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- Title
Transfer film growth of continuous carbon fiber reinforced thermoplastic poly(ether ether ketone) facilitated by surface texture during dry sliding.
- Authors
Cao, Huajun; Dong, Xin; Qu, Da; Dong, Chaoyang; Zhao, Chunyue; Sun, Deen; Gu, Le; Wu, Bo
- Abstract
To show the effect of surface texture on transfer film growth of continuous carbon fiber-reinforced thermoplastic poly(ether ether ketone) (CCF-PEEK), tribological behaviors of untextured and laser-engraved-dimple-textured WC–Co, TiN and DLC surfaces dry-sliding against CCF-PEEK pin were studied in ambient atmosphere (pv = 0.46 MPa•m/s). Little tribo-film formed on untextured WC–Co, TiN and DLC, but continuous, relatively uniform CCF-PEEK transfer films with micron-level thickness grew from the majority of dimples along the sliding direction on textured WC–Co, TiN and DLC. A stable reduction in coefficient of friction by nearly 38.3% was achieved by textured WC–Co compared to the untextured. Texturing also yielded significant friction reduction to TiN, but almost did not lower the friction of DLC. Micro-cutting effect from the dimple texture edges probably caused considerable material removal of the counterpart CCF-PEEK pin and the repetitive friction cycles shaped the CCF-PEEK wear debris into the tribo-films. The friction reduction could be primarily attributed to the substantial mediation of tribological CCF-PEEK transfer films on the sliding interface. This study indicates that surface texture can facilitate the growth of polymeric transfer films with tribological application potentials in dry-sliding conditions.
- Subjects
SURFACE texture; CARBON fibers; KETONES; CARBON fiber-reinforced plastics; ETHERS; FILMSTRIPS; THERMOPLASTICS
- Publication
Journal of Materials Science, 2022, Vol 57, Issue 1, p383
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-021-06595-6