Abrasion scar measurement and wear rate calculation of soft materials

Micro-scale wear testing of soft materials, such as copper, aluminum, magnesium alloy, AISI10045 steel et al., was investigated with multifunctional micro-wear tester by self-development. And it was also compared with that of Ni60B coating and TiN coating with higher hardness. Roughly annular regions emerged in the abrasion scars were analyzed. Problems associated with the measurement of abrasion scar and subsequent calculations of the wear rate were mainly discussed.