Wear behaviour of Al-Mo-Ni composite coating at elevated temperature

In conclusion, the material loss of the Al-Mo-Ni composite coating is increased with elevated temperatures under dry and lubricated sliding conditions. The material loss is sharply increased up to temperature point of 100 °C under dry sliding condition while it is nearly constant after this point with test loading of 100 N. Under lubricated conditions, the same tendency can be obtained for loading of 83 N. The wear mechanism is mixed mode such as abrasion, scuffing, delamination for dry conditions. Under lubricated conditions, for the lower temperature, the absorbed oil inclusions in the porosities postpone the wear in progress, resulting in easy friction. The wear mechanism of Al-Mo-Ni coating is predominantly abrasive, and delamination also occurs under heavy loading. The wear of the coating under lubricated conditions is nearly 10 times lower than that of dry conditions.