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Evaluation of fretting wear behavior of PEEK by analyzing the change of crystallinity: The high temperature effect
Author(s) -
Wang Qiufeng,
Wang Yunxia,
Wang Hongling,
Fan Na,
Wang Mengjiao,
Yan Fengyuan
Publication year - 2017
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.24517
Subject(s) - peek , crystallinity , materials science , tribology , reciprocating motion , tribometer , composite material , polyether ether ketone , fretting , amorphous solid , fretting wear , friction coefficient , polymer , mechanical engineering , chemistry , organic chemistry , engineering , gas compressor
In this study, the high‐temperature tribological behaviors of poly‐ether‐ether‐ketone (PEEK) under fretting wear condition have been evaluated by using a SRV‐IV oscillating reciprocating ball‐on‐disk tribometer. It can be found that the noticeable transitions of the friction coefficient and wear rate occurred when the test temperature was 150°C. Based on the observations of the morphologies of worn surfaces, the transition of wear mechanisms of PEEK actually occurred at 150°C. In addition, by investigating the change of the crystalline structure of PEEK, results showed that the wear contributed to the formation of a higher crystallinity of PEEK. The change of the crystallinity further affected the tribological behavior of PEEK. According to the result of permanganate etching, it also can be observed that the main component of plastic deformation resulting from adhesive wear was the amorphous phase. POLYM. ENG. SCI., 57:1340–1348, 2017. © 2017 Society of Plastics Engineers