Ultrasonic Cavitation Treatment of Metallic AlloysIakovos Tzanakis, Dmitry Eskin This Special Issue scrutinizes the use of ultrasonic-cavitation melt treatment in technology of high-quality metallic alloys with improved mechanical properties, and assesses the driving mechanisms of cavitation-induced effects, such as grain refinement, degassing, wetting, and particle distribution. In this context, the research published in this Special Issue considers the interaction between the cavitation field and acoustic streaming with the melt flow and the suspended solid/liquid phases, the characterization and mapping of cavitation activity in a melt volume, and the possibility of achieving high efficiency in processing large melt volumes through technological approaches for the commercial implementation of ultrasonic processing technology. |
Common terms and phrases
acoustic streaming activity addition aluminum alloy amplitude analysis applied as-cast authors billet casting cavitation bubbles clouds coil composition computational containing cooling CrossRef crucible dendritic density developed direction distance distribution dynamics effect Equation equiaxed Eskin experimental experiments field Figure flow fluid force formation fraction fragmentation frequency grain refinement grain size grain structure growth heat images improved increase indicate induced ingot L-shaped Lebon Light liquid metal liquidus temperature master alloy Mater measured mechanisms melt method microstructure molten mushy zone nucleation numerical observed obtained particles Pericleous peritectic phases positions predicted present primary processing produced properties pure reduced region resonance respectively role sample shown in Figure shows simulation solid solidification solute Sonochem sonotrode sound StJohn sump surface temperature Tzanakis ultrasonic treatment ultrasound University velocity vibration volume Wang waves X-ray