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The Physics of Welding, Second Edition covers advances in welding physics. The book describes symbols, units and dimensions; the physical properties of fluids at elevated temperatures; and electricity and magnetism. The text also discusses fluid and magneto fluid dynamics; the electric arc; and the electric arc in welding. Metal transfer and mass flow in the weld pool, as well as high power density welding are also tackled. Students interested in welding physics will find the book useful.
The book describes the method of remelting consumable electrodes with an electric are burning between the surface of a liquid slag bath and a consumable electrode in a water-cooled copper mould. The method combines the possibilities of treatment of liquid metal with the electric arc in the gas atmosphere and the liquid slag and the advantages of plasma-arc and electro slag remelting. The technological possibilities, design features of melting systems and results of experimental and industrial melting trials of steels and alloys are described. In addition to remelting structural steels, special attention is given to the possibility of alloying the metal with nitrogen from the gas phase, without using expensive nitrogen-bearing nonmetallic compounds, e.g. silicon nitride. It is shown that arc slag remelting can also be used efficiently in producing ingots of titanium and its alloys. The results obtained in this method are compared with electro slag remelting and plasma arc remelting. Data on energy consumption and metal quality are also presented.
The papers in this two volume set provide the latest information on research and development in the field of high Tc-materials. Special emphasis is placed on methods of preparation and microstructural characterization for both thin films and single crystals. Considerable attention is also paid to the potential applications of thin films and bulk materials. The following topics are covered in detail: New superconductors; Relations between structure and/or substitution and superconductivity in ternary Cu-oxides; Single crystals, microstructure; Thin films, preparation and properties; Technical applications.
Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing. house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 25 (thesis year 1980) a total of 10,308 theses titles from 27 Canadian and 214 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. While Volume 25 reports theses submitted in 1980, on occasion, certain universities do report theses submitted in previous years but not reported at the time.