Ultrasonic Treatment of Light Alloy Melts

NOTE EDITORE

Spawned by growing interest in ultrasonic technology and new developments in ultrasonic melt processing, the Second Edition of Ultrasonic Treatment of Light Alloy Melts discusses use of ultrasonic melt treatment in direct-chill casting, shape casting, rapid solidification, zone refining, and more, exploring the effects of power ultrasound on melt degassing, filtration, and refinement in aluminum and magnesium alloys. The fully revised and restructured Second Edition: Contains new, in-depth coverage of composite and nanocomposite materials Provides a historical review of the last century of ultrasonic applications to metallurgy Emphasizes the fundamentals, mechanisms, and applications of ultrasonic melt processing in different light-metal technologies Features new chapters on ultrasonic grain refinement, refinement of primary solid phases, and semi-solid processing of billets with nondendritic structure Includes significant updates reflecting results obtained over the past two decades on different scales, from laboratory to full-scale industrial implementations Complete with many new figures and examples, Ultrasonic Treatment of Light Alloy Melts, Second Edition delivers a comprehensive treatise on ultrasonic melt processing and cavitation, presenting essential guidelines for practical use and further development of the technology.

SOMMARIO

Preface Authors Historical Overview of Ultrasonic Applications to Metallurgy References Fundamentals of Ultrasonic Melt Processing Dynamic Means of Melt Processing Low-Frequency Vibrations and Ultrasound: Basic Equations Propagation of Acoustic Waves in the Melt Acoustic Cavitation in Liquid Metals Cavitation Strength of Liquids Cavity Dynamics Cavitation Region in Liquids Acoustic Flows Experimental Studies of Cavitation in Liquid Metals Sonoluminescence in Melts Accelerated Mixing and Dissolution of Components in the Melt References Ultrasonic Degassing Cavitation and Degassing Nuclei Mechanism of Ultrasonic Degassing Ultrasonic Degassing in a Stationary Volume Ultrasonic Degassing in the Flow References Ultrasonic Filtration Effect of Ultrasound on Surface Tension and Wetting Sonocapillary Effect Basics of Filtration Mechanism of Ultrasonic Melt Filtration Filtering through Multilayer Screen Filters: Usfirals Process References Ultrasonic Grain Refinement Mechanisms of Ultrasonic Grain Refinement Activation of Substrates Deagglomeration and Dispersion of Particles Refinement of Nucleating Intermetallics Dendrite Fragmentation Nondendritic Solidification Ultrasonic Melt Processing in the Mold Ultrasonic Melt Processing in the Melt Flow References Refinement of Primary Particles Formation of Primary Particles during Solidification Effect of Ultrasound on Solidification of Intermetallic Compounds Effect of Ultrasound on the Solidification of Hypereutectic Al–Si Alloys References Ultrasonic Processing during Direct-Chill Casting of Light Alloys Direct-Chill Casting of Aluminum Alloys Ultrasonic Processing in the Sump of a Billet Ultrasonic Melt Processing in the Launder Direct-Chill Casting of Magnesium Alloys Effect of Ultrasonic Degassing and Filtration on Structure and Properties of Wrought Products Ultrasonic Degassing Ultrasonic Filtration Effect of Nondendritic Structure on Structure and Properties of Wrought Products Aluminum Wrought Alloys Magnesium Wrought Alloys Effect of Nondendritic Grain Structure on Homogenization References Ultrasonic Melt Processing during Shape Casting of Light Alloys Technological Approaches to Shape Casting with Ultrasonic Processing Effects of Ultrasonic Processing on Solidification in Molds Effect of Ultrasonic Processing on Structure and Properties of Shape Castings References Ultrasonic Processing of Composite and Immiscible Alloys Ultrasound-Assisted Introduction of Nonmetallic Particles and Fibers to Liquid Metals Mechanical Properties of Composite Materials Produced Using Ultrasonic Processing Ultrasonic Processing of Immiscible Alloys and Metallic Emulsions References Rapid Ultrasonic Solidification of Aluminum Alloys Basic Sonication Schemes for Rapid Solidification Formation of Nondendritic Structure in Rapid Solidification Mechanical Properties of Wrought Products from Nondendritic Granules References Zone Refining of Aluminum with Ultrasonic Melt Processing Basics of Zone Refining Ultrasonic Zone Refining of Aluminum Mechanisms of Sonication Effects on Zone Refining Structure and Characteristics of Deformed Acoustically Refined Aluminum References Semisolid Deformation of Billets with Nondendritic Structure Introduction to Semisolid Deformation 291 Effect of Nondendritic Structure of Billets on Thixotropic Behavior of Aluminum Alloys Rheological Parameters of Semisolid Alloys Computer Simulation of Semisolid Forging Semisolid Deformation of Casting Alloys with Nondendritic Grain Structure Application of Ultrasonic Processing to Rheocasting References Ultrasonic Melt Processing: Practical Issues Ultrasonic Equipment Design of Waveguide and Sonotrode Selection of Materials for Sonotrodes Characterization of Ultrasonic Processing References

AUTORE

Georgy I. Eskin, Dr. Sc, Ph.D, is a world-renowned specialist in the application of ultrasound in metals processing, specifically in degassing, filtration, and grain refinement during casting of aluminum and magnesium alloys. He holds over 100 patents in ultrasonic melt processing and has authored and co-authored more than 400 scientific papers and 10 monographs, reference books, and textbooks. A full member of the Russian Academy of Natural Sciences, he has worked in industry as a research scientist, in the All-Russia Institute of Light Alloys as a senior and principal scientist, and in the Moscow Institute of Steel and Alloys as a professor. Dmitry G. Eskin, Ph.D, is a well-known specialist in light-metal processing. His main scientific contributions are to the processing of multicomponent alloys and to the formation of structure and defects during solidification of aluminum alloys. He is currently a professor in solidification research at Brunel University. He has authored and co-authored more than 180 scientific papers, 5 patents, and 5 monographs. Previously he worked in the Baikov Institute of Metallurgy (Russian Academy of Sciences) as a senior scientist and held various senior research positions with the Netherlands Institute for Metals Research, Materials innovation institute and Delft University of Technology.

ALTRE INFORMAZIONI

• Condizione: Nuovo
• ISBN: 9781138075979
• Collana: Advances in Metallic Alloys
• Dimensioni: 9.25 x 6.25 in Ø 1.00 lb
• Formato: Brossura
• Illustration Notes: 278 b/w images, 80 tables and Approx 115 equations
• Pagine Arabe: 346