Author: D. D. CubicciottiPublisher:
ISBN:
Category : High temperature chemistry
Languages : en
Pages : 24
Book Description
High Temperature Equilibria in Metal
Author: D. D. CubicciottiPublisher:
ISBN:
Category : High temperature chemistry
Languages : en
Pages : 24
Book Description
High Temperature Oxidation and Corrosion of Metals
Author: David John YoungPublisher: Elsevier
ISBN: 008044587X
Category : Business & Economics
Languages : en
Pages : 593
Book Description
The book is concerned with understanding 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 focus is on designing (or selecting) alloy compositions which provide optimal resistance to attack by corrosive gases. . Emphasises quantitative calculations for predicting reaction rates and the effects of temperature, oxidant activities and alloy compositions. . Uses phase diagrams and diffusion paths to analyse and interpret scale structures and internal precipitation distributions . Provides a detailed examination of corrosion in industrial gases (water vapour effects, carburisation and metal dusting, sulphidation) . Text is well supported by numerous micrographs, phase diagrams and tabulations of relevant thermodynamic and kinetic data . Combines physical chemistry and materials science methodologies.
High Temperature Corrosion
Author: César A. C. SequeiraPublisher: John Wiley & Sons
ISBN: 0470119888
Category : Science
Languages : en
Pages : 656
Book Description
Reviews the science and engineering of high-temperature corrosion and provides guidelines for selecting the best materials for an array of system processes High-temperature corrosion (HTC) is a widespread problem in an array of industries, including power generation, aerospace, automotive, and mineral and chemical processing, to name a few. This book provides engineers, physicists, and chemists with a balanced presentation of all relevant basic science and engineering aspects of high-temperature corrosion. It covers most HTC types, including oxidation, sulfidation, nitridation, molten salts, fuel-ash corrosion, H2S/H2 corrosion, molten fluoride/HF corrosion, and carburization. It also provides corrosion data essential for making the appropriate choices of candidate materials for high-temperature service in process conditions. A form of corrosion that does not require the presence of liquids, high-temperature corrosion occurs due to the interaction at high temperatures of gases, liquids, or solids with materials. HTC is a subject is of increasing importance in many areas of science and engineering, and students, researchers, and engineers need to be aware of the nature of the processes that occur in high-temperature materials and equipment in common use today, especially in the chemical, gas, petroleum, electric power, metal manufacturing, automotive, and nuclear industries. Provides engineers and scientists with the essential data needed to make the most informed decisions on materials selection Includes up-to-date information accompanied by more than 1,000 references, 80% of which from within the past fifteen years Includes details on systems of critical engineering importance, especially the corrosion induced by low-energy radionuclides Includes practical guidelines for testing and research in HTC, along with both the European and International Standards for high-temperature corrosion engineering Offering balanced, in-depth coverage of the fundamental science behind and engineering of HTC, High Temperature Corrosion: Fundamentals and Engineering is a valuable resource for academic researchers, students, and professionals in the material sciences, solid state physics, solid state chemistry, electrochemistry, metallurgy, and mechanical, chemical, and structural engineers.
The Equilibrium Thermodynamic Properties of a High-temperature Nitrogen-alkali-metal Vapor Mixture
Author: Stephen K. ParkPublisher:
ISBN:
Category : Equilibrium
Languages : en
Pages : 76
Book Description
Research Study to Determine the Phase Equilibrium Relations of Selected Metal Carbides at High Temperatures
Author: R. V. SaraResearch Study to Determine the Phase Equilibrium Relations of Selected Metal Carbides at High Temperatures
Author: R. T. DOLLOFFPublisher:
ISBN:
Category :
Languages : en
Pages : 22
Book Description
The work reported is the result of an investigation of phase equilibria in the binary system, tungsten-carbon. A tentative phase diagram is presented which differs significantly from the one proposed by Sykes in 1930 and which is generally accepted today. The data were obtained by high-temperature differential thermal analysis and classical quenching procedures, both supplemented by metallographic, x-ray, and chemical techniques. Results for the tungsten-carbon binary system indicate a eutectic between W and W2C at 2735 C, and a eutectic between W5C3 and C at 2765 C. The W2C lattice accommodates 72 and 74 atomic per cent W at 2475 degrees and 2735 C, respectively. Carbon solubility is evident only at 2540 C, the eutectoid temperature. A new phase, W5C3, was discovered which is stable only above 2540 C. WC decomposes at 2730C into W5C3 and C.
Lecture Notes On Equilibrium Point Defects And Thermophysical Properties Of Metals
Author: Yaakov KraftmakherPublisher: World Scientific
ISBN: 9814493961
Category : Science
Languages : en
Pages : 342
Book Description
Despite the significant progress in the study of point defects in metals, some important problems still do not have unambiguous solutions. One of the most practically important questions relates to equilibrium defect concentrations. There exist two opposite viewpoints: (1) defect contributions to physical properties of metals at high temperatures are small and cannot be separated from the effects of anharmonicity; the equilibrium defect concentrations at the melting points are in the range of 10-4 to 10-3; (2) in many cases, defect contributions to the specific heat of metals are much larger than nonlinear effects of anharmonicity and can be separated without crucial errors; the equilibrium concentrations at the melting points are of the order of 10-3 in low-melting-point metals and 10-2 in high-melting-point metals.This book discusses the experimental results and theoretical considerations favoring each claim. At present, the majority of the scientific community hold the first viewpoint. Regrettably, the data supporting the second viewpoint have never been displayed and discussed together, and the criticism of this viewpoint has never included a detailed analysis. Important arguments supporting this viewpoint have appeared in the last decade. It may turn out that just calorimetric determinations provide the most reliable values of equilibrium defect concentrations in metals. In this book, the main attention is paid to equilibrium point defects in metals and their relation to thermophysical properties of metals. Along with a discussion on experimental data and theoretical estimates now available, some approaches are proposed that seem to be most suitable for settling the question.
Research Study to Determine the Phase Equilibrium Relations of Selected Metal Carbides at High Temperatures
Author: United States. Wright Air Development DivisionPublisher:
ISBN:
Category : Carbides
Languages : en
Pages : 36
Book Description
High-Temperature Corrosion and Materials Applications
Author: George Y. LaiPublisher: ASM International
ISBN: 1615030557
Category : Technology & Engineering
Languages : en
Pages : 469
Book Description
George Lai's 1990 book, High-Temperature Corrosion of Engineering Alloys, is recognized as authoritative and is frequently consulted and often cited by those in the industry. His new book, almost double in size with seven more chapters, addresses the new concerns, new technologies, and new materials available for those engaged in high-temperature applications. As we strive for energy efficiency, the realm of high-temperature environments is expanding and the need for information on high temperature materials applications was never greater. In addition to extensive expansion on most of the content of the original book, new topics include erosion and erosion-corrosion, low NOx combustion in coal-fired boilers, fluidized bed combustion, and the special demands of waste-to-energy boilers, waste incinerators, and black liquor recovery boilers in the pulp and paper industry. The corrosion induced by liquid metals is discussed and protection options are presented.
Chemical Thermodynamics For Metals And Materials (With Cd-rom For Computer-aided Learning)
Author: Hae-geon LeePublisher: World Scientific Publishing Company
ISBN: 1911298895
Category : Technology & Engineering
Languages : en
Pages : 324
Book Description
A number of thermodynamic books claiming to be original in both presentation and approach have been published. However, thermodynamics is still a confusing subject for uninitiated students and an “easy-to-forget” one for graduate engineers. In order to solve these problems, this computer aided learning package — textbook and CD-ROM — takes a new approach.This package is unique and beneficial in that it simulates a classroom lecture: it actually writes important equations and concepts on a virtual board, underlines, draws circles, places ticks to emphasise important points, draws arrows to indicate relationships, uses colours for visual effect, erases some parts to write new lines, and even repeats some parts of the lesson to stress their importance. This realistic simulation is made possible by the employment of the multimedia capabilities of the modern-day computer. Readers are not just passively presented with thermodynamics, they can also interactively select and repeat any particular topic of interest as many times as they want. This flexibility allows readers to choose their own pace of presentation. This complementary set is in many important respects better than the books that are currently available on the subject.