摘要：Summary This investigation examines two-body abrasive wear behaviour of ferrite–pearlite (FP), ferrite–bainite (FB) and ferrite–martensite (FM) microstructures of a microalloyed steel with nearly same amount of second phase/phase mixture to understand the role microstructure on high-stress abrasive wear performance of steel. Wear tests of differently heat treated specimens against SiC abrasive paper have been conducted over a wide range of sliding distance and normal load. This has been supplemented by the examinations of worn surfaces and generated wear debris in addition to the characterization of microstructures and evaluation of mechanical properties. It has been observed that for all type of microstructures, wear rate increases with increasing load but remains constant with sliding distance. Interestingly, the magnitude of wear rate at any particular wear condition is found to decrease considerably in the order of FP, FB and FM structure due to increased resistance to plastic deformation and microcutting encountered during the course of abrasion.
