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Book Transport Phenomena in Materials Processing

Download or read book Transport Phenomena in Materials Processing written by and published by Academic Press. This book was released on 1996-06-25 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials processing and manufacturing are fields of growing importance whereby transport phenomena play a central role in many of the applications. This volume is one of the first collections of contributions on thesubject. The five papers cover a wide variety of applications

Book Transport Phenomena During Equiaxed Solidification of Alloys

Download or read book Transport Phenomena During Equiaxed Solidification of Alloys written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent progress in modeling of transport phenomena during dendritic alloy solidification is reviewed. Starting from the basic theorems of volume averaging, a general multiphase modeling framework is outlined. This framework allows for the incorporation of a variety of microscale phenomena in the macroscopic transport equations. For the case of diffusion dominated solidification, a simplified set of model equations is examined in detail and validated through comparisons with numerous experimental data for both columnar and equiaxed dendritic growth. This provides a critical assessment of the various model assumptions. Models that include melt flow and solid phase transport are also discussed, although their validation is still at an early stage. Several numerical results are presented that illustrate some of the profound effects of convective transport on the final compositional and structural characteristics of a solidified part. Important issues that deserve continuing attention are identified. Beckermann, C. and deGroh, H. C., III Glenn Research Center SOLIDIFICATION; BINARY ALLOYS; DENDRITIC CRYSTALS; MICROSTRUCTURE; MACROSCOPIC EQUATIONS; MODELS; TRANSPORT PROPERTIES; SOLID PHASES; MELTING; CONVECTION; DIFFUSION; LIQUID-SOLID INTERFACES; THERMAL CONDUCTIVITY; SPECIFIC HEAT; TEMPERATURE GRADIENTS; NUCLEATION...

Book Transport Phenomena in Solidification

Download or read book Transport Phenomena in Solidification written by and published by . This book was released on 1994 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Convective Transport Phenomena During Solidification of Binary Metal Alloys and the Effects of Magnetic Fields

Download or read book Convective Transport Phenomena During Solidification of Binary Metal Alloys and the Effects of Magnetic Fields written by Patrick John Prescott and published by . This book was released on 1992 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Modelling of Turbulent Transport Phenomena and Solidification in Continuous Casting Systems

Download or read book Modelling of Turbulent Transport Phenomena and Solidification in Continuous Casting Systems written by M. Reza Aboutalebi and published by . This book was released on 1994 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Macrosegregation of carbon in a steel billet caster was also modelled based on a continuum formulation, in which the conservation equations are derived in terms of mixture dependent variables. The effect of turbulence on the transport of solute in the liquid and mushy regions was taken into account using the $ kappa$-$ epsilon$ model adopted in this work." --

Book Studies on the Shrinkage induced Transport Phenomena During Alloy Solidification

Download or read book Studies on the Shrinkage induced Transport Phenomena During Alloy Solidification written by Kun-Chuan Chiang and published by . This book was released on 1990 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This dissertation presents an analytical study of shrinkage-induced transport phenomena during alloy solidification. A mathematical model, based on the continuum model, has been developed to investigate the shrinkage-induced fluid flow and the associated domain change, and its interaction with natural convection. The governing conservation equations were integrated over the control volume and the resulting discretization equations were solved by the SIMPLEC algorithm. Numerical calculations were performed for a typical material of 1% Cr-Steel. The results show that the shrinkage-induced fluid flow and corresponding domain change enhance the convective heat transfer rate. The global solidification time is found to be smaller than that predicted without the shrinkage-induced effect. Also, the isotherms in both the shrinkage-induced fluid flow and natural convection are almost the same, but the flow patterns are found to be very different. This behavior in the change of flow patterns can have a profound effect on the formation of casting defects"--Abstract, leaf iv.

Book A Study of Transport Phenomena and Interface Stability During Solidification of Binary Solutions Using Front Tracking Finite Elements

Download or read book A Study of Transport Phenomena and Interface Stability During Solidification of Binary Solutions Using Front Tracking Finite Elements written by Hai-Lung Tsai and published by . This book was released on 1984 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Transport Phenomena in Materials Processing

Download or read book Transport Phenomena in Materials Processing written by E.J. Poirer and published by Springer. This book was released on 2017-08-18 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Solidification

Download or read book Solidification written by Jonathan A. Dantzig and published by EPFL Press. This book was released on 2016-11-18 with total page 711 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Book Transport Phenomena in Materials Processing

Download or read book Transport Phenomena in Materials Processing written by David R. Poirier and published by Springer. This book was released on 2016-12-06 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text provides a teachable and readable approach to transport phenomena (momentum, heat, and mass transport) by providing numerous examples and applications, which are particularly important to metallurgical, ceramic, and materials engineers. Because the authors feel that it is important for students and practicing engineers to visualize the physical situations, they have attempted to lead the reader through the development and solution of the relevant differential equations by applying the familiar principles of conservation to numerous situations and by including many worked examples in each chapter. The book is organized in a manner characteristic of other texts in transport phenomena. Section I deals with the properties and mechanics of fluid motion; Section II with thermal properties and heat transfer; and Section III with diffusion and mass transfer. The authors depart from tradition by building on a presumed understanding of the relationships between the structure and properties of matter, particularly in the chapters devoted to the transport properties (viscosity, thermal conductivity, and the diffusion coefficients). In addition, generous portions of the text, numerous examples, and many problems at the ends of the chapters apply transport phenomena to materials processing.

Book Modelling of Turbulent Transport Phenomena and Solidification in Continuous Casting Systems microform

Download or read book Modelling of Turbulent Transport Phenomena and Solidification in Continuous Casting Systems microform written by M. Reza Aboutalebi and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1994 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: