Tribological behavior of polymethyl methacrylate against different counter-bodies induced by torsional fretting wear

▶ Accomplish the research under a high-precision low-speed torsional fretting device. ▶ Indicate the damage characteristics of PMMA under torsional fretting under a large angular displacement scale. ▶ Disclose the difference of wear mechanisms, tribology behavior of PMMA against different counter-pairs.