Ultrasonic Treatment of Light Alloy MeltsThis is the first monograph to comprehensively cover the effect of using power ultrasound to refine and solidify aluminium and magnesium alloys. The author is widely regarded as a pioneer in the field, and the text is based on results obtained over the 40 years he has spent developing these techniques. Ultrasonic treatment efficiently removes hydrogen and fine solid inclusions from melts, and also helps create a refined grain structure during solidification in the ultrasonic field. Both the fundamental and applied aspects of the formation of an extremely fine nondentritic grain structure are discussed, as well as the application of ultrasound to the process of zone melting. |
Contents
3 | 19 |
Alloys | 41 |
4 | 55 |
2 | 65 |
2 | 99 |
SOLIDIFICATION OF LIGHT ALLOYS IN | 134 |
CONTINUOUS CASTING OF LIGHT ALLOYS | 185 |
CONTINUOUS CASTING OF NATURAL | 227 |
ULTRASONIC MOLD CASTING | 245 |
Products from Nondendritic Pellets | 261 |
INDUSTRIAL APPLICATIONS | 287 |
CONCLUSION | 319 |
| 323 | |
| 333 | |
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Common terms and phrases
Abramov acoustic cavitation acoustic power acoustic streams active aluminum alloys aluminum melt aluminum oxide amplitude capillary cavitation bubbles cavitation threshold collapse concentration continuous casting cooling rate crystallization front decreases deformation dendritic cell dendritic structure density developed cavitation diameter ingots diffusion Dobatkin dynamic effect of ultrasound efficiency Eskin eutectic Figure filter filtration formation frequency glass cloth grain refinement heat hydrogen hydrogen content impurities increases ingots of alloy intermetallic compounds layer light alloys liquid metal liquid pool magnesium magnesium alloys magnetostrictive mechanical properties molten metal nondendritic grains nondendritic structure nucleation obtained overcooling overheating particles plasticity produced radiating face radius solid non-metallic inclusions solid phase solidification front solidifying melt sonication sonoluminescence sound pressure studies surface tension Table temperature titanium transducer ultrasonic cavitation ultrasonic degassing ultrasonic field ultrasonic intensity ultrasonic treatment velocity vibration viscosity wave resistance waveguide zirconium zone refining