Download or read book Modeling of Fluid Flow and Porosity Formation During Casting Solidification written by Fon-Chieh Chang and published by . This book was released on 1991 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling for Casting and Solidification Processing written by Kuang-Oscar Yu and published by CRC Press. This book was released on 2001-10-16 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text seeks to provide a comprehensive technical foundation and practical examples for casting process modelling technology. It highlights fundamental theory for solidification and useful applications for industrial production. It also details shape and ingot castings, semi-solid metalworking, and spray forming.
Download or read book Modeling of the Formation of Microporosity in Alloys written by and published by . This book was released on 1993 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete mathematical model, consisting of a continuum model and a gas evolution model, was established for the prediction of shrinkage- and gas-caused porosity in castings. The model allows simultaneous calculation of transient temperature, velocity, pressure, and porosity distributions in a solidifying casting. Fluid flow caused by both natural convection and solidification contraction, as well as change of global domain due to shrinkage, were considered. A parametric study was performed to investigate the effects of various solidification variables in the formation of microporosity, including the use of chilling, initial gas content, characteristics of heat transfer between the casting and the mold, casting size, and riser height. It was found that a low initial gas content in the molten metal and casting conditions that facilitate solidification-rate decrease the formation of microporosity. The calculated porosity distribution in 1% Cr-steel alloys compares favorably with published experimental data.
Download or read book Solidification of Aluminum Alloys written by Men G. Chu and published by Wiley-TMS. This book was released on 2004-03 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses progress in the application of solidificationprinciples to the production of aluminum alloys. Topics includemicrostructure evolution, phase formation and solidification pathanalysis, grain refinement, micro/macro-segregation, mechanicalbehavior/properties in the mushy state, solidificationcracking/tearing, gas/shrinkage porosity formation, effect ofimpurities/trace elements, and the impact of cast structure on thesubsequent fabrication and properties of finished products. Paperson the experimental or theoretical simulation of solidificationaspects of casting processes including direct chill casting,continuous casting, shaped casting, semi-solid processing, andother advanced casting technologies are also included, as well asexamples showing the use of solidification principles to solveindustrial problems. From ahref="http://www.tms.org/Meetings/Annual-04/AnnMtg04Home.html"target="_blank"2004 TMS Annual Meeting/a to be held inCharlotte, North Carolina, March 14 - 18, 2004.
Download or read book Advances in the Science and Engineering of Casting Solidification written by Laurentiu Nastac and published by Springer. This book was released on 2016-12-16 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Modeling of Shrinkage Porosity Defect Formation During Alloy Solidification written by Vahid Khalajzadeh and published by . This book was released on 2018 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The model, called "advanced feeding model", includes 3D multi-phase continuity, momentum and pore growth rate equations which inputs the material properties and transient temperature fields, and outputs the feeding velocity, liquid pressure and porosity distributions in castings. To solve the model equations, a computational code with a finite-volume approach is developed for the flow calculations. To validate the model, predicted results are compared with the experimental data. The comparison results show that the advanced feeding model can accurately predict the occurrence of shrinkage porosity defects in metal castings. Finally, the model is optimized by performing several parametric studies on the model variables.
Download or read book Science and Engineering of Casting Solidification written by Doru Michael Stefanescu and published by Springer. This book was released on 2015-08-27 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 3rd edition of this popular textbook covers current topics in all areas of casting solidification. Partial differential equations and numerical analysis are used extensively throughout the text, with numerous calculation examples, to help the reader in achieving a working knowledge of computational solidification modeling. The features of this new edition include: • new chapters on semi-solid and metal matrix composites solidification • a significantly extended treatment of multiscale modeling of solidification and its applications to commercial alloys • a survey of new topics such as solidification of multicomponent alloys and molecular dynamic modeling • new theories, including a theory on oxide bi-films in the treatment of shrinkage problems • an in-depth treatment of the theoretical aspects of the solidification of the most important commercial alloys including steel, cast iron, aluminum-silicon eutectics, and superalloys • updated tables of material constants.
Download or read book Modeling of Porosity Formation and Feeding Flow During Casting of Steel and Aluminum Alloys written by Zhiping Lin and published by . This book was released on 2004 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Science and Engineering of Casting Solidification Second Edition written by Doru Michael Stefanescu and published by Springer Science & Business Media. This book was released on 2008-12-03 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Modeling of Casting Welding and Advanced Solidification Processes X written by Doru Michael Stefanescu and published by Minerals, Metals, & Materials Society. This book was released on 2003 with total page 778 pages. Available in PDF, EPUB and Kindle. Book excerpt: The latest in a series of proceedings from conferences sponsored by Engineering Conferences International (formerly the Engineering Foundation), this volume captures the current state of the art in the field of mathematical modeling of casting and welding processes. This edition deals with such traditional issues as microstructure formation, mushy zone rheology, segregation, microporosity, and thermo-mechanical simulation, as well as new themes reflecting industrial needs, including simulation of melting and solid separation in the melt (inclusion removal) and simulation of aggregate and porous materials (mold and core simulation). This book contains 90 papers as well as abstracts of invited talks. The proceedings focus primarily on the continuous development of tools for simulation of microstructure evolution, database and critical experiments, and shaped-casting simulation.
Download or read book Numerical Modeling of Porosity and Macrosegregation in Continuous Casting of Steel written by Pengfei Du and published by . This book was released on 2013 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the solid phase velocity is not zero and mixture density is not assumed to be constant, porosity and macrosegregation due to both solid deformation and shrinkage effects are incorporated. In order to validate the model, the pressure field of a three-dimensional pure metal solidification system is simulated. The results show the feasibility of the proposed model to predict the fluid flow. The porosity and macrosegregation prediction for different casting conditions are performed. The results confirm the necessity of including solid phase deformation in the prediction of porosity and centerline macrosegregation. The results also reveal the relations between different operating conditions (such as degree of bulging, soft reduction, and casting speed) and the porosity/macrosegregation defects in the final product.
Download or read book Solidification and Casting written by Brian Cantor and published by CRC Press. This book was released on 2002-12-06 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by leading experts in their respective fields, Solidification and Casting provides a comprehensive review of topics fundamental to metallurgy and materials science as well as indicates recent trends. From an industrial perspective, the book begins with chapters on the casting techniques most commonly used in industry today. It then describes the underlying science fundamental to solidification mechanisms, including fluid flow, the effects of cooling rates, modern simulation, and modelling methods in use and their application in various casting scenarios. Next, the authors consider the microstructure of cast materials and their defects, and explore how different casting processes can control these parameters. The book concludes with the most recent developments in the field and discusses new processes and materials, such as novel alloys and composites, metallic glasses, ceramics, and superconducting oxides.
Download or read book Fluid Flow Heat Transfer and Solidification in Continuous Casting Mold written by Manish Kamal and published by . This book was released on 2003 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling for Casting and Solidification Processing written by Kuang-Oscar Yu and published by CRC Press. This book was released on 2001-10-16 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text seeks to provide a comprehensive technical foundation and practical examples for casting process modelling technology. It highlights fundamental theory for solidification and useful applications for industrial production. It also details shape and ingot castings, semi-solid metalworking, and spray forming.
Download or read book Casting Processes and Modelling of Metallic Materials written by Zak Abdallah and published by BoD – Books on Demand. This book was released on 2021-02-24 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, Casting Processes and Modelling of Metallic Materials, explores the various casting and modelling activities related to metallic alloy systems. The book provides results of research work conducted by experts from all over the globe to add to the research community in the era of the casting process and modelling. The book was edited by two experts in the field of materials science and modelling, Dr. Abdallah and Dr. Aldoumani, whom both have several publications in peer-reviewed journals, worldwide conferences, and scientific books. The book introduces the casting processes and then discusses the various issues and possible solutions. Over the past years, various models have been proposed and utilized to predict the performance of castings. Some of these models proved to be accurate whereas others failed to predict the casting performance. The strength of any predictive tool depends on the employment of physically meaningful parameters that replicate the real-life conditions. This has been illustrated in the current book with such predictive models and finite element (FE) modelling to illustrate the behaviour of castings in real-life conditions.
Download or read book Numerical Simulation of Solidification and Porosity Formation in Castings written by Kaushlendra Singh and published by . This book was released on 1988 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling of Casting Welding and Advanced Solidification Processes V written by Michel Rappaz and published by Minerals, Metals, & Materials Society. This book was released on 1991 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
