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- W3144879477 abstract "A solid-liquid duplex casting process was applied to achieve simultaneous refinement and modification of sili- con phases in hypereutectic Al-Si alloys. In this process P-treated Al-24Si (wt%) solid alloy is mixed with Sr-treated eutectic Al-12.6Si molten alloy to provide an Al-18Si alloy in the Liquid ? Primary Si phase field and then cast. By using this process the mean particle size of primary silicon was reduced from 50 lm to less than 15 lm (refinement) and the eutectic structure changed from a plate-like to a fibrous structure (modification) when compared with conventional casting process. The results of mechanical testing showed that the tensile strength increased by about 14 % from 153.5 to 175.1 MPa and the elongation more than doubled from 1.64 to 3.76 %. The improvement of mechanical properties is attributed to the combination of refined primary silicon and the fibrous structure of the modified eutectic Al-Si matrix." @default.
- W3144879477 created "2021-04-13" @default.
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- W3144879477 date "2012-01-01" @default.
- W3144879477 modified "2023-10-12" @default.
- W3144879477 title "Simultaneous Primary Si Refinement and Eutectic Modification in Hypereutectic Al-Si Alloys" @default.
- W3144879477 hasPublicationYear "2012" @default.
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