By the methods of mathematical three-dimensional modeling, features distribution electric and thermal fields in volume molten alloy foundry hypoeutectic silumin A356, when it is treated with an current by parallel electrodes, are established. It was found that geometry electrode system qualitatively quantitatively determines effect electrothermal on melt treatment direct current. demonstrated d...

The high strength of Al-Si hypoeutectic alloys additively manufactured by powder-bed fusion is great scientific interest. To date, the mechanism grain refinement near line, which contradicts conventional Hunt’s columnar–equiaxed transition criteria, remains to be elucidated. Here we present first report on refinement. When a laser was irradiated cast alloy consisting coarse ?-Al and ?-Al/Si eut...

We have successfully synthesized bulk nanostructured Fe94.3B5.7 alloy using the one-step approach of a self-propagating high temperature synthesis (SHS) combining a rapid cooling technique. This method is convenient, low in cost, and capable of being scaled up for processing the bulk nanostructured materials. The solidification microstructure is composed of a relatively coarse, uniformly distri...

Three new ultrafine hypoeutectic die-cast alloys based on quaternary Al-Cu-Si-Mg system were developed. The CALPHAD thermodynamic modelling of Scheil description was conducted to predict the volume fractions eutectic mixtures. designed fraction mixtures Al-xCu-2.2Si-1.1Mg (x = 5, 6.6 and 10.6 wt%) determined be 0.2, 0.25 0.3, respectively. With increase in fraction, yield strength ultimate tens...