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The Aging Response Of Shock Deformed Nickel Base Superalloys
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Book Synopsis The Aging Response of Shock Deformed Nickel-Base Superalloys by : R. N. Orava
Download or read book The Aging Response of Shock Deformed Nickel-Base Superalloys written by R. N. Orava and published by . This book was released on 1972 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was conducted to study the effect of explosive shock loading on the microstructure and mechanical properties of subsequently age- hardened Udimet 700 nickel-base superalloy. Such shock thermomechanical processing (TMP) has been termed shock-aging. The results of shock TMP, conventional TMP by cold rolling, and thermal processing alone, were compared. U-700 sheet was subjected to a planar plastic shock wave, or rolled to a strain equivalent to the transient shock strain, in each of three initial conditions: solution treated, gamma' aged, or carbide aged.
Book Synopsis Response of Nickel-Base Superalloys to Thermo-Mechanical Processing by Shock-Wave Deformation by : R. Norman Orava
Download or read book Response of Nickel-Base Superalloys to Thermo-Mechanical Processing by Shock-Wave Deformation written by R. Norman Orava and published by . This book was released on 1974 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was conducted to study the synergistic effects of thermal treatment and explosive shock loading on the microstructure and mechanical properties of Udimet 700 and Inconel 718. The influence of such shock thermomechanical processing (TMP) is compared with that of thermal processing alone, and with that of conventional TMP by cold rolling to an effective strain equivalent to the transient shock strain. The applied peak shock pressures were 527 kbar for Udimet 700, and 510 kbar for Inconel 718, with a 1-microsec duration, and the equivalent thickness reduction by rolling was 19.1% for both materials. In general, it was found that the most favorable TMP schedules are those which involve a partial aging treatment prior to cold working. The shock TMP of Udimet 700 and Inconel 718 resulted in improvements in room and elevated temperature strengths, elevated temperature ductility and toughness in the minimum ductility region, stress-rupture life, and low-cycle fatigue life. (Modified author abstract).
Book Synopsis Powder Metallurgy of Superalloys by : G. H. Gessinger
Download or read book Powder Metallurgy of Superalloys written by G. H. Gessinger and published by Elsevier. This book was released on 2013-10-22 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Powder Metallurgy of Superalloys details the advancement of powder metallurgy in the context of producing superalloys. The book is comprised of nine chapters that cover the underlying principles of superalloys produced through powder metallurgy. The text first covers concerns in pre-alloyed dispersion-free powders, such as powder production and characterization; powder consolidation methods; and quality control and non-destructive evaluation of P/M superalloys. The next chapter talks about oxide-dispersion-strengthened superalloys. Next, the book discusses joining techniques for P/M superalloys and the practical applications of P/M superalloys. The title will be of great use to professionals in the materials manufacturing industry.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High-Pressure Science and Technology by : K. D. Timmerhaus
Download or read book High-Pressure Science and Technology written by K. D. Timmerhaus and published by Springer Science & Business Media. This book was released on 2013-10-14 with total page 2120 pages. Available in PDF, EPUB and Kindle. Book excerpt: High pressure has become a basic variable in many areas of science and engineering. It extends from disciplines of geophysics and astrophysics through chemistry and physics to those of modern biology, electrical and chemical engineering. This breadth has been recognized for some time, but it was not until the early 1960's that an international group of scientists and engineers established the Association Internationale for Research and Advancement of High Pressure Science and Technology (AIRAPT) for bringing these various aspects of high pressure together at an international conference. The First AIRAPT International High Pressure Conference was held in 1965 in France and has been convened at approximately two to three year intervals since that time. The past four AIRAPT International High Pressure Conferences have been held in Germany, Scotland, Japan and the U.S.S.R. Since the first meeting of this kind, our understanding of high pressure behavior of physical systems has increased greatly.
Book Synopsis Advances in Deformation Processing by : John J. Burke
Download or read book Advances in Deformation Processing written by John J. Burke and published by Springer. This book was released on 1978-02-01 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Army Materials and Mechanics Research Center has con ducted the Sagamore Army Materials Research Conference in coop eration with the Materials Science Group of the Department of Chemical Engineering and Materials Science of Syracuse University since 1954. The purpose of the conference has been to gather to gether scientists and engineers from academic institutions, in dustry and government who are uniquely qualified to explore in depth a subject of importance to the Army, the Department of Defense and the scientific community. This volume, Advances in Deformation Processing, addresses the areas of Analytical Advances, Workability, Processing to Optimize Properties, Advanced Applications - Materials, and Advanced Applications - Processes. The dedicated assistance of Mr. Joseph Bernier of the Army Materials and Mechanics Research Center throughout the stages of the conference planning and finally the publication of the Sagamore Conference Proceedings is deeply appreciated. The support of Helen Brown DeMascio of Syracuse University in p- paring the final manuscript is acknowledged. The continued active interest and support of these conferences by Dr. A. E. Gorum, Director of the Army Materials and Mechanics Research Center, is appreciated. Syracuse University Syracuse, New York The Editors vii Contents SESSION I INTRODUCTION A. E. Gorum, Moderator Continuum Mechanics and Deformation Processing 1.
Book Synopsis Shock Waves and High-Strain-Rate Phenomena in Metals by : Marc A. Meyers
Download or read book Shock Waves and High-Strain-Rate Phenomena in Metals written by Marc A. Meyers and published by Springer. This book was released on 1981 with total page 1130 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scientific understanding of high-velocity deformation has advanced substantially during the past decade. On the one hand, the framework for a theory explaining the metallurgical effects of shock waves is beginning to take shape; on the other hand, the technological applications of high strain-rate processes have found their way into industries in countries around the world. Ex plosive cladding, welding, forming, compaction and consolidation, cutting, and hardening, in addition to high energy-rate deformation processes using other energy sources, are some of the topics of contemporary technological importance. Metallurgical effects are of the utmost importance in both the scientific understanding of the phenomena involved, and in the successful development and utilization of the associated applications. The international conference upon which this book is based had as its major objectives the acceleration of progress in the field of high-strain rate deformation and fabrication, including applications, by providing a forum for the exchange of state-of-the art information on the metallurgical effects of high strain-rate deformation and fabrication; and the organization of this informa tion into a timely and coherent body of knowledge focused around significant areas and applications. This volume is a manifestation of these objectives. In addition, the contents of this book were organized to provide for a somewhat logical perspective of the fundamentals, development, and state-of-the-art applications of high strain-rate and shock phenomena.
Book Synopsis Explosive Welding, Forming and Compaction by : T.Z. Blazynski
Download or read book Explosive Welding, Forming and Compaction written by T.Z. Blazynski and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last two decades have seen a steady and impressive development, and eventual industrial acceptance, of the high energy-rate manufact turing techniques based on the utilisation of energy available in an explo sive charge. Not only has it become economically viable to fabricate complex shapes and integrally bonded composites-which otherwise might not have been obtainable easily, if at all-but also a source of reasonably cheap energy and uniquely simple techniques, that often dispense with heavy equipment, have been made available to the engineer and applied scientist. The consolidation of theoretical knowledge and practical experience which we have witnessed in this area of activity in the last few years, combined with the growing industrial interest in the explosive forming, welding and compacting processes, makes it possible and also opportune to present, at this stage, an in-depth review of the state of the art. This book is a compendium of monographic contributions, each one of which represents a particular theoretical or industrial facet of the explosive operations. The contributions come from a number of practising engineers and scientists who seek to establish the present state of knowledge in the areas of the formation and propagation of shock and stress waves in metals, their metallurgical effects, and the methods of experimental assessment of these phenomena.
Book Synopsis The Effect of Prior Deformation on the Aging Characteristics of a CO-NI Base Superalloy by : Gerald Mitchell Omichinski
Download or read book The Effect of Prior Deformation on the Aging Characteristics of a CO-NI Base Superalloy written by Gerald Mitchell Omichinski and published by . This book was released on 1977 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Superplastic Deformation of a PM Nickel Base Superalloy by : Shri Krishna Srivastava
Download or read book Superplastic Deformation of a PM Nickel Base Superalloy written by Shri Krishna Srivastava and published by . This book was released on 1980 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fundamentals of Strength by : Paul Follansbee
Download or read book Fundamentals of Strength written by Paul Follansbee and published by Springer Nature. This book was released on 2022-07-28 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition updates and expands on the class-tested first edition text, augmenting discussion of dynamic strain aging and austenitic stainless steels and adding a section on analysis of nickel-base superalloys that shows how the mechanical threshold stress (MTS) model, an internal state variable constitutive formulation, can be used to de-convolute synergistic effects. The new edition retains a clear and rigorous presentation of the theory, mechanistic basis, and application of the MTS model. Students are introduced to critical competencies such as crystal structure, dislocations, thermodynamics of slip, dislocation–obstacle interactions, deformation kinetics, and hardening through dislocation accumulation. The model described in this volume facilitates readers’ understanding of integrated computational materials engineering (ICME), presenting context for the transition between length scales characterizing the mesoscale (mechanistic) and the macroscopic. Presenting readers a model buttressed by detailed examples and applications, the textbook is ideal for students, practitioners, and materials researchers.
Book Synopsis Thermomechanical Processing of a Nickel-base Superalloy by Cold-rolling and Shock-wave Deformation by : Marcos André Meyers
Download or read book Thermomechanical Processing of a Nickel-base Superalloy by Cold-rolling and Shock-wave Deformation written by Marcos André Meyers and published by . This book was released on 1974 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microstructural Evolution and Deformation Mechanisms in Nickel-base Super Alloys by : Hyo-jin Song
Download or read book Microstructural Evolution and Deformation Mechanisms in Nickel-base Super Alloys written by Hyo-jin Song and published by . This book was released on 2010 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nickel-base superalloys are used at high temperature applications in aerospace and power generation. The objective of present work is to gain a better understanding of microstructural evolution and deformation mechanisms in Nickel-base superalloys. The microstructure of the Nickel base superalloy is basically composed of gamma matrix with eta, delta, gamma prime or gamma double prime/or both, carbides and nitrides. Cold working of IN 718 and Waspaloy to 50% reduction led to an increase in hardness. This hardening was related to the continuous increase in dislocation density in both alloys. Cold working of IN 718 to levels of 10% and higher also led to shearing of the gamma double prime precipitates present initially, leading to their dissolution and the redistribution of the alloying elements into the matrix. Shot peening of both alloys introduces near surface compressive residual stresses and a significant increase in the surface and near-surface hardness to a distance of ~200-400 [mu]m in both alloys. Shot peening of both alloys followed by aging at 900°C quickly led to a large drop in hardness to near that of the bulk material. Aging shot peened the IN 718 at 700°C led to an increase in the hardness throughout the sample. Microstructural characterization revealed that this hardening is related to the formation of new precipitates of gamma prime or gamma double prime or both within the gamma matrix. Aging shot peened Waspaloy at 700°C led to an increase or decrease at near surface region at short time, depending on the Almen intensity. Microstructural characterization shows that these changes are related to partial reduction in % cold work by recrystallization and/or new gamma prime precipitation, depending on the Almen intensity. The hardening, microstructural evolution and stress rupture behavior of IN 740 were studied. Aging of the IN 740 alloy led to significant hardening due to the gamma prime precipitation. The gamma prime coarsening in aged and tensile tested and stress rupture tested IN740 alloy was observed to follow the LSW theory. Gamma prime coarsening was promoted by the applied stress and accelerated between 750 and 800°C. Applied stress was also found to significantly enhance the eta phase formation. Various models for strengthening in Ni-base superalloys were considered and their contributions to strength following aging were calculated utilizing the experimentally measured gamma prime sizes and volume fractions. Good agreement between the calculated and experimentally measured yield strengths was obtained. Based on these calculations and characterization of the deformation microstructure in the aged and tensile-tested samples, it was concluded that apart from solid solution strengthening, the main strengthening contributions from the gamma prime precipitates is associated with precipitate shearing involving either weak pair dislocation coupling or strong pair dislocation coupling/ or both at 700°C for 100h, strong pair dislocation coupling following aging at 700°C for 1000, 3000h and 750°C for 100, 1000h, strong pair coupling or Orowan process/or both following aging at 750°C for 3000h and 800°C for 100h, and mainly Orowan process following aging at 800°C for 1000 and 3000h.
Book Synopsis Superalloys by : Matthew J. Donachie
Download or read book Superalloys written by Matthew J. Donachie and published by ASM International. This book was released on 2002 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers virtually all technical aspects related to the selection, processing, use, and analysis of superalloys. The text of this new second edition has been completely revised and expanded with many new figures and tables added. In developing this new edition, the focus has been on providing comprehensive and practical coverage of superalloys technology. Some highlights include the most complete and up-to-date presentation available on alloy melting. Coverage of alloy selection provides many tips and guidelines that the reader can use in identifying an appropriate alloy for a specific application. The relation of properties and microstructure is covered in more detail than in previous books.
Book Synopsis Government Reports Announcements by :
Download or read book Government Reports Announcements written by and published by . This book was released on 1974 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Index written by and published by . This book was released on 1972 with total page 1164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metals Abstracts written by and published by . This book was released on 1998 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt:
