Abstract
Aluminum alloys are one of the most extended groups of functional materials by reason of combination between good mechanical properties and low mass. The aim of the present paper is to test the influence of the vibrations on the AlSi10Mg (EN 1706-2010) solidification. For comparison, six lots were casted in cold and preheating molds, with or without vibrations within 50 Hz and 1050 Hz. For each casting frequency was measured the silicon phase dimension, hardness, tensile stress and impact strength. The mechanical properties increase with the vibration frequency. Increasing the vibration frequency, the structure will be refined and also the size of the silicon phase is decreasing. Considering that one source of porosity is the gas entrapped or dissolved in the liquid metal during the casting, using vibration along casting and cooling allows it’s decreasing.
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