Frictional and wear behaviors of short carbon fiber reinforced polyetherimide composites in an oil lubricant environment

• Published in: Wear 2024-04, Vol.542-543, p.205275, Article 205275
• Main Authors: Zhang, Yuan-Yuan, Guan, Bo-Wen, Liang, Shi-Wei, Liu, Quan-Xiu, Li, Yuan-Qing, Fu, Shao-Yun
• Format: Article
• Language: English
• Subjects: Oil lubricated environment; SCF/PEI composite; Tribological performance; Wear mechanism
• ISSN: 0043-1648; 1873-2577
• DOI: 10.1016/j.wear.2024.205275

Tribological performances of short carbon fiber reinforced polyetherimide (SCF/PEI) composites in an oil lubricant environment are of significance for relevant applications but have not been reported yet. In the present work, the friction and wear behavior of the SCF/PEI composite in oil-lubricated conditions is investigated systematically with a pin-on-disc test rig (a polymer pin sliding against a steel disc). Experimental results indicate that the incorporation of oil lubricant improves the anti-wear and anti-friction performances of the SCF/PEI composite, especially under heavy-duty conditions. In the range of working conditions explored here, the friction coefficient of the SCF/PEI composites varies around 0.1, the specific wear rate is lower than 3 × 10−6 mm3/N·m, and the composite still operates under a boundary lubrication regime. Meanwhile, it should be pointed out that the dominant wear mode of the SCF/PEI composite in the oil lubrication condition is abrasive wear, and no transfer film is observed on the counterpart surface. •Tribological performances of the SCF/PEI composites in an oil lubricant environment are experimentally investigated.•Test load has a greater effect on the wear rate of the SCF/PEI composite in the oil lubricated environment.•The dominant wear mode of the SCF/PEI composite in the oil lubrication environment is abrasive wear.•Friction coefficient of the SCF/PEI composite is proportional to a “PV” parameter of P0.26V-0.09 with oil lubricants.