Jarfors, A.E.W.; Zhang, Q.; Jonsson, S. Feeding and Pore Formation in Semisolid Metal Casting. Metals2020, 10, 1560.
Jarfors, A.E.W.; Zhang, Q.; Jonsson, S. Feeding and Pore Formation in Semisolid Metal Casting. Metals 2020, 10, 1560.
Jarfors, A.E.W.; Zhang, Q.; Jonsson, S. Feeding and Pore Formation in Semisolid Metal Casting. Metals2020, 10, 1560.
Jarfors, A.E.W.; Zhang, Q.; Jonsson, S. Feeding and Pore Formation in Semisolid Metal Casting. Metals 2020, 10, 1560.
Abstract
Semisolid casting can provide excellent castings, but the nature of the pore-forming mechanisms has not been properly clarified. In the current communication, it was suggested that hydrogen precipitated during slurry making might have a decisive role in the formation of both gas and shrinkage porosity. Intensive stirring at the end of the slurry making process may act as a degassing step. Without the intense stirring, structures of primary slurry particles form around the hydrogen pores, strongly affecting pore formation and feeding during the intensification stage.
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