The production-costs of formed workpieces are in an increasing extent fixed through the costs for designing and manufacturing the tools. Nowadays, it is possi b 1 e to reduce these redundant tool-costs by app lyi ng modern numeri ca 1 simulation techniques such as the finite element type procedures. In thi s context, the basic ojecti ve of the workshop SUtoP (~imul ation of !:!etal F~rming ~rocesses by the Finite Element Method) was to determine and - especially - to discuss the level of finite-element-simulations of metal-forming processes with regard to technological utilization. On this purpose, eight presentations have been selected to focus the discussions onto the prime aspects such as: - technological aspects (bulk metal forming versus sheet metal forming), - constitutive laws (rigid-plastic versus elastic-plastic versus visko-pl- tic material laws), - coupled analysis (thermo-mechanical coupling), - kinematical description (Eulerian versus Lagrangian formulations, co-ro- tional formulations etc.), - numerical problems (incompressibility, integration of constitutive eq- tions, iterative and incremental schemas, etc.) , as well as - contact problems (friction, heat-transfer, etc.). In order to promote discussions, the audience of the workshop was limited to 50 participants. Due to this fact, we had to refuse unfortunately many app 1 i cat ions. However, we hope that these proceedi ngs - whi ch also inc 1 ude the discussions in an almost complete extent - will be a compensation for those who could not attend the workshop SIMOP-I.

Corrosion may be defined as an unintentional attack on a material through reaction with a surrounding medium. The term can refer to a process or to the damage caused by such a process. According to this general definition, materials other than metals, such as ceramics, plastics or concrete, may also be subject to corrosion (or corrode). When no particular reference is made to the material, however, it is normally understood that a metal is being attacked. It is entirely in this limited sense that the term is used in this book. There are good reasons for treating the corrosion of metals separately, apart from deterioration or decay of other materials. Since metals have a high electric conductivity, their corrosion is usually of an electrochemical nature. The chemical deterioration of electrically non-conducting ma terials, such as plastics and ceramics, is governed by other physico-chemical principles. It is necessary to devote more attention to metallic corrosion nowadays than earlier, due to 1. An increased use of metals within all fields of technology. 2. The use for special applications, e.g. within the atomic energy field, of rare and expensive metals, whose preservation requires particular precautions. 3. A more corrosive environment due to the increasing pollution of air and water. 4. The use of metallic constructions of more slender dimensions which do not tolerate corrosive attacks to the same extent as did the heavy constructions used in the old days."

Metal contamination in the environment is a persisting global issue. The metal reservoirs in the earth have declined due to society's needs and due to uncontrolled mining activities. Therefore, the idea to recover metals from waste streams has emerged. In this thesis, cost competitive technologies such as adsorption using agro-wastes and precipitation using an inverse fluidized bed (IFB) reactor were investigated, with special emphasis on the recovery of base metals. Groundnut shell showed good potential for metal (Cu, Pb and Zn) removal. From artificial neural network modeling, the performance of the sulfate reducing bacteria (SRB) was found to be strongly pH dependent; the removal efficiency of Cu and Zn in the IFB at pH 5.0 was >97%. Electronic waste is a good candidate as secondary metal resource. The recovery of Cu from computer printed circuited boards (PCBs) using biogenic sulfide precipitation was investigated as well. Using this technology, Cu could be recovered at ~0.48 g Cu/g PCBs.

Die Pulvermetallurgie bietet fA1/4r beliebige Komponenten Verbundtechniken und -werkstoffe an, die der Schmelzmetallurgie versagt sind. Unter diesen Gesichtspunkten werden die wichtigsten Verfahren der Gewinnung, Aufbereitung und Charakterisierung der Pulver, deren Formgebung zu Halbzeugen und Konstruktionsteilen behandelt. Die Technologien und Anlagen des Sinterns - der zentralen Technologie der Pulvermetallurgie - werden in der Neuauflage ausfA1/4hrlich behandelt. Einen ebenso breiten Raum nimmt die Darstellung der gesinterten Formteile auf Eisen- und Nichteisenbasis, aus hoch- und hAchstfesten Legierungen, von Reib- und Gleitelementen, porAsen Materialien, Kontakt- und Magnetwerkstoffen, hochschmelzenden Metallen, Hartmetallen und anderen Metall-Nichtmetall-Verbundwerkstoffen ein. A-konomische Vorteile, wie die prozessstufenArmere und weitgehend abfallfreie Fertigung von maAgenauen Massenformteilen, die Einstellung nichtkonservativer WerkstoffzustAnde und der entsprechenden Materialeigenschaftsbilder, werden in diesem Werk deutlich.

The first of many important works featured in CRC Press' Metals and Alloys Encyclopedia Collection, the Encyclopedia of Iron, Steel, and Their Alloys covers all the fundamental, theoretical, and application-related aspects of the metallurgical science, engineering, and technology of iron, steel, and their alloys. This Five-Volume Set addresses topics such as extractive metallurgy, powder metallurgy and processing, physical metallurgy, production engineering, corrosion engineering, thermal processing, metalworking, welding, iron- and steelmaking, heat treating, rolling, casting, hot and cold forming, surface finishing and coating, crystallography, metallography, computational metallurgy, metal-matrix composites, intermetallics, nano- and micro-structured metals and alloys, nano- and micro-alloying effects, special steels, and mining. A valuable reference for materials scientists and engineers, chemists, manufacturers, miners, researchers, and students, this must-have encyclopedia: Provides extensive coverage of properties and recommended practices Includes a wealth of helpful charts, nomograms, and figures Contains cross referencing for quick and easy search Each entry is written by a subject-matter expert and reviewed by an international panel of renowned researchers from academia, government, and industry. Also Available Online This Taylor & Francis encyclopedia is also available through online subscription, offering a variety of extra benefits for researchers, students, and librarians, including: Citation tracking and alerts Active reference linking Saved searches and marked lists HTML and PDF format options Contact Taylor and Francis for more information or to inquire about subscription options and print/online combination packages. US: (Tel) 1.888.318.2367; (E-mail) [email protected] International: (Tel) +44 (0) 20 7017 6062; (E-mail) [email protected]

Metal contamination in the environment is a persisting global issue. The metal reservoirs in the earth have declined due to society's needs and due to uncontrolled mining activities. Therefore, the idea to recover metals from waste streams has emerged. In this thesis, cost competitive technologies such as adsorption using agro-wastes and precipitation using an inverse fluidized bed (IFB) reactor were investigated, with special emphasis on the recovery of base metals. Groundnut shell showed good potential for metal (Cu, Pb and Zn) removal. From artificial neural network modeling, the performance of the sulfate reducing bacteria (SRB) was found to be strongly pH dependent; the removal efficiency of Cu and Zn in the IFB at pH 5.0 was >97%. Electronic waste is a good candidate as secondary metal resource. The recovery of Cu from computer printed circuited boards (PCBs) using biogenic sulfide precipitation was investigated as well. Using this technology, Cu could be recovered at ~0.48 g Cu/g PCBs.

Laser-Based Additive Manufacturing (LBAM) technologies, hailed by some as the "third industrial revolution," can increase product performance, while reducing time-to-market and manufacturing costs. This book is a comprehensive look at new technologies in LBAM of metal parts, covering topics such as mechanical properties, microstructural features, thermal behavior and solidification, process parameters, optimization and control, uncertainty quantification, and more. The book is aimed at addressing the needs of a diverse cross-section of engineers and professionals.

This open access book presents the novel concept of plaston, which accounts for the high ductility or large plastic deformation of emerging high-performance structural materials, including bulk nanostructured metals, hetero-nanostructured materials, metallic glasses, intermetallics, and ceramics.The book describes simulation results of the collective atomic motion associated with plaston, by computational tools such as first-principle methods with predictive performance and large-scale atom-dynamics calculations. Multi-scale analyses with state-of-the art analytical tools nano/micro pillar deformation and nano-indentation experiments are also described. Finally, through collaborative efforts of experimental and computational work, examples of rational design and development of new structural materials are given, based on accurate understanding of deformation and fracture phenomena.This publication provides a valuable contribution to the field of structural materials research.

This open access book presents the novel concept of plaston, which accounts for the high ductility or large plastic deformation of emerging high-performance structural materials, including bulk nanostructured metals, hetero-nanostructured materials, metallic glasses, intermetallics, and ceramics.The book describes simulation results of the collective atomic motion associated with plaston, by computational tools such as first-principle methods with predictive performance and large-scale atom-dynamics calculations. Multi-scale analyses with state-of-the art analytical tools nano/micro pillar deformation and nano-indentation experiments are also described. Finally, through collaborative efforts of experimental and computational work, examples of rational design and development of new structural materials are given, based on accurate understanding of deformation and fracture phenomena.This publication provides a valuable contribution to the field of structural materials research.

This revised and expanded Third Edition contains 21 chapters summarizing the latest thinking on various technologies relating to metalworking fluid development, laboratory evaluation, metallurgy, industrial application, fluid maintenance, recycling, waste treatment, health, government regulations, and cost/benefit analysis. All chapters of this uniquely comprehensive reference have been thoroughly updated, and two new chapters on rolling of metal flat sheets and nanoparticle lubricants in metalworking have been added. This must-have book for anyone in the field of metalworking includes new information on chemistries of the most common types of metalworking fluids, advances in recycling of metalworking fluids, and the latest government regulations, including EPA standards, the Globally Harmonized System being implemented for safety data sheets, and REACH legislation in Europe.

The application of computer-aided design and manufacturing techniques is becoming essential in modern metal-forming technology. Thus process modelling for the determination of deformation mechanics has been a major concern in research. In light of these developments, the finite element method - a technique by which an object is decomposed into pieces and treated as isolated, interacting sections - has steadily assumed increased importance. This volume addresses advances in modern metal-forming technology, computer-aided design and engineering, and the finite element method.

This book, intended for advanced graduate students of metallurgy, explains what happens in the critical period between extractive metallurgy and solidification and subsequent processing. An important point the book stresses is that the principles are the same in the treatment of various different metals. Someone concerned with the purification of one metal may learn from results and experiences gained on other metals and alloys. The specifics of metals such as iron and steel, aluminium, and copper are discussed in examples and in problems at the end of each chapter. The book is self-contained and covers the basic thermodynamics and fluid mechanics required.

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 2017 collection includes papers from the following symposia:Alumina and BauxiteAluminum Alloys, Processing, and CharacterizationAluminum Reduction TechnologyCast Shop TechnologyCast Shop Technology: Recycling and Sustainability Joint SessionElectrode TechnologyThe Science of Melt Refining: An LMD Symposium in Honor of Christian Simensen and Thorvald Abel Engh

This book focuses on agglomeration, or the size enlargement process, of iron ores. This process sits at the interface of mineral processing and extractive metallurgy. The book begins with a discussion of raw materials preparation and the beneficiation process. It then describes fundamental principles of the sintering and pelletization processes, including formation of green mix through granulation and green balls as well as chemical reactions during sintering. Finally, it offers a brief description of iron making processes and correlations related to the agglomerates: quality parameters and BF productivity and coke rate.

Superalloys form a class of the structural materials for high-temperature applications. Nickel superalloys are extensively used in the high-temperature components of gas turbines due to their excellent creep, fatigue, and corrosion resistance at elevated temperatures. These materials are considered paramagnetic in the range of working temperatures. This book presents the features of the ternary phase diagrams Ni-Al-X (X = {Co, Fe, Nb, Ti, Cr}), effects of the alloying on the long-range order and mechanical properties of the Ni3 Al-based alloys. Description of the strain-induced ferromagnetism in the Ni3Al-based alloys and magnetic control of the failure of gas turbine blades are also included. A separate section is devoted to the analysis of the vibration process and strength change in the single-crystal gas turbine blades. This book includes the review of the new intermetallic cobalt superalloys. The structure, crystal lattice parameters, orientation relationships between phases, mechanical and magnetic properties of the Co3(Al,W)-based alloys are described. Non-destructive magnetic point control of the martensite content in low-magnetic austenitic alloys is a new method for detection of the local sites with internal stresses. This method is useful for the detection of the residual stress in the critical parts of industrial products. This book may be useful for specialists in material science, first-year postgraduate students taking a class in material science and engineering, and engineers developing new alloys for the gas turbine technology.

This 2 volume set is an up-to-date reference based on 138 proceedings papers from the October 2002, Mineral Processing Plant Design, Control and Practice Conference in Vancouver, British Columbia. It was the first conference to comprehensively address plant design and operational issues in more than a decade.

This indispensable resource covers all aspects of plant design--from concept to pilot plant to full-scale production. Valuable guidance is provided on overall project management, and on the design, optimization, and control of all related processes.

This will become the new standard text for university instruction and a valuable guidebook for operators considering new construction, renovations, or expansions. Most of all, it's a practical, quick reference for engineers, consultants, suppliers, manufacturers, or anyone involved in the design or operation of a minerals processing plant.

Waste electrical and electronic equipment (WEEE) generation is a global problem. Despite the growing awareness and deterring legislation, most of the WEEE is disposed improperly, i.e. landfilled or otherwise shipped overseas, and treated in sub-standard conditions. Informal recycling of WEEE has catastrophic effects on humans and the environment. WEEE contains considerable quantities of valuable metals such as base metals, precious metals and rare earth elements (REE). Metal recovery from WEEE is conventionally carried out by pyrometallurgical and hydrometallurgical methods. In this PhD research, novel metal recovery technologies from WEEE are investigated. Using acidophilic and cyanide-generating bacteria, copper and gold were removed from crushed electronic waste with removal efficiencies of 98.4 and 44.0%, respectively. The leached metals in solution were recovered using sulfidic precipitation and electrowinning separation techniques. Finally, a techno-economic assessment of the technology was studied. This research addresses the knowledge gap on two metal extraction approaches, namely chemical and biological, from a secondary source of metals. The essential parameters of the selective metal recovery processes, scale-up potential, techno-economic and sustainability assessment have been studied.

Die "Klassiker der Technik" sind unveranderte Neuauflagen traditionsreicher ingenieurwissenschaftlicher Werke. Wegen ihrer didaktischen Einzigartigkeit und der Zeitlosigkeit ihrer Inhalte gehoeren sie zur Standardliteratur. Hintergrunde vieler computergestutzter Verfahren erschliessen sich erst durch das Studium dieses klassischen Wissens. In dem Klassiker zur Korrosion der Metalle wird der Stoff systematisch und didaktisch durchdacht dargestellt. Dabei beschrankt sich der Autor auf das Wesentliche und erlautert dennoch eine Fulle von Einzelfragen.