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采用反向压铸技术制造 Si Cw(ψ=1 8% ) /60 61 Al复合材料。在复合材料不同部位取样 ,测量 Si Cw 晶须体积分数 ,借助扫描电镜观察 Si Cw 分布情况 ,测量 Si Cw 形貌参数。结果表明 ,反向压铸复合材料具有良好的均匀性。
Si Cw (ψ = 18%) / 60 61 Al composites were fabricated by reverse die casting. Samples were taken from different parts of the composite to measure the volume fraction of Si Cw whiskers. The distribution of Si Cw was observed by scanning electron microscopy and the topography parameters of Si Cw were measured. The results show that the reverse die-cast composite has good uniformity.