Abstract
In this work, GH4169 dovetail specimens were coated on both sides with a bonded solid lubricant coating. Fretting fatigue tests were carried out at 500 °C and compared with untreated dovetail specimens. The results showed that the fretting fatigue life of the coated specimens was increased by about 41.4% compared to the untreated specimens. This is attributed to the inherent shear properties of the two-dimensional material and its uniform adsorption at the friction interface, which provides excellent lubrication, significantly reduces the interfacial shear, effectively inhibits early crack initiation, and to a certain extent promotes crack closure to slow down the crack propagation rate. This study further demonstrates that interfacial lubrication has a positive effect on the enhancement of fretting fatigue life.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
