Article ID Journal Published Year Pages File Type
5017886 Journal of Materials Processing Technology 2017 24 Pages PDF
Abstract
AlSi7Mg investment cast test bars were produced using low-pressure die casting and ultrasonically refined during cooling. The microstructure and mechanical properties of the samples at different distances from the acoustic radiator were characterized for 650 °C pouring temperature. The combined technique lead to cast samples free from gas porosities and solidification defects, promoted the formation of small α-Al globular grains, modified the eutectic silicon, dispersed and decreased the size of intermetallic phases. The alloy mechanical properties were improved, increasing the ultimate tensile strength, yield strength and strain.
Related Topics
Physical Sciences and Engineering Engineering Industrial and Manufacturing Engineering
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