Includes bibliographical references and index.
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chapter 1. Historical overview of ultrasonic applications to metallurgy -- chapter 2. Fundamentals of ultrasonic melt processing -- chapter 3. Ultrasonic degassing -- chapter 4. Ultrasonic filtration -- chapter 5. Ultrasonic grain refinement -- chapter 6. Refinement of primary particles -- chapter 7. Ultrasonic processing during direct-chill casting of light alloys -- chapter 8. Ultrasonic melt processing during shape casting of light alloys -- chapter 9. Ultrasonic processing of composite and immiscible alloys -- chapter 10. Rapid ultrasonic solidification of aluminum alloys -- chapter 11. Zone refining of aluminum with ultrasonic melt processing -- chapter 12. Semisolid deformation of billets with nondendritic structures -- chapter 13. Ultrasonic melt processing : practical issues. "Expanding applications of light alloys demand better quality along with environmentally friendly processing technologies. The quality of cast metal is the foundation of its performance in downstream processing and in final parts. That is why the research centers and universities are focusing on improving traditional and developing new means of melt processing and casting. Specific attention in given to the physical means of treatment that do not involve expensive additions or environmentally and health hazardous substances. New types of materials, e.g. nanocomposites, require unconventional technological approaches that also involve physical means such as electrical and magnetic fields, intensive shearing, microwaves, etc. Ultrasonic melt processing accompanied by developed cavitation and acoustic streaming is among those physical processes that can potentially influence different stages of solidification with the resultant cleaner metal with fine grain structure and better mechanical properties. The ultrasonic melt processing of light alloys has a long history that can be traced back to the 1960s. The first monograph was published in 1965 (G.I. Eskin. Ultrasonic Treatment of Molten Aluminum, Moscow, Metallurgiya, 1965), followed by two other monographs in 1988 (G.I. Eskin, Ultrasonic Treatment of Molten Aluminum, 2nd revised and enlarged edition, Moscow, Metallurgiya, 1988) and 1998 (G.I. Eskin, Ultrasonic Treatment of Light Alloy Melts, 1st edition, Amsterdam, Gordon and Breach, 1998). These books covered the fundamentals and practical application of ultrasonic melt treatment to main technologies of light metals, mostly based on the own research results"--