Abstract
Mn+1AXn (MAX) phase materials present an attractive potential for friction reduction and wear resistance applications due to the ternary layered structure. This work was done to investigate how the combination of Ti2AlC and Ti3AlC2 MAX phase particles with zinc dialkyl dithiophosp (ZDDP) additives in the lubricant affected the tribo-surface by means of a reciprocating test rig with cyclic impact loading. The results indicated that the friction and wear properties of Ti3AlC2-containing lubricant were better than those of Ti2AlC-containing lubricant. The distinctive microstructure of worn surface caused by the Ti3AlC2 particles was characterized by the uniform distribution of many fine scratches, while the other was distributed with more peeling pits by the Ti2AlC particles. The tribo-chemical reaction of ZDDP involving Ti3AlC2 particles promoted a larger regional distribution of the tribofilm and the generation of short-chain phosphates. The synergistic effect of Ti3AlC2 particles and ZDDP additives led to excellent tribological properties.
Highlights
Mn+1 AXn (MAX) phase materials are a group of ternary compounds, where M represents an early transition metal, A mostly represents a IIIA and IVA
Ti2 AlC and Ti3 AlC2 particles added into zinc dialkyl dithiophosp (ZDDP) oil, it still needed to explore these layered structured particles’ effect on the impact of friction and wear performance and clarify the tribo-mechanism of such particles under the action of ZDDP
The magnitude of the friction force did not vary in the ranking order among base oil containing particles
Summary
Mn+1 AXn (MAX) phase materials are a group of ternary compounds, where M represents an early transition metal (such as Ti or Nb), A mostly represents a IIIA and IVA group element (such as Al or Si), and X is either carbon or nitrogen [1,2]. Ti2 AlC and Ti3 AlC2 are typical representatives of MAX phase materials Their ternary nanolayer compounds with the layered structures may contribute to the development of self-lubricating properties and offer great potential in tribology applications, especially as lubricant additives added into the lubricating oil. Ti2 AlC and Ti3 AlC2 particles added into ZDDP oil, it still needed to explore these layered structured particles’ effect on the impact of friction and wear performance and clarify the tribo-mechanism of such particles under the action of ZDDP. The worn surface morphology and tribo-chemical reaction films were analyzed to explore the interaction mechanism between ZDDP and titanium aluminum carbide particles. This exploration may provide some insight into the design of lubricant additives using Ti2 AlC and Ti3 AlC2 particles
Sign-in/Register to view highlights & summary 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
