Abstract
Abstract This research investigates effects of contact pressure on multiaxial fretting fatigue behavior of Al-Zn-Mg alloy which has a wide variety of applications in automobile and rail transit engineering. Al-Zn-Mg alloy is exposed to cyclic loadings and contact pressure. The cyclic stress-strain curve and displacement amplitude curve under different contact pressure of Al-Zn-Mg alloy were investigated using point contact multiaxial fretting fatigue test equipment. Based on cyclic stress-strain curve and displacement amplitude curve under different contact pressure, fretting wear characteristics, fretting fatigue fracture properties and fretting fatigue lives as well as the effects of contact pressure on multiaxial fretting fatigue damage and fretting fatigue fracture mechanisms of Al-Zn-Mg alloy were extensively analyzed.
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