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Hydrogen Embrittlement In Metallic Amorphous Alloys
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Book Synopsis Hydrogen Embrittlement in Metallic Amorphous Alloys by : S. Jayalakshmi
Download or read book Hydrogen Embrittlement in Metallic Amorphous Alloys written by S. Jayalakshmi and published by . This book was released on 2010 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: In hydrogen-related energy technologies, the selection of materials is critical since hydrogen can modify the initial microstructure and induce damage that could result in the reduction of mechanical properties and embrittlement. In this context, metallic amorphous alloys are viable candidates due to their high hydrogen solubility. Earlier studies demonstrated the positive interaction of hydrogen with amorphous alloys. However, similar to crystalline metals, embrittlement by hydrogen was also reported. In order to clarify the role of hydrogen in this class of alloys, we present an overview on the hydrogen interaction and embrittlement, encompassing results from published studies and from our own investigations on several Zr-, Ni-, and Ti-based amorphous alloy systems. The importance of the constituent elements and composition in determining the structure, hydrogenation kinetics, and hydrogen absorption capacity were brought out. The resistance to embrittlement varies upon the alloy system, constituent elements, and atomic packing of the amorphous alloy. In metalloid-free amorphous alloys, the bending ductility and tensile fracture strength of thin ribbons could be preserved up to a critical concentration beyond which hydrogen degradation occurs. The value of this critical concentration was found to vary from a few percent to about 45 at. % H. The mechanism of embrittlement induced by hydrogen was identified from the correlation of the observed changes in structural, thermal, and mechanical properties. It was found that hydrogen plays a prime role in altering the local atomic structure by reordering the nearest neighbor atomic configuration. The structural dilatation so produced was found to be the source of hydrogen-induced failure in these amorphous alloys. Also a "hydrogen concentration versus dilatation" map has been proposed, which would serve as a tool to predict the hydrogen-induced ductile-to-brittle transition in these alloys.
Book Synopsis Perspectives in Hydrogen in Metals by : M. F. Ashby
Download or read book Perspectives in Hydrogen in Metals written by M. F. Ashby and published by Elsevier. This book was released on 2017-09-21 with total page 773 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perspectives in Hydrogen in Metals: Collected Papers on the Effect of Hydrogen on the Properties of Metals and Alloys discusses the advancement in the understanding of the effects of hydrogen on the physical and mechanical properties of metals and alloys. The title first covers solubility and other thermodynamic properties, and then proceeds to tackling diffusivity. Next, the selection discusses the trapping of hydrogen by defects and hydride formation. The text also talks about hydrogen in amorphous metals, along with the effect of hydrogen on plastic deformation. The last chapter covers hydrogen embrittlement. The book will be of great use chemists, metallurgists, and materials engineers.
Book Synopsis Hydrogen in Disordered and Amorphous Solids by : Gust Bambakidis Jr.
Download or read book Hydrogen in Disordered and Amorphous Solids written by Gust Bambakidis Jr. and published by Springer. This book was released on 2013-12-19 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume in the NATO ASI series dealing with the topic of hydrogen in solids. The first (V. B76, Metal Hydrides) appeared five years ago and focussed primarily on crystalline phases of hydrided metallic systems. In the intervening period, the amorphous solid state has become an area of intense research activity, encompassing both metallic and non-metallic, e.g. semiconducting, systems. At the same time the problem of storage of hydrogen, which motivated the first ASI, continues to be important. In the case of metallic systems, there were early indications that metallic glasses and disordered alloys may be more corrosion resistant, less susceptible to embrittlement by hydrogen and have a higher hydrogen mobility than ordered metals or intermetallics. All of these properties are desirable for hydrogen storage. Subsequent research has shown that thermodynamic instability is a severe problem in many amorphous metal hydrides. The present ASI has provided an appropriate forum to focus on these issues.
Book Synopsis Liquid Metal and Hydrogen Embrittlement of Nickel and Iron-Base Amorphous Alloys by : S. Ashok
Download or read book Liquid Metal and Hydrogen Embrittlement of Nickel and Iron-Base Amorphous Alloys written by S. Ashok and published by . This book was released on 1981 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tensile and bend properties of nickel and iron-base amorphous alloys have been studied at 200 C in the presence of liquid lithium and in air. Nickel base alloys show severe embrittlement, except for Metglas 2826MB. The results are discussed on the basis of proposed mechanisms of LME and it is concluded that the embrittlement of amorphous alloys takes place by an enhanced shear mechanism. Hydrogen embrittlement also seems to occur by a similar process. (Author).
Book Synopsis Thermal and Time Stability of Amorphous Alloys by : A. M. Glezer
Download or read book Thermal and Time Stability of Amorphous Alloys written by A. M. Glezer and published by CRC Press. This book was released on 2017-09-07 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference is dedicated to the problem of time-temperature stability of amorphous (non-crystalline) metal alloys with strongly nonequilibrium structure and unique physical and mechanical properties that are obtained by quenching from the melt at a rate that exceeds one millions of degrees c.o.s. second. As a stability test, the behavior of the plasticity of amorphous alloys is studied. The book examines the fundamental characteristics of amorphous alloys, the basic laws of structural relaxation, generalized information about the phenomenon of the ductile-brittle transition (temper embrittlement), the development of physically justified methods of predicting the stability of the properties, and provides information about the attempts of controlling the structure for the purpose of suppressing or deceleration of the ductile-brittle transition and, as a consequence, increasing the temperature and temporal stability of the amorphous state.
Book Synopsis Fundamentals of Hydrogen Embrittlement by : Michihiko Nagumo
Download or read book Fundamentals of Hydrogen Embrittlement written by Michihiko Nagumo and published by Springer Nature. This book was released on 2023-05-22 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the second edition of the one originally published in 2016, as the first comprehensive treatment on the fundamentals of hydrogen embrittlement of metallic materials, mainly steel. The book provides students and researchers engaging in hydrogen problems with a unified view of the subject. Establishing reliable principles for materials design against hydrogen embrittlement and assessing their performance are recent urgent industrial needs in developing high-strength steel for hydrogen energy equipment and weight-reducing vehicles. The interdisciplinary nature of the subject, covering metal physics, materials science, and mechanics of fracture, has disturbed a profound understanding of the problem. In this book, previous studies are critically reviewed, and supplemental descriptions of fundamental ideas are presented when necessary. Emphasis is placed on experimental facts, with particular attention to their implication rather than phenomenological appearance. The adopted experimental conditions are also noted since the operating mechanism of hydrogen might differ by material and environment. For theories, employed assumptions and premises are noted to examine their versatility. Progress in the past decade in experimental and theoretical tools is remarkable and has nearly unveiled characteristic features of hydrogen embrittlement. Proposed models have almost covered feasible aspects of the function of hydrogen. This second edition has enriched the contents with recent crucial findings. Chapters on the manifestation of embrittlement in the deterioration of mechanical properties and microscopic features are reorganized, and the description is revised for the convenience of readers’ systematic understanding. A new chapter is created for delayed fracture in atmospheric environments as a conclusive subject of critical ideas presented in this book.
Book Synopsis Hydrogen Embrittlement and Stress Corrosion Cracking by : Alexander Robert Troiano
Download or read book Hydrogen Embrittlement and Stress Corrosion Cracking written by Alexander Robert Troiano and published by ASM International. This book was released on 1984-01-01 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Advancements in Metallic Glasses by : Vitaly A. Khonik
Download or read book Recent Advancements in Metallic Glasses written by Vitaly A. Khonik and published by MDPI. This book was released on 2021-06-09 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Special Issue “Recent Advancements in Metallic Glasses” presents ten original papers, considering both scientific and application issues related to metallic glasses. The papers are devoted to general consideration of the formation and defects of the glassy structure, defect evolution due to heat treatment, deformation behavior upon compression and high-pressure torsion, amorphous-crystalline transformation, hydrogenation behavior, and biomedical applications.
Book Synopsis Advances in Hydrogen Embrittlement Study by : Vladimir A. Polyanskiy
Download or read book Advances in Hydrogen Embrittlement Study written by Vladimir A. Polyanskiy and published by Springer Nature. This book was released on 2021-03-13 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents a collection of chapters on the current problems associated with hydrogen damage. It discusses the effect of hydrogen on material properties and its interaction with the material microstructure, physical features of hydrogen transport in metals and alloys, as well as applicable methods of measuring concentration of hydrogen in solid media.
Book Synopsis Hydrogen in Engineering Metallic Materials by : V. G. Gavriljuk
Download or read book Hydrogen in Engineering Metallic Materials written by V. G. Gavriljuk and published by Springer Nature. This book was released on 2022-04-07 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book analyzes the effect of hydrogen on the atomic-level interactions in metals, detailing the corresponding changes in the physical properties of crystal lattice defects, diffusion, and phase transformations in metallic materials as a result of hydrogen loading. It presents a novel derivation of the structure of stacking faults, the mobility of dislocations, and short-range atomic order in hydrogen-infused metallic alloys based on the change in the concentration of free electrons. It reviews the current hypotheses behind hydrogen embrittlement of iron-, nickel, and titanium-based alloys, focusing on the phenomenon of hydrogen-enhanced localized plasticity and taking into account inherent atomic states in the alloys and other effects due to hydrogen loading. Finally, the book analyzes the use of hydrogen as an interim alloying element in the technological processing of titanium alloys, discussing the necessary preconditions for hydrogen-enhanced plasticity of metals. This book is an excellent resource for graduate students, academic researchers, and practicing engineers involved in the development of advanced hydrogen-resistant metallic materials.
Book Synopsis Hydrogen Diffusion in Metals by : David J. Fisher
Download or read book Hydrogen Diffusion in Metals written by David J. Fisher and published by Trans Tech Publications Ltd. This book was released on 1999-03-31 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present work draws upon Diffusion and Defect Forum's 30-year project of summarizing recent progress in the fields of diffusion and defect research, by collating the relevant data which have been published during that time. The large number of studies of iron alloys reflects the great commercial importance of hydrogen embrittlement; an annoying phenomenon which has long plagued steel fabricators.
Book Synopsis Hydrogen Embrittlement Testing by : Raymond L.
Download or read book Hydrogen Embrittlement Testing written by Raymond L. and published by ASTM International. This book was released on 1974 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Liquid Metal Embrittlement of Amorphous Alloys by : Norman S. Stoloss
Download or read book Liquid Metal Embrittlement of Amorphous Alloys written by Norman S. Stoloss and published by . This book was released on 1980 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid metal embrittlement of four iron-base amorphous alloys has been demonstrated by means of tensile and bend tests. Fractographic features are shown to change markedly when fracture is accomplished under liquid metals. Similarities are noted between fractographic features in liquid metals and after hydrogen charging. The results are shown to be generally consistent with a model of adsorption-enhanced shear at crack tips by embrittling agents. (Author).
Book Synopsis Hydrogen Embrittlement by : Louis Raymond
Download or read book Hydrogen Embrittlement written by Louis Raymond and published by ASTM International. This book was released on 1988 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gaseous Hydrogen Embrittlement of Materials in Energy Technologies by : Richard P Gangloff
Download or read book Gaseous Hydrogen Embrittlement of Materials in Energy Technologies written by Richard P Gangloff and published by Elsevier. This book was released on 2012-01-16 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many modern energy systems are reliant on the production, transportation, storage, and use of gaseous hydrogen. The safety, durability, performance and economic operation of these systems is challenged by operating-cycle dependent degradation by hydrogen of otherwise high performance materials. This important two-volume work provides a comprehensive and authoritative overview of the latest research into managing hydrogen embrittlement in energy technologies.Volume 1 is divided into three parts, the first of which provides an overview of the hydrogen embrittlement problem in specific technologies including petrochemical refining, automotive hydrogen tanks, nuclear waste disposal and power systems, and H2 storage and distribution facilities. Part two then examines modern methods of characterization and analysis of hydrogen damage and part three focuses on the hydrogen degradation of various alloy classesWith its distinguished editors and international team of expert contributors, Volume 1 of Gaseous hydrogen embrittlement of materials in energy technologies is an invaluable reference tool for engineers, designers, materials scientists, and solid mechanicians working with safety-critical components fabricated from high performance materials required to operate in severe environments based on hydrogen. Impacted technologies include aerospace, petrochemical refining, gas transmission, power generation and transportation. Summarises the wealth of recent research on understanding and dealing with the safety, durability, performance and economic operation of using gaseous hydrogen at high pressure Reviews how hydrogen embrittlement affects particular sectors such as the petrochemicals, automotive and nuclear industries Discusses how hydrogen embrittlement can be characterised and its effects on particular alloy classes
Book Synopsis Hydrogen Degradation of Ferrous Alloys by : Richard A. Oriani
Download or read book Hydrogen Degradation of Ferrous Alloys written by Richard A. Oriani and published by William Andrew. This book was released on 1985 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermal and Time Stability of Amorphous Alloys by : A. M. Glezer
Download or read book Thermal and Time Stability of Amorphous Alloys written by A. M. Glezer and published by CRC Press. This book was released on 2017-09-07 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference is dedicated to the problem of time-temperature stability of amorphous (non-crystalline) metal alloys with strongly nonequilibrium structure and unique physical and mechanical properties that are obtained by quenching from the melt at a rate that exceeds one millions of degrees c.o.s. second. As a stability test, the behavior of the plasticity of amorphous alloys is studied. The book examines the fundamental characteristics of amorphous alloys, the basic laws of structural relaxation, generalized information about the phenomenon of the ductile-brittle transition (temper embrittlement), the development of physically justified methods of predicting the stability of the properties, and provides information about the attempts of controlling the structure for the purpose of suppressing or deceleration of the ductile-brittle transition and, as a consequence, increasing the temperature and temporal stability of the amorphous state.
