Microstructure Evolution of A356 Aluminum Alloy Produced by Cooling Slope Method

Abstract:

In this work the cooling slope (CS) method was employed to produce the A356 feedstock in semisolid processing. The dendritic primary phase in the conventionally cast A356 alloy has transformed into a non-dendritic one in ingots cast over a cooling plate with (625°C, 650°C and 680°C) superheat. After pouring, the melt which became semisolid at the end of the plate was consequently poured into cylindrical steel mold with the various mold temperatures of (25°C, 200°C, 400°C). In this study, the cooling slope was adjusted at 50o with respect to the horizontal plane and 500mm length. It was found that the pouring and mold temperature affect the size and morphology of α-Al phase.

• Periodical: Advanced Materials Research (Volume 402)
• Pages: 272-276
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.402.272
• Online since: November 2011
• Authors: Salman Nourouzi, Sayed Mahdi Ghavamodini, Hamid Baseri, Amin Kolahdooz, Mohammad Botkan
• Keywords: A356 Aluminum Alloy, Cooling Slope, Semi-Solid Casting, Solidification

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