Science and Engineering of Casting Solidification, Second Edition

Author: Doru Michael Stefanescu

Publisher: Springer Science & Business Media

ISBN: 0387746129

Category: Science

Page: 380

View: 6778

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Stefanescu here attempts to describe solidification theory through the complex mathematical apparatus required for a fundamental treatment of the problem. The mathematics is however restricted to the elements essential to attain a working knowledge in the field. This is in line with the main goal of the book, which is to educate the reader in the fast moving area of computational modeling of solidification of castings. A special effort has been made to introduce the reader to the latest developments in solidification theory including, in this second edition, a new chapter on semi-solid casting.
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Science and Engineering of Casting Solidification, Second Edition

Author: Doru Stefanescu

Publisher: Springer

ISBN: 9781441945099

Category: Science

Page: 380

View: 6461

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Stefanescu here attempts to describe solidification theory through the complex mathematical apparatus required for a fundamental treatment of the problem. The mathematics is however restricted to the elements essential to attain a working knowledge in the field. This is in line with the main goal of the book, which is to educate the reader in the fast moving area of computational modeling of solidification of castings. A special effort has been made to introduce the reader to the latest developments in solidification theory including, in this second edition, a new chapter on semi-solid casting.
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Science and Engineering of Casting Solidification

Author: Doru Michael Stefanescu

Publisher: Springer Science & Business Media

ISBN: 9780306467509

Category: Mathematics

Page: 342

View: 7725

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Casting of metals evolved first as witchcraft, gradually became an art, then technology, and became only recently a science. Many of the processes used in a metal casting are still empirical in nature, but many others are deeply rooted in mathematics. In whatever form, casting of metals is an activity fundamental in the very existence of our world, as we know it today. Foundry reports indicate that solidification modeling is not only a cost-effective investment but also a major technical asset. It helps foundries move into markets with more complex and technically demanding work. However, to the best of the author's knowledge, there have been no attempts to synthesize the information that can be used for engineering calculations pertinent to computational modeling of casting solidification. This book is based on the author's thirty years of experience with teaching, research and the industrial practice of solidification science as applied to casting processes. It is an attempt to describe solidification theory through the complex mathematical apparatus that includes partial differential equations and numerical analysis, which are required for a fundamental treatment of the problem. The mathematics, however, is restricted to the element essential to attain a working knowledge of the field. This is in line with the main goal of the book, which is to educate the reader in the fast moving area of computational modeling of solidification of casting. For the sake of completeness, a special effort has been made to introduce the reader to the latest developments in solidification theory, even if the reader has no engineering applications at this time. The text is designed to be self-contained. The author's teaching experience demonstrates that some of the students interested in solidification science are not fully proficient in partial differential equations (PDE) and/or numerical analysis. Accordingly, elements of PDE and numerical analysis, required to obtain a working knowledge of computational solidification modeling, have been introduced in the text while attempting to avoid the interruption of the fluency of the subject. Numerous modeling and calculation examples using the Excel spreadsheet as an engineering tool are provided. The book is addressed to graduate students and seniors in solidification science, as well as to industrial researchers who work in the field of solidification in general and casting modeling in particular.
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Advances in the Science and Engineering of Casting Solidification

An MPMD Symposium Honoring Doru Michael Stefanescu

Author: Laurentiu Nastac,Baicheng Liu,Hasse Fredriksson,Jacques Lacaze,Chun-Pyo Hong,Adrian Catalina,Andreas Buhrig-Polaczek,Charles Monroe,Adrian Sabau,Roxana Elena Ligia Ruxanda,Alan Luo,Subhayu Sen,Attila Diószegi

Publisher: Springer

ISBN: 3319481177

Category: Technology & Engineering

Page: 417

View: 1132

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This collection encompasses the following four areas: (1) Solidification processing: theoretical and experimental investigations of solidification processes including castings solidification, directional solidification of alloys, electromagnetic stirring, ultrasonic cavitation, mechanical vibration, active cooling and heating, powder bed-electron beam melting additive manufacturing, etc. for processing of metals, polymers and composite materials; (2) Microstructure Evolution: theoretical and experimental studies related to microstructure evolution of materials including prediction of solidification-related defects and particle pushing/engulfment aspects; (3) Novel Casting and Molding Processes: modeling and experimental aspects including high pressure die casting, permanent casting, centrifugal casting, low pressure casting, 3D silica sand mold printing, etc.; and (4) Cast Iron: all aspects related to cast iron characterization, computational and analytical modeling, and processing.
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Solidification

2nd Edition - Revised & Expanded

Author: Jonathan A. Dantzig,Michel Rappaz

Publisher: EPFL Press

ISBN: 2940222975

Category: Science

Page: 636

View: 5553

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Solidification is one of the oldest processes for producing complex shapes for applications ranging from art to industry, and remains as one of the most important commercial processes for many materials. Since the 1980s, numerous fundamental developments in the understanding of solidification processes and microstructure formation have come from both analytical theories and the application of computational techniques using commonly available powerful computers. This book integrates these developments in a comprehensive volume that also presents and places them in the context of more classical theories. This second edition highlights the key concepts within each chapter to help guide the reader through the most important aspects of the topics. The figures are now in color, in order to improve the visualization of phenomena and concepts. Recent important developments in the field since the first edition was published have also been added. The three-part text is aimed at graduate and professional engineers. The first part, Fundamentals and Macroscale Phenomena, presents the thermodynamics of solutions and then builds on that subject to motivate and describe equilibrium phase diagrams. Transport phenomena are discussed next, focusing on the issues of most importance to liquid-solid phase transformations, then moving on to describing in detail both analytical and numerical approaches to solving such problems. The second part, Microstructure, employs these fundamental concepts for the treatment of nucleation, dendritic growth, microsegregation, eutectic and peritectic solidification, and microstructure competition. This part concludes with a chapter describing the coupling of macro- and microscopic phenomena in microstructure development. The third and final part describes various types of Defects that may occur, with emphasis on porosity, hot tearing and macrosegregation, presented using the modeling tools and microstructure descriptions developed earlier.
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Castings

Author: John Campbell

Publisher: Elsevier

ISBN: 9780080488448

Category: Technology & Engineering

Page: 352

View: 2249

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This is the key publication for professionals and students in the metallurgy and foundry field. Fully revised and expanded, Castings Second Edition covers the latest developments in the understanding of the role of the liquid metal in controlling the properties of cast materials, and indeed, of all metallic materials that have started in the cast form. Practising foundry engineers, designers, and students will find the revealing insights into the behaviour of castings essential in developing their inderstanding and practice. John Campbell OBE is a leading international figure in the castings industry, with over four decades of experience. He is the originator of the Cosworth Casting Process, the pre-eminent production process for automobile cylinder heads and blocks. He is also co-inventor of both the Baxi Casting Process (now owned by Alcoa) developed in the UK, and the newly emerging Alotech Casting Process in the USA. He is Professor of Casting Technology at the University of Birmingham, UK. * New edition of this internationally respected reference and textbook for engineers and students; * Develops understanding of the concepts and practice of casting operations; * 'Castings' is the key work on castings technology and process metallurgy, and an essential resource on contemporary developments and thinking on the new metallurgy of cast alloys; * Revised and updated throughout, with new material on subjects including surface turbulence, the new theory of entrainment defects including folded film defects, plus the latest concepts of alloy theory.
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Ultrasonic Treatment of Light Alloy Melts, Second Edition

Author: Georgy I. Eskin,Dmitry G. Eskin

Publisher: CRC Press

ISBN: 1466577983

Category: Technology & Engineering

Page: 346

View: 6017

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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.
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Complete Casting Handbook

Metal Casting Processes, Metallurgy, Techniques and Design

Author: John Campbell

Publisher: Elsevier

ISBN: 1856178099

Category: Technology & Engineering

Page: 1130

View: 3078

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Part II: Casting Metallurgy 1. The Melt 2. Entrainment 3. Flow 4. Molds and Cores (updated and expanded) 5. Solidification Structure 6. Casting Alloys (new chapter) 7. Porosity 8. Cracks and Tears (new consolidated chapter) 9. Properties of Castings Part II: Casting Manufacture 10. The 10 Rules 11. Filling System Design Fundamentals 12. Filling System Components 13. Filling System Design Practice 14. Melting 15. Molding 16. Casting 17. Controlled Solidification Techniques 18. Dimensional Accuracy 19. Post-Casting Processing Index.
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Casting Aluminum Alloys

Their Physical and Mechanical Metallurgy

Author: Michael V Glazoff,Alexandra Khvan,Vadim S Zolotorevsky,Nikolai A Belov,Alan Dinsdale

Publisher: Butterworth-Heinemann

ISBN: 0128121149

Category: Technology & Engineering

Page: 562

View: 2207

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Casting Aluminum Alloys, Second Edition, the follow up to the fall 2007 work on the structure, properties, thermal resistance, corrosion and fatigue of aluminum alloys in industrial manufacturing, discusses findings from the past decade, including sections on new casting alloys, novel casting technologies, and new methods of alloys design. The book also includes other hot topics, such as the implementation of computational technologies for the calculation of phase equilibria and thermodynamic properties of alloys, the development of software for calculation of diffusion processes in aluminum alloys, computational modeling of solidification microstructure and texture evolution of multi-component aluminum materials. In addition to changes in computational predictive abilities, there is a review of novel casting aluminum alloy compositions and properties, as well as descriptions of new casting technologies and updates to coverage on the mechanical properties of aluminum casting alloys. Presents a discussion of thermodynamic calculations used for assessing non-equilibrium solidifications of casting aluminum alloys Expands coverage of mathematical models for alloy mechanical properties, helping facilitate the selection of the best prospective candidate for new alloy development Contains a new section that describes the self-consistent evaluation of phase equilibria and thermodynamic properties of aluminum alloys
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Physical Metallurgy

Principles and Practice

Author: RAGHAVAN V.

Publisher: PHI Learning Pvt. Ltd.

ISBN: 8120330129

Category: Technology & Engineering

Page: 248

View: 5883

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This well-established book, now in its Second Edition, presents the principles and applications of engineering metals and alloys in a highly readable form. This new edition retains all the basic topics such as phase diagrams, phase transformations, heat treatment of steels and nonferrous alloys, solidification, fatigue, fracture and corrosion covered in the First Edition. The text has been updated and rewritten for greater clarity. Also, more diagrams have been added to illustrate the concepts discussed. This Edition gives New Sections on : • Thermoelastic martensite • Shape memory alloys • Rapid solidification processing • Quaternary phase diagrams Intended as a text for undergraduate courses in Metallurgy/Metallurgical and Materials Engineering, this book is also suitable for students preparing for associate membership examination of Indian Institute of Metals (AMIIM), as well as other professional examinations like AMIE.
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