Two and three-body abrasion resistance of rubbers at elevated temperatures

The gained information and wear rates from these tests, including Shore A hardness and nano-indentation, gave insight in the wear loss, materials parameters and the respective wear mechanisms. The ASTM G65 showed a 3-body-abrasion mechanism, which causes wear by adhesion of rubber to the employed abrasive. The ISO 4649 showed a 2-body-abrasion mechanism, which causes wear by “tongue-rupture”. The mechanism are still present at higher temperatures although the characteristic wear patterns become less pronounced with increasing temperature. Regarding the application, the ASTM G65 test better simulates the wear caused by loose good rolling freely on the belt, while the ISO 4649 is more suitable for describing the scraper belt contact.