Mold corrosion behavior of magnesium alloy castings

magnesium alloy castings

To mold surface composition and corrosion resistance of magnesium alloy castings capacity are studied, found dissolved mold casting of magnesium alloy castings than other methods to obtain better corrosion resistance of the casting. Corrosion in the 50 g few NaCl salt bath, polystyrene (EPS) pattern of corrosion resistance of magnesium alloy specimen corrosion resistance than the common casting of magnesium alloy specimen by about 3 times. The main reason was that EPS shape of magnesium alloy lost foam casting of casting surface with a layer of MgO style - Al2O3 - thin film composed of SiO2, the amorphous particles, such as C, the film is to protect the role of magnesium alloy. Therefore, epc is very suitable for forming of magnesium alloy.