At very light normal load and slow sliding speed, the wear mechanism of 2024 aluminum alloy was abrasive wear and delamination wear. At very high normal load and sliding speed, severe melt wear and gross material transfer took place.

• 2024铝合金在轻微磨损条件下主要是磨粒磨损和剥层磨损,而在高速高载条件下主要是严重熔融磨损,并伴随材料的大量转移。