Electroslag Remelting and Plasma Arc Melting PDF Download

Author: National Research Council (U.S.). Committee on Electroslag Remelting and Plasma Arc Melting
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 228

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Author: B.I. Medovar
Publisher: Springer Science & Business Media
ISBN: 1461230187
Category : Science
Languages : en
Pages : 285

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Dr. Boris Medovar, a member of the Soviet Academy of Sciences, is a promi nent member of the E.O. Paton Electric Welding Institute in Kiev, one of the pre-eminent institutes of the USSR. The Paton Institute, internationally famous for its entrepreneurial efforts in electrical welding processes, is also famous for its application of electrically based processes in melting and remelting of high alloy and high-temperature materials. These include the ESR (electroslag re melting) process, the ESC (electroslag casting) process, skull remelting based on electron-beam processes, plasma arc processes, and electric arc processes. Along with the ESR process for ingot production is the commercial plasma arc remelt process for specialty steels, particularly where high nitrogen contents may be desired, as in austenitic stainless steels. Major industrial centers are now scattered throughout the USSR and are a major factor in high-alloy, high strength, low- and high-temperature materials. The ESR process was developed in response to the Western development of the VAR (vacuum arc remelting) process for producing very highly alloyed materials during the growth period of the jet engine age. The V AR and ESR processes utilize different purification and refinement processes that are extremely critical in very highly, complexly alloyed superalloys and high-speed tool steels. In water-cooled remelt systems, they also achieve relatively rapid (directional) solidification, minimizing segregation and coarse phase separation of undesir able impurity elements or elements that tend to form coarse brittle phases.

Author: Kuang-Oscar Yu
Publisher: CRC Press
ISBN: 9780824788810
Category : Science
Languages : en
Pages : 724

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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.

Author: National Academy of Sciences (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 420

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Author:
Publisher:
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Category :
Languages : en
Pages : 202

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Author:
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Category : Aeronautics
Languages : en
Pages : 856

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Author: Robert Noyes
Publisher: Cambridge University Press
ISBN: 0080946194
Category : Political Science
Languages : en
Pages : 473

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One of the largest, most complicated and expensive environmental problems in the United States is the cleanup of nuclear wastes. The US Department of Energy (DOE) has approximately 4,000 contaminated sites covering tens of thousands of acres and replete with contaminated hazardous or radioactive waste, soil, or structures. In addition to high-level waste, it has more than 250,000 cubic meters of transuranic waste and millions of cubic meters of low-level radio-active waste. In addition, DOE is responsible for thousands of facilities awaiting decontamination, decommissioning, and dismantling. DOE and its predecessors have been involved in the management of radioactive wastes since 1943, when such wastes were first generated in significant quantities as by-products of nuclear weapons production. Waste connected with DOE's nuclear weapons complex has been accumulating as a result of various operations spanning over five decades. The cost estimates for nuclear waste cleanup in the United States have been rapidly rising. It has recently been estimated to be in a range from $200 to $350 billion. Costs could vary considerably based on future philosophies as to whether to isolate certain sites (the ""iron fence"" philosophy), or clean them up to a pristine condition (the ""greenfields"" philosophy). Funding will also be based on Congressional action that may reduce environmental cleanup, based on budget considerations.

Author: B. I. Medovar
Publisher: CRC Press
ISBN: 9783718649761
Category : Science
Languages : en
Pages : 76

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Author: François Cardarelli
Publisher: Springer
ISBN: 3319389254
Category : Technology & Engineering
Languages : en
Pages : 2302

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Book Description
The unique and practical Materials Handbook (third edition) provides quick and easy access to the physical and chemical properties of very many classes of materials. Its coverage has been expanded to include whole new families of materials such as minor metals, ferroalloys, nuclear materials, food, natural oils, fats, resins, and waxes. Many of the existing families—notably the metals, gases, liquids, minerals, rocks, soils, polymers, and fuels—are broadened and refined with new material and up-to-date information. Several of the larger tables of data are expanded and new ones added. Particular emphasis is placed on the properties of common industrial materials in each class. After a chapter introducing some general properties of materials, each of twenty-four classes of materials receives attention in its own chapter. The health and safety issues connected with the use and handling of industrial materials are included. Detailed appendices provide additional information on subjects as diverse as crystallography, spectroscopy, thermochemical data, analytical chemistry, corrosion resistance, and economic data for industrial and hazardous materials. Specific further reading sections and a general bibliography round out this comprehensive guide. The index and tabular format of the book makes light work of extracting what the reader needs to know from the wealth of factual information within these covers. Dr. François Cardarelli has spent many years compiling and editing materials data. His professional expertise and experience combine to make this handbook an indispensable reference tool for scientists and engineers working in numerous fields ranging from chemical to nuclear engineering. Particular emphasis is placed on the properties of common industrial materials in each class. After a chapter introducing some general properties of materials, materials are classified as follows. ferrous metals and their alloys; ferroalloys; common nonferrous metals; less common metals; minor metals; semiconductors and superconductors; magnetic materials; insulators and dielectrics; miscellaneous electrical materials; ceramics, refractories and glasses; polymers and elastomers; minerals, ores and gemstones; rocks and meteorites; soils and fertilizers; construction materials; timbers and woods; fuels, propellants and explosives; composite materials; gases; liquids; food, oils, resin and waxes; nuclear materials. food materials

Author: Christina Meskers
Publisher: Elsevier
ISBN: 0323860133
Category : Technology & Engineering
Languages : en
Pages : 758

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Handbook of Recycling, Second Edition, Winner of the International Solid Waste Association's 2014 Publication Award, is an authoritative review of the current state of recycling, reuse and reclamation processes commonly implemented today and how they interact with one another. Fully updated to cover recent developments in the field, this second edition has also been restructured to cover General Aspects of Recycling, Applications, Technology, Recovery and Collection, Economics, Governance and Policy. Several new chapters on global recycled material flows, sludges, reinforced plastics, and landfill mining have been added. It concludes with a review of the policy and economic implications, including the impact of recycling on energy use, sustainable development, and the environment.This book is a crucial aid to students and researchers in a range of disciplines, from materials and environmental science to public policy studies. - Chapters authored by key experts from academia, industry, and the policymaking community - Provides a thorough analysis from theory to practice to deeply understand the fundamentals, dynamics, complex interactions, opportunities, and challenges of recycling, within the larger picture of a circular system - Describes the state of the art and lessons learned, to understand future challenges in recycling of a wide variety of products, materials, and waste flows - Introduces the tools and practices to understand the opportunities and limitations of recycling in the context of a circular economy