Tribological Behaviours of CaSiO3 Reinforced PA6 Polymer–Metal Sliding Combinations under Dry Friction Conditions

Abstract

The friction and wear properties of polyamide 6 (PA6) and CaSiO3 (Calcium meta silicate) reinforced PA6 composites sliding against metal under dry sliding conditions are studied as per ASTM G99 standard by using a pin-on-disc wear testing apparatus. The result of the applied load and rubbing speed on the wear behaviour of the polymer–metal sliding combinations under dry / normal sliding conditions are investigated. The worn surfaces are examined by using Scanning Electron Microscope (SEM). Experimental results show that CaSiO3 samples under dry conditions show enhanced wear resistance. It is noticed that frictional heat has the capacity to change the physical state of the polyamide sliding surfaces and hence contributes for a major change on the wear behaviour of polymer-metal sliding under dry / normal sliding conditions.