1 College of Material and Mineral Resources, Xi'an University of Architecture and Technology, Xi'an 710055, China 2 School of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
The friction and wear characteristics of Fe-0.03Te-0.3Pb-0.9Mn free-cutting stainless steel were investigated using a lubricated rolling wear testing apparatus. The wear morphology, hardness, friction coefficient and wear volume of alloy surface were compared in different wear time, its mechanism of lubricated rolling wear was studied further. The results show that, at the beginning of wear, the performance of alloy surface wear is relatively stable, under the interaction of free-cutting phase, such as MnS and Pb, that cracks occur at the alloy surface plough bottom; When the wear is stable, the performance of alloy surface changed gradually, the cracks of plough bottom continue growing, interweaved cracks begin to generate flake or block convex parts; When the wear is over, the alloy surface lubrication film and exfoliation numerous are flaking off, exfoliation formed abrasive wear, plough disappeared step by step, the alloy surface system is collapsed rapidly.
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