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Author: John H. Stang Publisher: ISBN: Category : Alkali metals Languages : en Pages : 124
Book Description
This report presents the highlights of what has been ascertained about the interactions of liquid and vapor sodium, NaK potassium, lithium, and cesium with solid materials of potential use in practical liquid-metal systems. Data for inclusion were selected by the authors on the basis of their practical utility to designers and research workers. There has been an accelerating interest in alkali metals as (1) coolants for fast-breeder nuclear reactors, (2) coolants in space power plants, (3) Rankine-cycle working fluids in high- temperature nuclear reactors, (4) propellants in ion-propulsion engines, (5) seeding materials in magnetohydrodynamic generators, (6) space-charge dissipating media in thermionic generators, and (7) high-temperature hydraulic fluids. Prominent among the liquid-metals research efforts are studies directed toward finding the best containment material for a given alkali under a given set of operating conditions.
Author: John H. Stang Publisher: ISBN: Category : Alkali metals Languages : en Pages : 124
Book Description
This report presents the highlights of what has been ascertained about the interactions of liquid and vapor sodium, NaK potassium, lithium, and cesium with solid materials of potential use in practical liquid-metal systems. Data for inclusion were selected by the authors on the basis of their practical utility to designers and research workers. There has been an accelerating interest in alkali metals as (1) coolants for fast-breeder nuclear reactors, (2) coolants in space power plants, (3) Rankine-cycle working fluids in high- temperature nuclear reactors, (4) propellants in ion-propulsion engines, (5) seeding materials in magnetohydrodynamic generators, (6) space-charge dissipating media in thermionic generators, and (7) high-temperature hydraulic fluids. Prominent among the liquid-metals research efforts are studies directed toward finding the best containment material for a given alkali under a given set of operating conditions.
Author: J. Prock (Jr.) Publisher: ISBN: Category : Cobalt-nickel alloys Languages : en Pages : 64
Book Description
Soviet nickel-base and cobalt-base alloys for high-temperature operation are described. Wrought and cast turbine blading alloys are included, as well as oxidation-resistant sheet alloys. Mechanical and physical properties of each alloy are assembled, and a detailed list of references is presented. Where possible, the specific applications are noted. It was concluded that the Soviets have made significant contributions to superalloy development, having successfully circumvented a shortage of cobalt and molybdenum. (Author).
Author: H. D. Hanes Publisher: ISBN: Category : Beryllium Languages : en Pages : 56
Book Description
This report summarizes the recent work done to more fully understand the physical metallurgy of beryllium. A review of work on purification of beryllium, which has yielded high-quality single crystals, was made. The basic deformation properties of beryllium have thus been more clearly defined. The effects of certain alloying elements and impurities are also discussed. Deformation modes in polycrystalline beryllium are discussed based on the results of studies of single crystals. The texture developed in polycrystalline beryllium by fabrication and resulting effects on mechanical properties are dealt with, as well as fracture modes in single-crystal and polycrystalline beryllium. Bend-plane splitting is the method suggested for initiation of fracture in beryllium. Some effects of the distribution of impurities as a result of thermal treatment on the mechanical properties are cited. Since grain size is an important factor in determining properties, recrystallization and grain-growth phenomena are covered. The physical-metallurgical phenomena which contribute to the properties and fabricability of commercial products are discussed. (Author).
Author: Stanley W. Porembka Publisher: ISBN: Category : Beryllium Languages : en Pages : 32
Book Description
This report discusses the powder metallurgy of beryllium from the preparation of powders through the production from the powders of solid products. Various methods of powder compaction are presented including die pressing, isopressing, slip casting, vibration packing and explosive compaction. Sintering, and methods of elevated temperature consolidation, including vacuum hot pressing, hot isostatic pressing, forging, extrusion, and plasma spraying, are discussed. The final sections of the report cover properties of powder beryllium products, applications of beryllium prepared by powder metallurgy and current trends in the powder metallurgy of beryllium. (Author).
Author: V. D. Linse Publisher: ISBN: Category : Explosives Languages : en Pages : 38
Book Description
Describes basic mechanics of the process, practices of those in the field, metal combinations and configurations that have been bonded, and applications.
Author: Charles Stein Publisher: Elsevier ISBN: 0323141625 Category : Technology & Engineering Languages : en Pages : 928
Book Description
Critical Materials Problems in Energy Production discusses the most challenging of the materials problems in the areas of production, distribution, and energy storage. This book is a result of the Distinguished Lecture Series on “Critical Materials Problems in Energy Production sponsored by the Joint Center for Materials Science in New Mexico. This text is organized into eight sections encompassing 29 chapters that cover topics on nuclear power, materials for high-temperature applications, solar energy, direct solar conversion, coal and other fossil fuels, superconducting materials, and energy storage devices. After a brief introduction to overall perspective of the energy program, the book goes on discussing the problems encountered in nuclear power generation, including the complication of their interdependence, the severity of the service parameters, and the need for safety and reliability. Section II examines the progress made in the development of high-temperature materials suitable for use in magnetohydrodynamic converts and advanced turbines and jet engines. The subsequent two sections address the thermal/optical requirements for solar utilization devices and the limitations encountered in solar cell materials. Section V deals with the metallurgical problems emanating from the materials used for confinement and the flow of energy in steam generating systems. This section also describes the close dependence of catalytic performance on technological innovations in the field of materials science. Section VI discusses the basics of superconductivity phenomena. Section VII deals with the materials problems related to the development of more efficient batteries. Discussions on new electrode materials, solid electrolytes, and high-temperature battery systems are included in this section. The concluding section provides supplemental texts containing references and readings.
Author: F. W. Boulger Publisher: ISBN: Category : Deformations (Mechanics) Languages : en Pages : 174
Book Description
As part of the Metalworking Processes and Equipment Program, information was collected on deformation characteristics of metals and their effect on processing operations. The report presents the information collected from technical engineering reports on Government contracts and from general engineering and metallurgical publications. The objective is to help the nonspecialist in recognizing the implications of scientific findings and in applying them in specific operations. This report contains a series of articles covering the following subjects: Ductile Fracture; Application of High Pressure to the Forming of Brittle Metals; Superplasticity; Lubrication in Metal-Deformation Processes; Swaging; Adiabatic Conditions in Deformation Processing; Residual Stresses produced by Deformation. These subjects are treated in two ways: (1) generalized discussions of common processes point out why specific variables must be modified in order to deform certain types of metals satisfactorily; and (2) data on the more difficult-to-form metals are used to illustrate the principles, limitations, and effects of the processes. (Author).
Author: F. H. Haynie Publisher: ISBN: Category : Aluminum alloys Languages : en Pages : 52
Book Description
This report deals with the stress-corrosion cracking of aluminum alloys, and it represents an effort by DMIC to expand on the information contained in DMIC Memorandum 202, 'Stress-Corrosion Cracking of Aluminum Alloys', dated February 15, 1965. DMIC Report 228 begins by presenting a comprehensive definition of stress-corrosion cracking. This is followed by sections dealing with (1) the historical development and growth in awareness of the problem, (2) the mechanisms involved, and (3) the theory of stress-corrosion cracking. A section on experimental techniques is presented. These techniques include test methods used to determine the susceptibility of alloys to stress-corrosion cracking, as well as more refined methods of studying the fundamental mechanisms of the problem. Different evaluation methods, applicable to obtaining the different objectives of stress-corrosion testing, are also presented. All of the foregoing serve as background to the sections on stress-corrosion-cracking behavior of aluminum alloys and preventive measures. (Author).
Author: John H. Stang
Author: John H. Stang
Author: J. H. Stang
Author: 
Author: J. Prock (Jr.)
Author: H. D. Hanes
Author: Stanley W. Porembka
Author: V. D. Linse
Author: Charles Stein
Author: F. W. Boulger
Author: F. H. Haynie