and they found there were three distinct failure modes: Micropitting, abrasive wear, and pitting. These results were used to evaluate three different mapping techniques: (1) Pmax vs. lambda ratio, (2) PV vs. lambda ratio, and (3) a modified Scm (line contact) vs. lambda ratio.…”