An experimental investigation of galling phenomenon generated in an alternated sliding ring-on-ring interface: Application to a full-scale solid lubricant interface

A fully instrumented ring-on-ring galling test has been developed based on the ASTM G196 principle. Torque records allow computation of coefficient friction and other tribological parameters to capture wear behavior interface. Contact electrical resistance is also recorded helping detect onset in contact. solid lubricant anti-galling solution OCTG connections involving a coated versus steel interface studied. Tests have stopped at different sliding distances perform surface analysis characterize mode severity. Wear scars expertized using optical, SEM, EDS, μ-hardness profile such that degradation scenario coating can be drawn up. Moreover, an terms describing evolution from pure lubricated galled