Erosion and surface structure development of metal–diamond particulate composites

摘要: Abstract Metal-matrix/diamond-abrasive composites are commonly employed in precision grinding of glasses and ceramics. Erosion, to replace worn diamond cutting points, is essential proper tool functioning. However, the erosion behavior these materials has not been well characterized or understood. In this study, results experiments on bronze-matrix, diamond-abrasive composite described. The effects systematic changes metal-matrix (“bond hardness” measured mechanical properties) particles (size concentration) both rate surface structure at different angles attack were studied using a design approach. exhibited ductile behavior, by an increase as angle was decreased. Changes produced statistically significant but relatively small effects. size concentration strongly affected morphology eroded surface. Diamond smaller than erodent had little protective effect. contrast, larger protected bond material immediately behind them, producing comet tail reducing erosion. resultant morphologies closely resemble those during