OxidationOxidation is of great interest in the casthouse, as oxidationOxidation equates to metal loss. Therefore, a method to study the oxidationOxidation in a casthouseCasthouse was developed and tested on AlMg alloys and AlMg alloys with berylliumBeryllium additions under a variety of atmospheres created by an airfuel or oxyfuel burners. Samples of around 65 grams with between 0 and 5% Mg were placed in small steel or ceramic crucibles and further placed in a gas-fired box furnaceFurnace for times between 10 min and 6 h. The sample mass was recorded after cooling to quantify the oxidationOxidation extent with respect to both alloy and atmosphereAtmosphere . Microscopic analysis of selected samples showed that a MgAl2O4 layer had formed on the surface and that at higher Mg contents internal oxidationOxidation occurred resulting in the formation of MgO or MgAl2O4 clusters in the melt. The results show promise for a method to give an increased understanding of the oxidationOxidation in the casthouseCasthouse .
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- Small Scale Oxidation Experiments on AlMg Alloys in Various Gas Fired Furnace Atmospheres
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