Einfluss von Beschichtungen zur triboaktiven Transferschichtbildung auf die Reibung in Kettengelenken

Abstract

In this work, the friction behavior of chain joints with triboactively coated pins was analyzed. For this purpose, the nitride hard coating (Cr,Al)N+Mo, produced by means of a PVD process, was investigated. A sulfur-added model grease was used for lubrication. This is to produce tribochemical transfer coatings that are transferred from the chain pin to the sleeve under tribological loading. As a reference, measurements were also carried out on a (Cr,Al)N coating system and on uncoated samples. Various normal forces, sliding speeds and temperatures were also considered as further influencing variables. The frictional torques were determined using the chain joint tribometer deve loped at the Chair of Machine Elements, Gears and Tribology (MEGT).