Abstract
In this study, we investigated the tribological behavior of HM1 steel fabricated by precision spay forming (PSF). WE used block ring friction test for our investigation, at various temperature, which was compared with that of the as-cast specimen. The results indicate that the wear rate and the friction coefficient of the PSFed specimen are reduced compared to that of the as-cast specimen. Attribution to these results is the fine grain, the eliminated segregation of elements, and the uniformly distributed matrix material elements for the PSFed specimen. SEM morphology of wear scar shows that the mainly wear mechanism of the as-cast specimen is adhesive wear, while the wear mechanism of the PSFed specimen is mainly abrasive wear.
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