Download or read book The Effect of Solidification Rates and Thermal Gradients in an Aluminum Alloy written by Frank John Worzala and published by . This book was released on 1958 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effect of Temperature Gradient on Solidification in Aluminum copper Alloys written by Doarde G. Triponi and published by . This book was released on 1956 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Rapid Solidification Techniques to Aluminum Alloys written by C. G. Lebi and published by . This book was released on 1978 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This portion of the program was conducted for the purpose of developing a predictive model of heat flow and solidification for aluminum alloys produced under the high cooling rate conditions achievable in atomization processes. It is a combined experimental and theoretical study of the relationship between the important solidification variables (e.g. cooling rate, temperature gradients, interface shape and velocity, supercooling and transformation kinetics) and the structure of rapidly solidified aluminum alloy powders. This report covers that portion of the investigations which addressed the characterization of the thermal history of rapid solidification in metal droplets, and its effects on powder microstructure. The main effort was focused on modelling the heat flow during solidification, and relationships were established between the atomization parameters, the growth kinetics, the interface velocity and undercooling, and other important variables. Numerical solutions based on the enthalpy model were developed, and their results compared to the trends predicted from the Newtonian model. The analysis covered situations of isothermal solidification at the melting temperature, as well as those where significant undercoolings are necessary for nucleation and growth. The implications of single vs. multiple nucleation were also discussed. The concepts developed from the heat flow analysis were coupled to microstructural observations in Aluminum alloy powders, mostly in the submicron size range. It was shown that reducing the particle size decreases the extent of segregation, promotes multiple nucleation and the formation of twins during solidification.
Download or read book Effect of Production Conditions on Physical and Mechanical Properties of Aluminum with Low Iron Concentrates written by Ali Akbar Nayebhashemi and published by . This book was released on 1980 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solidification Processing of Metallic Alloys Under External Fields written by Dmitry G. Eskin and published by Springer. This book was released on 2018-10-09 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the application of external physical fields to the solidification processing of metallic alloys. Leading academics from around the world present comprehensive and critical reviews on state-of-the-art research and discuss possible future directions. Major physical fields, including electromagnetic, electric, acoustic, and thermal, are considered. In addition, the most advanced synchrotron X-ray based real-time and in-situ studies and numerical modeling methodologies are reviewed and discussed, with a special emphasis on their applications to the solidification processes. Throughout, all chapters are illustrated with both historical and very recent research cases, including typical examples of in-situ studies, modeling, and simulation. This book contains essential knowledge and information suitable for a wide audience, from undergraduate and postgraduate students to academics, practicing researchers, and engineers in materials, metallurgy, and manufacturing.
Download or read book Influence of Processing Variables and Aluminum Content on the Microstructure and Mechanical Properties of Cast Mg Al Alloys written by Blair Edward Carlson and published by . This book was released on 1997 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Casting Aluminum Alloys written by Michael V Glazoff and published by Elsevier. This book was released on 2010-07-07 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: Casting Aluminum Alloys summarizes research conducted at Moscow Institute of Steel and Alloy during many decades in part together with Alcoa Inc. The research covered areas of the structure, properties, thermal resistance, corrosion and fatigue of aluminum alloys in industrial manufacturing. - Emphasis on interconnection among phase equilibria, thermodynamics and microstructure of alloys - Systematic overview of all phase diagrams with Al that are important for the development of casting aluminium alloys - Diagrams ("processing windows") of important technological properties such as castability, molten metal fluidity, tendency to hot pre-solidification cracking, porosity - Mathematical models for alloy mechanical properties facilitating the down-selection of best prospect candidates for new alloy development - New principles of design of eutectic casting aluminium alloys - Examples of successful novel casting alloy development, including alloys for high-strength applications, alloys with transition metals, and novel alloys utilizing aluminium scrap
Download or read book Fundamentals of Aluminium Metallurgy written by Roger Lumley and published by Elsevier. This book was released on 2010-11-25 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aluminium is an important metal in manufacturing, due to its versatile properties and the many applications of both the processed metal and its alloys in different industries. Fundamentals of aluminium metallurgy provides a comprehensive overview of the production, properties and processing of aluminium, and its applications in manufacturing industries.Part one discusses different methods of producing and casting aluminium, covering areas such as casting of alloys, quality issues and specific production methods such as high-pressure diecasting. The metallurgical properties of aluminium and its alloys are reviewed in Part two, with chapters on such topics as hardening, precipitation processes and solute partitioning and clustering, as well as properties such as fracture resistance. Finally, Part three includes chapters on joining, laser sintering and other methods of processing aluminium, and its applications in particular areas of industry such as aerospace.With its distinguished editor and team of expert contributors, Fundamentals of aluminium metallurgy is a standard reference for researchers in metallurgy, as well as all those involved in the manufacture and use of aluminium products. - Provides a comprehensive overview of the production, properties and processing of aluminium, and its applications in manufacturing industries - Considers many issues of central importance in aluminium production and utilization considering quality issues and design for fatigue growth resistance - Metallurgical properties of aluminium and its alloys are further explored with particular reference to work hardening and applications of industrial alloys
Download or read book Physical Metallurgy of Direct Chill Casting of Aluminum Alloys written by Dmitry G. Eskin and published by CRC Press. This book was released on 2008-04-17 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulling together information previously scattered throughout numerous research articles into one detailed resource, this book connects the fundamentals of structure formation during solidification with the practically observed structure and defect patterns in billets and ingots. The author examines the formation of a structure, properties, and defects in the as-cast material in tight correlation to the physical phenomena involved in the solidification and the process parameters. Compiling recent results and data, the book discusses the fundamentals of solidification together with metallurgical and technological aspects of DC casting. It gives new insight and perspective into DC casting research.
Download or read book Eutectic Solidification Processing written by Roy Elliott and published by Elsevier. This book was released on 2013-10-22 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eutectic Solidification Processing: Crystalline and Glassy Alloys deals with solidification theory and its application to eutectic processing of crystalline and glassy alloys. The underlying theme is an analysis of the different paths taken by the liquid-solid transformation as the cooling rate increases and a description of the structure and properties of the solid formed, ranging from equilibrium to metastable phase formation in castings, to metallic glass formation in splat quenched ribbons. This text has seven chapters; the first of which describes the main characteristics of the liquid-solid transformation. The chapters that follow show how control over composition, trace impurities, heat flow and cooling rate, and nucleation and growth gives rise to a wide range of solidification structures. Models of the nucleation and growth of eutectic and primary phases are analyzed and used to explain how cast microstructures are formed. Aluminum casting alloys and all types of cast iron are discussed, along with primary phase formation, the dependence of the extent of segregation on solidification conditions, and the practice of segregation prevention during solidification. This book also describes the importance of fluid flow in producing macroscopic segregation in large ingots and considers ways of minimizing this defect. Finally, this book gives a brief account of the various types of metallic glasses, their fabrication, important properties, and potential applications. This book will be of interest to materials scientists and industrial materials engineers.
Download or read book The Effect of Rate of Solidification on Hot Tearing in Aluminum Alloys written by Jacob D. Gubbay and published by . This book was released on 1956 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Symposium on Solidification written by and published by . This book was released on 1961 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Light Metals 2020 written by Alan Tomsett and published by Springer Nature. This book was released on 2020-01-28 with total page 1385 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Light Metals symposia at the TMS Annual Meeting & Exhibition present the most recent developments, discoveries, and practices in primary aluminum science and technology. The annual Light Metals volume has become the definitive reference in the field of aluminum production and related light metal technologies. The 2020 collection includes papers from the following symposia: • Alumina and Bauxite• Aluminum Alloys, Processing and Characterization• Aluminum Reduction Technology• Cast Shop Technology• Cast Shop Technology: Recycling and Sustainability Joint Session• Electrode Technology for Aluminum Production
Download or read book Effect of Cooling Rate During Solidification of Aluminum Chromium Alloy written by Gautham Muthusamy and published by . This book was released on 2020 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Controlling the distribution of alloying elements in aluminum casting and designing new processing practices are supported by an enhanced understanding of the thermodynamics and kinetics of solidification at industrial scales. While the behavior of eutectic forming elements such as copper has received a lot of attention, the interactions of peritectic-forming elements such as chromium is understudied. We herein use a time-dependent nucleation model for the calculation of the incubation time of nuclei in the liquid. This characteristic time is computed at various temperatures, and the results are presented in the form of a time-temperature diagram. Liquid phase thermodynamics of dilute compositions in the aluminum-chromium system are experimentally informed using the electrochemical potential difference method. Thermodynamic data obtained from these investigations are used to inform physical properties of the aluminum-chromium melt. The aforementioned time-temperature diagrams are recalculated using experimental data and theoretical cooling rates for phase selection are calculated. Critical cooling rates calculated from the model are applied to industrially relevant practices such as DC casting and Twin roll casting.
Download or read book Frontiers of Manufacturing and Design Science IV written by Wen Pei Sung and published by Trans Tech Publications Ltd. This book was released on 2014-01-16 with total page 3300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collection of selected, peer reviewed papers from the 4th International Conference on Frontiers of Manufacturing and Design Science (ICFMD 2013), September 10-12, 2013, Hong Kong, China. Volume is indexed by Thomson Reuters CPCI-S (WoS). The 660 papers are grouped as follows: Chapter 1: Materials Engineering, Processing of Materials and Chemical Technologies; Chapter 2: Research and Design of Machinery, Equipment and Technological Processes in Mechanical Engineering; Chapter 3: Mechatronics, Control and Automation of Manufacturing Processes; Chapter 4: Information and Communication Technologies, Processing of Data and Signal; Chapter 5: Materials and Technologies in Construction; Chapter 6: Product Design and Engineering Management; Chapter 7: Urban Planning, Transportation and Environment
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book VII International Conference on Mechanochemistry and Mechanical Alloying INCOME 2011 Programme and the Book of Abstracts written by Uskokovic, Dragan P. and published by Materials Research Society of Serbia. This book was released on with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt:
