High Pressure Research In Chemical Engineering Department Of Yale University
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Author | : Ellis E. Fletcher |
Publisher | : |
Total Pages | : 82 |
Release | : 1964 |
Genre | : Steel |
ISBN | : |
This report deals with the deleterious effects of hydrogen gas on steel at elevated temperatures and/or pressures. Hydrogen attack on steels is manifest as decarburization, intergranular fissuring, or blistering. These conditions result in lowered tensile strength, ductility, and impact strength. The reaction of hydrogen with iron carbide to form methane is probably the most important chemical reaction involved in the attack on steel by hydrogen. Attack of steel at elevated temperatures and pressures is limited or prevented by the following measures: (1) use of steel alloyed with strong carbide-forming elements, (2) use of liners of resistant alloy steels, and (3) substitution of resistant nonferrous alloys.
Author | : American Society of Mechanical Engineers. Industrial Instruments and Regulators Division |
Publisher | : |
Total Pages | : 96 |
Release | : 1953 |
Genre | : Engineering instruments |
ISBN | : |
Author | : |
Publisher | : Academic Press |
Total Pages | : 623 |
Release | : 1992-02-03 |
Genre | : Science |
ISBN | : 0080565638 |
Advances in Chemical Engineering
Author | : Michael Smialowski |
Publisher | : Elsevier |
Total Pages | : 469 |
Release | : 2014-05-09 |
Genre | : Science |
ISBN | : 1483213714 |
Hydrogen in Steel: Effect of Hydrogen on Iron and Steel During Production, Fabrication, and Use focuses on the effect of hydrogen on iron and steel during production, fabrication, and use. Topics covered range from the solubility of hydrogen in iron and ferrous alloys to the diffusion and permeation of hydrogen through iron and steel. Electrochemical problems related to the ability of iron to absorb hydrogen from aqueous solutions are also considered. Comprised of 19 chapters, this book begins with a detailed treatment of the nature and properties of metal-hydrogen systems, paying particular attention to the behavior of hydrogen in the bulk of the metal phase and the mechanism of reactions between metals and hydrogen or hydrogen-producing compounds. The reader is then introduced to the solubility of hydrogen in iron and ferrous alloys as well as the nature of the final product of the hydrogen-iron interaction. Subsequent chapters deal with dimensional changes and stresses produced in steel by cathodically evolved hydrogen; the effects of hydrogen on the physical, mechanical, and chemical properties of iron and steel; influence of welding on hydrogen; and sulfide corrosion cracking of steel. The effects of pickling on steel are also examined, along with the blistering and embrittlement caused by hydrogen on the base metal during electroplating. This book will be of value to students and practitioners in the field of physical chemistry.
Author | : Ellis E. Fletcher |
Publisher | : |
Total Pages | : 96 |
Release | : 1965 |
Genre | : Steel |
ISBN | : |
This report discusses the ways in which H2 enters steels, how it moves through steel, and methods whereby it may be removed from steel. The solubility of H2 is important in understanding other aspects of the behavior of H2 in steel and such aspects of solubility as preferred lattice sites, lattice expansion, measurements of solubility, and estimates of equilibrium H2 pressure in steel are discussed. The permeation of H2 through steel consisting of interactions at both the entry and exit surfaces of the metal as well as diffusion through the bulk metal is discussed. The various possibilities of H2 entry by corrosion processes, electrochemical processes, and other means are considered as well as factors which influence the rate of H2 removal from iron and steel. (Author).
Author | : American Chemical Society. Committee on Professional Training |
Publisher | : |
Total Pages | : 266 |
Release | : 1953 |
Genre | : Chemical engineering |
ISBN | : |
Author | : Frederick J. Edeskuty |
Publisher | : Springer Science & Business Media |
Total Pages | : 239 |
Release | : 2013-11-22 |
Genre | : Science |
ISBN | : 1489903070 |
The importance of safety in any scientific endeavor is never in question. However, when cryogenic temperatures are involved, safety is especially important. In addition to observing the normal precautions, one must also take into account the variations of physical properties that occur at low temperatures. At these tempera tures, some properties not only exhibit large differences from their normal values but also can vary widely over a small temperature range. Before any cryogenic project is started, a thorough knowledge of the possible hazards is necessary. Only in this way can the safest operation be attained. Over the hundred-year history of cryogenic research, this has been shown to be the case. Keeping this requirement in mind is an essential ingredient in the quest for accident-free work. The past four or five decades have seen a great expansion of cryogenic technology. Cryogenic liquids, such as oxygen, nitrogen, hydrogen, and helium, have become commonly used in a number of different applications and are easily available in any part of the United States and, indeed, almost anywhere in the world. Not only are these liquids available, they have become less expensive and also available in ever larger quantities. As quantities increase, so also do the conse quences of mishaps. The future seems to hold promise of ever larger and more widespread use of the common cryogens. Thus, the importance of safety also increases as time progresses.
Author | : |
Publisher | : |
Total Pages | : 710 |
Release | : 1970 |
Genre | : High pressure (Science) |
ISBN | : |
Author | : Daniel E. Rosner |
Publisher | : Butterworth-Heinemann |
Total Pages | : 571 |
Release | : 2013-10-22 |
Genre | : Technology & Engineering |
ISBN | : 1483162680 |
Transport Processes in Chemically Reacting Flow Systems discusses the role, in chemically reacting flow systems, of transport processes—particularly the transport of momentum, energy, and (chemical species) mass in fluids (gases and liquids). The principles developed and often illustrated here for combustion systems are important not only for the rational design and development of engineering equipment (e.g., chemical reactors, heat exchangers, mass exchangers) but also for scientific research involving coupled transport processes and chemical reaction in flow systems. The book begins with an introduction to transport processes in chemically reactive systems. Separate chapters cover momentum, energy, and mass transport. These chapters develop, state, and exploit useful quantitative ""analogies"" between these transport phenomena, including interrelationships that remain valid even in the presence of homogeneous or heterogeneous chemical reactions. A separate chapter covers the use of transport theory in the systematization and generalization of experimental data on chemically reacting systems. The principles and methods discussed are then applied to the preliminary design of a heat exchanger for extracting power from the products of combustion in a stationary (fossil-fuel-fired) power plant. The book has been written in such a way as to be accessible to students and practicing scientists whose background has until now been confined to physical chemistry, classical physics, and/or applied mathematics.
Author | : S. P. Pfaff |
Publisher | : |
Total Pages | : 30 |
Release | : 1958 |
Genre | : Shock tubes |
ISBN | : |