Even though cracks were initially detected at the highest wear rate in the slip regime (SR), the micro-cracks did not propagate during the nucleation phase and were eliminated, resulting in a slight increase in the fretting fatigue lifetime, which was an unexpected trend according to previous research by Parast and Azadi [ 56 ] and Peng et al.
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The influence of 3D-printed PLA coatings on pure and fretting fatigue properties of AM60 magnesium alloys under cyclic bending loads.
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