Properties of shaped castings made of modern cast VML18 and VML20 magnesium alloys manufactured by new methods

Resumo

The methods of casting of modern magnesium alloys (corrosion-resistant Mg–Al–Zn VML18 alloy and a high-strength Mg–Zn–Zr VML20 alloy) into the temporary molds made of cold-hardening mixtures and the molds produced by 3D printing are considered. The mechanical properties (ultimate tensile strength, yield strength, impact toughness), the corrosion properties, and the microstructure of the ingots are studied. The experimental results are used to choose the molds and the methods of casting of the parts of the control system of advanced aircrafts, which are made of modern cast magnesium alloys VML18 and VML20.