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In this study an attempt is made to investigate the effect of spray forming over chill casting. The microstructures of spray formed Al–12Si and Al–20Si alloys consisted of a fine dispersion of Si particulates of size ranging from 2–10μm in Al matrix, whereas microstructures of chill cast alloys are coarser. The hardness is higher and wear rate is lower for spray formed alloys than that of chill cast...
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