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Unformatted text preview: structures created. This generally has the effect of hardening the material while simultaneously making it more brittle. In many instances this may be a desirable trait but the intended use of the material should be known before such a technique should be employed as a loss of ductility will be incurred. This fast solidification will also affect the ratio of dendritic to lamellar structure. Prepare an excel graph showing fractional amount of micro constituents primary alpha and eutectic solid (alpha + beta), as a function of alloy composition (in wt% Si) for hypoeutectic and eutectic sand cast Al-Si alloy....
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- Spring '10