Download or read book CAFE Simulation of Columnar to equiaxed Transition in Al 7wt Si Alloys Directionally Solidified Under Microgravity written by D. R. Liu and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solidification and Gravity VI written by A. Roósz and published by Trans Tech Publications Ltd. This book was released on 2014-05-09 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of many foreign and Hungarian researchers presented at the 6th International Conference on Solidification and Gravity, in Miskolc-Lillafüred, on September 2-5, 2013 have been collected in this volume. This conference series is aimed to attract all those having interest in the investigation and simulation of different types of solidification processes and both micro- and macro-gravity effects. Within the framework of the conference a MICAST meeting (Microstructure Formation in Casting of Technical Alloys under Diffusive and Magnetically Controlled Convective Conditions) was organized on September 5-6, 2013. The 2013 conference was a memorial one for Professor Hans Eckart Exner and Professor Erik György Fuchs who had died in the period between the previous (2008) and the last (2013) conference.
Download or read book Modelling of Columnar to Equiaxed Transition in Alloy Solidification written by Wajira U. Mirihanage and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Front Tracking Model for Predicting the Columnar to Equiaxed Transition in Alloy Solidification written by Shuan McFadden and published by . This book was released on 2007 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulations of Crystal Growth of an Alloy Under Microgravity Conditions written by James E. Simpson and published by BiblioGov. This book was released on 2013-08 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: The directional solidification of a dilute binary alloy (Bi-1.0 at.%Sn)is investigated. Results are obtained at a gravity level of I pg. Computations are performed in two dimensions with a fixed, non-uniform grid. The simulation involves a solution of the species concentration equation (modified to account for solute rejection at the interface) and energy equation (modified to account for phase-change) for both the solid and liquid phases, in addition to the constitutive equations for describing convective flow in the melt. The effects of conductive heat transfer in the ampoule and in a capillary tube in the sample are included. To gauge the effects of including this growth capillary tube in the apparatus, simulations both with and without the capillary tube are presented and compared. Fully transient simulations have been performed; no simplifying steady-state approximations are used, however, the influence of solute on the melting temperature at the interface is not included. Both thermal and solutal convective cells are seen to form. Convective velocities are significantly damped inside the capillary, causing less segregation due to convection. As solidification proceeds beyond the capillary tube, longitudinal segregation arises as a result of the change in cross-sectional area of solidifying material. The magnitudes of the velocities in this cell increase significantly once the solid/liquid front passes beyond the end of the capillary tube; this causes a corresponding increase in the level of radial solute segregation in the solidified material.
Download or read book Lattice Boltzmann Modeling written by Michael C. Sukop and published by Springer Science & Business Media. This book was released on 2007-04-05 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here is a basic introduction to Lattice Boltzmann models that emphasizes intuition and simplistic conceptualization of processes, while avoiding the complex mathematics that underlies LB models. The model is viewed from a particle perspective where collisions, streaming, and particle-particle/particle-surface interactions constitute the entire conceptual framework. Beginners and those whose interest is in model application over detailed mathematics will find this a powerful 'quick start' guide. Example simulations, exercises, and computer codes are included.
Download or read book A Peacebuilding Tool for a Conflict Sensitive Approach to Development written by Asian Development Bank and published by Asian Development Bank. This book was released on 2012-03-01 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Asian Development Bank (ADB) works with a number of developing member countries facing fragile and conflict-affected situations---circumstances that complicate economic development, and might include domestic or international conflict, ethnic tensions, vulnerability to natural disasters, or a confluence of these factors. ADB piloted the peacebuilding tool in Nepal as a conflict-sensitive approach, a key to effective and safe implementation of projects in the country's post-conflict context. The peacebuilding tool is an analytical tool for assisting project team leaders and social experts in understanding the local context, and in identifying potential risks to implementation of development projects that are linked to social conflicts, as well as in formulating mitigation measures for addressing these risks.
Download or read book Advances in the Science and Engineering of Casting Solidification written by Laurentiu Nastac and published by John Wiley & Sons. This book was released on 2015-02-18 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book contains the proceedings of the honorary symposium “Advances in the Science and Engineering of Casting Solidification” (TMS2015, Orlando, Florida, March 15-19, 2015) held in honor of Professor Doru Michael Stefanescu, Emeritus Professor, Ohio State University and the University of Alabama, USA. The book 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 International Space Station Benefits for Humanity Np 2015 01 001 jsc written by National Aeronautics and Space Administration and published by Createspace Independent Publishing Platform. This book was released on 2017-11-02 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication shares the successes of the International Space Station (ISS) in this second edition of the International Space Station Benefits for Humanity. The ISS is a unique scientific platform that has existed since 1998. The tremendous value of the ISS began through the engineering achievement evolving over a decade. Components were built in various countries around the world-all without the benefit of prior ground testing-allowing us to learn a vast amount about construction and about how humans and spacecraft systems function in orbit. This testament to the international achievement exemplifies cultural harmonization through cooperative teamwork leading to an international partnership that has continued to flourish and foster international cooperation. While each ISS partner has distinct agency goals for research conducted, a unified goal exists to extend the knowledge gleaned to benefit all humankind. In the first edition of the book released in 2012, the scientific, technological and educational accomplishments of ISS research that have an impact on life on Earth were summarized through a compilation of stories. The many benefits being realized were primarily in the areas of human health, Earth observations and disaster response, and global education. This second edition includes updated statistics on the impacts of those benefits as well as new benefits that have developed since the first publication. In addition, two new sections have been added to the book: Economic Development of Space and Innovative Technology. Economic Development of Space highlights case studies from public-private partnerships that are leading to a new economy in low-Earth orbit (LEO). Businesses provide both transportation to the ISS as well as some research facilities and services. These relationships promote a paradigm shift of government-funded, contractor-provided goods and services to commercially-provided goods purchased by government agencies. Other examples include commercial firms spending their research and development dollars to conduct investigations on ISS and commercial service providers selling services directly to ISS users. This section provides examples of the use of ISS as a testbed for new business relationships and illustrates successful partnerships. The second new section, Innovative Technology, merges technology demonstration and physical science findings that promise to return Earth benefits through continued research. Examples include robotic refueling concepts for life extensions of costly satellites in geo-synchronous orbit that have applications to the robotics industry on Earth, flame behavior experiments that reveal insight into how fuel burns in microgravity leading to the possibility of improving engine efficiency on Earth, and nanostructures and smart fluids examples of materials improvements that are being developed using data from ISS. This publication also expands the benefits of research results in human health, environmental change and disaster response and in education activities developed to capture student imaginations in support of Science, Technology, Engineering and Mathematics, or STEM, education, internationally. Applications to human health of the knowledge gained on ISS continue to grow and improve healthcare technologies and our understanding of human physiology. The ISS is a stepping stone for future space exploration, as the only orbiting multi-disciplinary laboratory of its kind returning research results that develop LEO and improve life on our planet. The goal of this publication is to serve as a source of pride to those who read it and learn of the unique shared laboratory orbiting our planet that provides ground for critical technologies and ways to keep humans healthy in space.
Download or read book Dynamics and Patterns in Complex Fluids written by Akira Ōnuki and published by Springer. This book was released on 1990 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phase Transformations in Materials written by G. Kostorz and published by Wiley-VCH. This book was released on 2001-10-25 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: For all kinds of materials, phase transformations show common phenomena and mechanisms, and often turn a material, for example metals, multiphase alloys, ceramics or composites, into its technological useful form. The physics and thermodynamics of a transformation from the solid to liquid state or from one crystal form to another are therefore essential for creating high-performance materials. This handbook covers phase transformations, a general phenomenon central to understanding the behavior of materials and for creating high-performance materials. It will be an essential reference for all materials scientists, physicists and engineers involved in the research and development of new high performance materials. It is the revised and enhanced edition of the renowned book edited by the late P. Haasen in 1990 (Vol. 5, Materials Science and Technology).
Download or read book Solidification and Casting written by G. J. Davies and published by . This book was released on 1973 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics of Functional Materials written by Hasse Fredriksson and published by John Wiley & Sons. This book was released on 2008-09-15 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by academics with more than 30 years experience teaching physics and material science, this book will act as a one-stop reference on functional materials. Offering a complete coverage of functional materials, this unique book deals with all three states of the material, providing an insightful overview of this subject not before seen in other texts. Includes solved examples, a number of exercises and answers to the exercises. Aims to promote understanding of the subject as a basis for higher studies. The use of mathematically complicated quantum mechanical equations will be minimized to aid understanding. For Instructors & Students: Visit Wiley’s Higher Education Site for: Supplements Online Resources Technology Solutions Instructors may request an evaluation copy for this title.
Download or read book Science and Engineering of Casting Solidification written by Doru Michael Stefanescu and published by Springer. This book was released on 2016-10-22 with total page 556 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 The Physical Metallurgy of Cast Iron written by H. Fredriksson and published by North Holland. This book was released on 1985 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the Third International Symposium on the Physical Metallurgy of Cast Iron, discusses solidification of cast iron alloys, solid state transformation in cast iron alloys, and the relationship between microstructure and mechanical properties. Also examined are newly developed alloys, and new trends in cast iron research. Based on basic knowledge of the physical metallurgy of cast iron, this volume is a valuable reference source for physical metallurgists, foundry and mechanical engineers and materials scientists.
Download or read book Manufacturing Cost Estimating written by Phillip F. Ostwald and published by . This book was released on 1980 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling of Casting Welding and Advanced Solidification Processes written by Steve L. Cockcroft and published by Wiley-TMS. This book was released on 2009-06-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings encapsulate the progress made in modeling casting processes and liquid-solid phase transformations over the years. The papers presented provide a clear picture of the modeling activities for processes involving solidification, covering continuous casting, welding, remelting, semi-solid, and shape and ingot casting processes. Other topics related to casting technologies, such as liquid metal treatment and casting tools (e.g., mold manufacturing and life time), are also examined. These proceedings bring together leading academic research that brings up to date information from the industry. Classical studies of structure and segregation formed upon solidification as well as new in-situ observation techniques are addressed. A collection of papers from the 12th International Conference held in Vancouver, British Columbia June 7th-14th, 2009.
