A phase field model with order parameter, concentration, and temperature as field variables is used to study the properties of solidification fronts in a binary alloy. As in previous papers, the model includes dependence of the free energy density not only on these field variables, but also on the gradients of the order parameter and concentration. Terms with these gradients represent surface f...

The structure and strength of Al x Si-2wt.%Cu (x = 15, 17 20 wt.%) alloys obtained by directional solidification at a rate 0.1 0.8 mm/s are investigated. It is shown that the tensile increases with an increase in due to decrease size eutectic silicon transformation its crystal flake into fine-fiber one. In addition, there was share intermetallic phase, exceeding reduced amount α-Al phase. An co...

Solidification of materials to near net shape is one of the most commonly used and economical methods of manufacturing. Different industries impose different restrictions and design objectives on the solidification process. For example, single crystal growth requires a planar growth front whereas casting requires homogenous material distribution. There are various techniques to control the flow...