| In order to investigate the effects of graphite content and graphite particle size on structure and mechanical properties of graphite dispersed tin bronze castings, macro and micro structure have been observed, and mechanical test and wear test were also carried out. The Specimens were prepared by dispersing graphite into the molten metal through the Vortex process. From this experiment, the results were summarized as follows, 1) Graphite in tin bronze castings could be distributed uniformly by Vortex process, and the inter particle distance of graphite were quite similar. 2) Mechanical strength of the alloy decreased as the graphite content and particle size increased. 3) Wear resistance increased as the graphite content and graphite particle size increased. 4) The affect of graphite addition became remarkable as the load and sliding length increased. |
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