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The proceedings of this symposium from the 1999 TMS Annual Meeting & Exhibition examine the effects of long-term thermal exposure and long-term service conditions on the microstructure and properties of high-temperature structural materials. A significant number of paper address nickel-based superalloys, elevated-temperature stability of intermetallic alloys, refractory metal alloys, composites, and titanium alloys. Also included are discussions on determining the degree and mechanism of property degradation, correlating laboratory exposure with actual service life, and analyzing properties and methods of component/property refurbishment.
High Temperature Oxidation and Corrosion of Metals, Second Edition, provides a high level understanding of the fundamental mechanisms of high temperature alloy oxidation. It uses this understanding to develop methods of predicting oxidation rates and the way they change with temperature, gas chemistry, and alloy composition. The book focuses on the design and selection of alloy compositions which provide optimal resistance to attack by corrosive gases, providing a rigorous treatment of the thermodynamics and kinetics underlying high temperature alloy corrosion. In addition, it emphasizes quantitative calculations for predicting reaction rates and the effects of temperature, oxidant activities, and alloy compositions. Users will find this book to be an indispensable source of information for researchers and students who are dealing with high temperature corrosion. - Emphasizes quantitative calculations for predicting reaction rates and the effects of temperature, oxidant activities, and alloy compositions - Uses phase diagrams and diffusion paths to analyze and interpret scale structures and internal precipitation distributions - Presents a detailed examination of corrosion in industrial gases (water vapor effects, carburization and metal dusting, sulphidation) - Contains numerous micrographs, phase diagrams, and tabulations of relevant thermodynamic and kinetic data - Combines physical chemistry and materials science methodologies - Provides two completely new chapters (chapters 11 and 13), and numerous other updates throughout the text
Superalloys, Supercomposites and Superceramics reviews the state of superalloy technology and some of the more salient aspects of alternative high temperature systems such as superceramics and supercomposites. Superalloy topics range from resource availability to advanced processing such as VIM, VAR, and VADAR, along with investment casting and single crystal growth, new superplastic forming techniques and powder metallurgy, structure property relationships, strengthening mechanisms, oxidation, hydrogen embrittlement, and phase predictions. This book is comprised of 22 chapters that explore key issues of high temperature materials in a synergistic manner. The first chapter reflects on the growth of the superalloy industry and its technology over the past 40 years. The discussion then turns to some of the trends in superalloy development, focusing on what is understood to be meant by the term strategic materials and the current status of resources and reserves in the United States. Particular attention is given to the supply sources and availability of strategic materials. The results achieved from the research program undertaken by NASA Lewis Research Center named Conservation Of Strategic Aerospace Materials (COSAM) are also presented. The chapters that follow explore alternative high temperature systems such as intermetallics, fiber reinforced superalloys, and the processing and high temperature properties of ceramics and carbon-carbon composites. This book will be a valuable resource for professionals and graduate students interested in learning about superalloys, supercomposites, and superceramics.
This collection explores all aspects of metallurgical processing, materials behavior, and microstructural performance for the distinct class of 718-type superalloys and derivatives. Technical topics focus on alloy and process development, production, product applications, trends, and the development of advanced modeling tools. New developments in R&D, new processing methods, 3D printing, and other nontraditional applications also are covered.
This volume organizes information by alloy so that pertinent data can be found easily. Physical and mechanical properties from room temperature to temperatures in excess of 100 C are shown graphically or in tabular form. All data is thoroughly referenced. Now high-temperature property data can be found in one complete reference! Over 200 alloys are organized by AISI number into 11 major sections: Irons, Carbon Steels, Alloy Steels, ASTM Steels, Low Alloy Constructional Steels, Ultra High Strength Steels, Tool Steels, Maraging Steels, Wrought Stainless Steels, Heat Resistant Casting Alloys, and Wrought Iron-Nickel Alloys and Iron-Nickel Superalloys. Each alloy record lists the designation, specifications, UNS number composition product forms and a comment on the high-temperature properties and applications. Data is then given for physical properties such as density, specific heat, thermal conductivity, thermal expansion, electrical conductivity. Poisons ratio, moduli of elasticity and rigidity, etc. Mechanical properties follow, and include tensile properties, shearing and bearing properties, impact properties, creep, stress rupture and stress relaxation, and fatigue properties.The last part of the alloy record gives other effects of temperature, such as hot hardness, corrosion, and growth.
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.