Grain Boundaries

Author : Louisette Priester
Publisher : Springer Science & Business Media
Page : 458 pages
File Size : 44,6 Mb
Release : 2012-11-28
Category : Technology & Engineering
ISBN : 9789400749696

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Grain Boundaries by Louisette Priester Pdf

Grain boundaries are a main feature of crystalline materials. They play a key role in determining the properties of materials, especially when grain size decreases and even more so with the current improvements of processing tools and methods that allow us to control various elements in a polycrystal. This book presents the theoretical basis of the study of grain boundaries and aims to open up new lines of research in this area. The treatment is light on mathematical approaches while emphasizing practical examples; the issues they raise are discussed with reference to theories. The general approach of the book has two main goals: to lead the reader from the concept of ‘ideal’ to ‘real’ grain boundaries; to depart from established knowledge and address the opportunities emerging through "grain boundary engineering", the control of morphological and crystallographic features that affect material properties. The book is divided in three parts: I ‘From interganular order to disorder’ deals with the concept of the perfect grain boundary, at equilibrium, and questions the maintenance of its crystalline state. II ‘From the ideal to the real grain boundary’ deals with the concept of the faulted grain boundary. It attempts to reveal the influence of the grain boundary structure on its defects, their formation and their accommodation. III ‘From free to constrained grain boundaries’ is devoted to grain boundary ensembles starting from the triple junction (the elemental configuration) to real grain boundary networks in polycrystals This part covers a new and topical development in the field. It presents for the first time an avenue for researchers working on macroscopic aspects, to approach the scale of description of grain boundaries. Audience: graduate students, researchers and engineers in Materials Science and all those scientists pursuing grain boundary engineering in order to improve materials performance.

Author : Pavel Lejcek
Publisher : Springer Science & Business Media
Page : 239 pages
File Size : 40,7 Mb
Release : 2010-07-20
Category : Technology & Engineering
ISBN : 9783642125058

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Grain Boundary Segregation in Metals by Pavel Lejcek Pdf

Grain boundaries are important structural components of polycrystalline materials used in the vast majority of technical applications. Because grain boundaries form a continuous network throughout such materials, their properties may limit their practical use. One of the serious phenomena which evoke these limitations is the grain boundary segregation of impurities. It results in the loss of grain boundary cohesion and consequently, in brittle fracture of the materials. The current book deals with fundamentals of grain boundary segregation in metallic materials and its relationship to the grain boundary structure, classification and other materials properties.

Author : Gunter Gottstein,Lasar S. Shvindlerman
Publisher : CRC Press
Page : 702 pages
File Size : 40,6 Mb
Release : 2009-12-23
Category : Science
ISBN : 9781420054361

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Grain Boundary Migration in Metals by Gunter Gottstein,Lasar S. Shvindlerman Pdf

A major goal of materials science is to create new engineering materials and optimize their cost and performance. Understanding how adjacent materials behave at their borders is an essential part of this process. Grain boundaries are the longest-known crystal defects, but although they were discovered in the mid-eighteenth century, until quite rece

Author : Xiaohui Zeng
Publisher : Cuvillier Verlag
Page : 125 pages
File Size : 49,7 Mb
Release : 2007
Category : Electronic
ISBN : 9783867273732

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Modeling hardening and softening due to high-angle grain boundaries in crystalline solids by Xiaohui Zeng Pdf

Author : Louisette Priester
Publisher : John Wiley & Sons
Page : 240 pages
File Size : 55,5 Mb
Release : 2013-02-07
Category : Technology & Engineering
ISBN : 9781118603109

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Grain Boundaries and Crystalline Plasticity by Louisette Priester Pdf

The main purpose of this book is to put forward the fundamental role of grain boundaries in the plasticity of crystalline materials. To understand this role requires a multi-scale approach to plasticity: starting from the atomic description of a grain boundary and its defects, moving on to the elemental interaction processes between dislocations and grain boundaries, and finally showing how the microscopic phenomena influence the macroscopic behaviors and constitutive laws. It involves bringing together physical, chemical and mechanical studies. The investigated properties are: deformation at low and high temperature, creep, fatigue and rupture.

Author : Peter M. Burgess,A I Pshenichnyuk
Publisher : Elsevier
Page : 328 pages
File Size : 52,7 Mb
Release : 2011-05-31
Category : Science
ISBN : 9780857093837

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Superplasticity and Grain Boundaries in Ultrafine-Grained Materials by Peter M. Burgess,A I Pshenichnyuk Pdf

Superplasticity is a state in which solid crystalline materials, such as some fine-grained metals, are deformed well beyond their usual breaking point. The phenomenon is of importance in processes such as superplastic forming which allows the manufacture of complex, high-quality components in such areas as aerospace and biomedical engineering. Superplasticity and grain boundaries in ultrafine-grained materials discusses a number of problems associated with grain boundaries in metallic polycrystalline materials. The role of grain boundaries in processes such as grain boundary diffusion, relaxation and grain growth is investigated. The authors explore the formation and evolution of the microstructure, texture and ensembles of grain boundaries in materials produced by severe plastic deformation. Written by two leading experts in the field, Superplasticity and grain boundaries in ultrafine-grained materials significantly advances our understanding of this important phenomenon and will be an important reference work for metallurgists and those involved in superplastic forming processes. Discusses significant problems associated with grain boundaries in polycrystals incorporating structural superplasticity and grain boundary sliding Assesses the role of grain boundaries in processes such as grain boundary diffusion, relaxation and grain growth Explores the formation and evolution of the microstructure, texture and ensembles of grain boundaries in materials produced by severe plastic deformation

Author : Alexander P. Zhilyaev,Farid Z. Utyashev,Georgy I. Raab
Publisher : Academic Press
Page : 438 pages
File Size : 46,8 Mb
Release : 2020-11-21
Category : Science
ISBN : 9780128190777

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Superplasticity and Grain Boundaries in Ultrafine-Grained Materials by Alexander P. Zhilyaev,Farid Z. Utyashev,Georgy I. Raab Pdf

Superplasticity and Grain Boundaries in Ultrafine-Grained Materials, Second Edition, provides cutting-edge modeling solutions surrounding the role of grain boundaries in processes such as grain boundary diffusion, relaxation and grain growth. In addition, the book's authors explore the formation and evolution of the microstructure, texture and ensembles of grain boundaries in materials produced by severe plastic deformation. This updated edition, written by leading experts in the field, has been revised to include new chapters on the basics of nanostructure processing, the influence of deformation mechanisms on grain refinement, processing techniques for ultrafine-grained and nanostructured materials, and much more. Provides practical applications and methods for the proper implementation of models, allowing for more effective complex metal forming processes Features new chapters on the microstructure, mechanical behavior and functional properties of HCP metals, processing ultrafine-grained and nanostructured materials, and more Covers experimental assessment and computational modeling techniques for adiabatic heating and saturation of grain refinement during SPD of metals and alloys

Author : Anning Hu
Publisher : Springer Science & Business Media
Page : 441 pages
File Size : 52,5 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781475701814

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The Nature and Behavior of Grain Boundaries by Anning Hu Pdf

In view of the dramatically increased interest in the study of grain boundaries during the past few years, the Physical Metal lurgy Committee of The Institute of Metals Division of The Metal lurgical Society, AIME, sponsored a four-session symposium on the NATURE AND BEHAVIOR OF GRAIN BOUNDARIES, at the TMS-AIME Fall Meeting in Detroit, Michigan, October 18-19, 1971. The main ob jectives of this symposium were to examine the more recent develop ments, theoretical and experimental, in our understanding of grain boundaries, and to stimulate further studies in these and related areas. This volume contains most of the papers presented at the Symposium. It is regrettable that space limitations allow the inclusion of only four of the unsolicited papers, in addition to thirteen invited papers. The papers are grouped into three sections according to their major content: STRUCTURE OF GRAIN BOUNDARIES, ENERGETICS OF GRAIN BOUNDARIES, and GRAIN BOUNDARY MOTION AND RELATED PHENOMENA. Grain boundaries, or crystal interfaces, have been of both academic and practical interest for many years. An early seminar on "Metal Interfaces" was documented in 1952 by ASM. The Fourth Metallurgical Colloquium held in France, 1960, had a broad coverage on "Properties of Grain Boundaries". More recently the Australian Institute of Metals sponsored a conference on interfaces, with the proceedings being published by Butterworths in 1969.

Author : E. S. Yakovleva
Publisher : Unknown
Page : 4 pages
File Size : 45,6 Mb
Release : 1954
Category : Aluminum
ISBN : UOM:39015095114164

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The Role of Grain Boundaries in the Plastic Deformation of Aluminum by E. S. Yakovleva Pdf

Author : Tomasz Tański,Wojciech Borek
Publisher : BoD – Books on Demand
Page : 186 pages
File Size : 52,8 Mb
Release : 2017-01-11
Category : Science
ISBN : 9789535128618

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Study of Grain Boundary Character by Tomasz Tański,Wojciech Borek Pdf

This book contains eight chapters with original and innovative research studies in the field of grain boundaries. The results presented in the chapters of this book are very interesting and inspiring. This book will be very valuable to all researchers who are interested in the influence of grain boundaries on the structure and different kinds of properties of engineering materials. This book is also addressed to students and professional engineers working in the industry as well as to specialists who pay attention to all aspects related to grain boundaries and their impact on the various properties of innovative materials. The chapters of this book were developed by respected and well-known researchers from different countries.

Author : Yu R. Kolobov
Publisher : Cambridge Int Science Publishing
Page : 247 pages
File Size : 45,6 Mb
Release : 2007
Category : Technology & Engineering
ISBN : 9781904602170

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Grain Boundary Diffusion and Properties of Nanostructured Materials by Yu R. Kolobov Pdf

The authors examine the main relationships of the process of grain boundary diffusion in bicrystals, coarse-grained polycrystals and nanostructured materials. The results of investigations of diffusion-related processes of recovery, recystallisation and development of plastic deformation in creep, static and cyclic loading in bulk nanostructured materials produced by high-intensity plastic deformation are presented.

Author : Kozo Ishizaki,K. Niihara,M. Isotani,R.G. Ford
Publisher : Springer Science & Business Media
Page : 313 pages
File Size : 41,7 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9789401118781

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Grain Boundary Controlled Properties of Fine Ceramics by Kozo Ishizaki,K. Niihara,M. Isotani,R.G. Ford Pdf

Selected papers presented at the International Workshop on Fine Ceramics 92, Materials Processing and Design through Better Control of Grain Boundaries: Emphasizing Fine Ceramics, held in Nagoya, Japan, 12-13 March 1992.

Author : F.J. Humphreys,M. Hatherly
Publisher : Elsevier
Page : 520 pages
File Size : 48,5 Mb
Release : 2012-12-02
Category : Technology & Engineering
ISBN : 9780080983882

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Recrystallization and Related Annealing Phenomena by F.J. Humphreys,M. Hatherly Pdf

The annealing of deformed materials is of both technological importance and scientific interest. The phenomena have been most widely studied in metals, although they occur in all crystalline materials such as the natural deformation of rocks and the processing of technical ceramics. Research is mainly driven by the requirements of industry, and where appropriate, the book discusses the extent to which we are able to formulate quantitative, physically-based models which can be applied to metal-forming processes. The subjects treated in this book are all active research areas, and form a major part of at least four regular international conference series. However, there have only been two monographs published in recent times on the subject of recrystallization, the latest nearly 20 years ago. Since that time, considerable advances have been made, both in our understanding of the subject and in the techniques available to the researcher. The book covers recovery, recrystallization and grain growth in depth including specific chapters on ordered materials, two-phase alloys, annealing textures and annealing during and after hot working. Also contained are treatments of the deformed state and the structure and mobility of grain boundaries, technologically important examples and a chapter on computer simulation and modelling. The book provides a scientific treatment of the subject for researchers or students in Materials Science, Metallurgy and related disciplines, who require a more detailed coverage than is found in textbooks on physical metallurgy, and a more coherent treatment than will be found in the many conference proceedings and review articles.

Author : Arthur W. Mullendore
Publisher : Unknown
Page : 50 pages
File Size : 48,8 Mb
Release : 1960
Category : Aluminum-magnesium alloys
ISBN : CORNELL:31924004661496

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Void Formation and Grain Boundary Sliding in Aluminum-magnesium Solid Solution Alloys by Arthur W. Mullendore Pdf

Author : Christoph Günster
Publisher : Cuvillier Verlag
Page : 174 pages
File Size : 52,9 Mb
Release : 2013-06-05
Category : Science
ISBN : 9783736944312

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Magnetically and Capillary Driven Grain Boundary Motion in Zinc Bicrystals by Christoph Günster Pdf

In der vorliegenden Dissertation wurden neue Erkenntnisse auf dem Gebiet der experimentellen Erforschung der Korngrenzenbewegung vorgestellt. Im Rahmen der Arbeit wurde anhand von in-situ Messungen mittels einer eigens dazu entwickelten Polarisationsmikroskopiesonde mit integriertem Heiztisch die Abhängigkeit der Korngrenzenbeweglichkeit vom Desorientierungs- und Inklinationswinkel der Korngrenze, sowie der Temperatur an speziell gezüchteten Bikristallen aus 99,995% Zink mit symmetrischen und asymmetrischen Kippkorngrenzen und gemischten Korngrenzen im Temperaturbereich zwischen 330°C und 415°C in Hochmagnetfeldern von 10 bis 28 Tesla Stärke als Triebkraft untersucht. Dabei wurde die jeweilige Wanderungsgeschwindigkeit v der Korngrenzen bei verschiedenen Temperaturen und treibenden Kräften gemessen. Aus den so erhaltenen Messdaten wurden die Aktivierungsparameter der Korngrenzenbewegung für die jeweils untersuchte Korngrenze bestimmt.Weiter wurde im Rahmen der Experimente in Hochfeldmagneten gezeigt, dass die Polarisationsmikroskopiesonde zur Bestimmung der Korngrenzenenergie in magnetisch anisotropen Metallen verwendet werden kann. Zu kleinerem Anteil wurden auch Versuche zu krümmungsgetriebener Korngrenzenbewegung durchgeführt. Alle Ergebnisse zeigten eine starke Inklinations- und Desorientierungsabhängigkeit der Korngrenzenbeweglichkeit, wobei für asymmetrische Korngrenzen höhere Aktivierungsparameter ermittelt wurden als für symmetrische. Dies wurde auf Unterschiede zwischen der atomistischen Struktur von asymmetrischen und symmetrischen Korngrenzen zurückgeführt. Weiterhin wurde auch die Auswirkung einer Glühung im Hochmagnetfeld auf Textur- und Mikrostrukturentwicklung von Zinkpolykristallen untersucht, wobei gezeigt wurde, dass das Magnetfeld ein geeignetes Werkzeug zur Beeinflussung der Mikrostruktur in Zink ist.