Author: G. Malcolm Stocks
Publisher: Mrs Proceedings
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 488
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Book Description
The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners.
Author: Patrice E.A. Turchi
Publisher: Springer Science & Business Media
ISBN: 1461524768
Category : Science
Languages : en
Pages : 725
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Book Description
The study of phase transformations in substitutional alloys, including order disorder phenomena and structural transformations, plays a crucial role in understanding the physical and mechanical properties of materials, and in designing alloys with desired technologically important characteristics. Indeed, most of the physical properties, including equilibrium properties, transport, magnetic, vibrational as well as mechanical properties of alloys are often controlled by and are highly sensitive to the existence of ordered compounds and to the occurrence of structural transformations. Correspondingly, the alloy designer facing the task of processing new high-performance materials with properties that meet specific industrial applications must answer the following question: What is the crystalline structure and the atomic configuration that an alloy may exhibit at given temperature and concentration? Usually the answer is sought in the phase-diagram of a relevant system that is often determined experimentally and does not provide insight to the underlying mechanisms driving phase stability. Because of the rather tedious and highly risky nature of developing new materials through conventional metallurgical techniques, a great deal of effort has been expended in devising methods for understanding the mechanisms contrOlling phase transformations at the microscopic level. These efforts have been bolstered through the development of fully ab initio, accurate theoretical models, coupled with the advent of new experimental methods and of powerful supercomputer capabilities.
Author: A. Gonis
Publisher: Springer Science & Business Media
ISBN: 1461303850
Category : Science
Languages : en
Pages : 742
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Book Description
Engineering materials with desirable physical and technological properties requires understanding and predictive capability of materials behavior under varying external conditions, such as temperature and pressure. This immediately brings one face to face with the fundamental difficulty of establishing a connection between materials behavior at a microscopic level, where understanding is to be sought, and macroscopic behavior which needs to be predicted. Bridging the corresponding gap in length scales that separates the ends of this spectrum has been a goal intensely pursued by theoretical physicists, experimentalists, and metallurgists alike. Traditionally, the search for methods to bridge the length scale gap and to gain the needed predictive capability of materials properties has been conducted largely on a trial and error basis, guided by the skill of the metallurgist, large volumes of experimental data, and often ad hoc semi phenomenological models. This situation has persisted almost to this day, and it is only recently that significant changes have begun to take place. These changes have been brought about by a number of developments, some of long standing, others of more recent vintage.
Author: C.T. Liu
Publisher: Springer Science & Business Media
ISBN: 9401125341
Category : Technology & Engineering
Languages : en
Pages : 692
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Book Description
Ordered intermetallics constitute a unique class of metallic materials which may be developed as new-generation materials for structural use at high temperatures in hostile environments. At present, there is a worldwide interest in intermetallics, and extensive efforts have been devoted to intermetallic research and development in the U.S., Japan, European countries, and other nations. As a result, significant advances have been made in all areas of intermetallic research. This NATO Advanced Workshop on ordered intermetallics (1) reviews the recent progress, and (2) assesses the future direction of intermetallic research in the areas of electronic structure and phase stability, deformation and fracture, and high-temperature properties. The book is divided into six parts: (1) Electronic Structure and Phase Stability; (2) Deformation and Dislocation Structures; (3) Ductility and Fracture; (4) Kinetic Processes and Creep Behavior; (5) Research Programs and Highlights; and (6) Assessment of Current Research and Recommendation for Future Work. The first four parts review the recent advances in the three focus areas. The fifth part provides highlights of the intermetallic research under major programs and in different institutes and countries. The last part provides a forum for the discussion of research areas for future studies.
Author: Frank R.N. Nabarro
Publisher: Elsevier
ISBN: 0080535313
Category : Science
Languages : en
Pages : 633
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Book Description
Dislocations are lines of irregularity in the structure of a solid analogous to the bumps in a badly laid carpet. Like these bumps, they can be easily moved, and they provide the most important mechanism by which the solid can be deformed. They also have a strong influence on crystal growth and on the electronic properties of semiconductors.
Author: George E. Totten
Publisher: CRC Press
ISBN: 1351045628
Category : Science
Languages : en
Pages : 2957
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Book Description
This encyclopedia, written by authoritative experts under the guidance of an international panel of key researchers from academia, national laboratories, and industry, is a comprehensive reference covering all major aspects of metallurgical science and engineering of aluminum and its alloys. Topics covered include extractive metallurgy, powder metallurgy (including processing), physical metallurgy, production engineering, corrosion engineering, thermal processing (processes such as metalworking and welding, heat treatment, rolling, casting, hot and cold forming), surface engineering and structure such as crystallography and metallography.
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 464
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Book Description
Author: Li Lü
Publisher: Springer Science & Business Media
ISBN: 9780792380665
Category : Technology & Engineering
Languages : en
Pages : 302
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Book Description
Mechanical alloying (or mechanical milling) was invented in the 1970's as a method to develop dispersion-strengthened high temperature alloys with unique properties. With the discovery of formation of amorphous alloys using this technique, it has received new research interest in developing different material systems. Potential applications of this technique have been demonstrated in different areas of materials research. This book is intended as an introduction to mechanical alloying technique used in difference areas. This book contains basic information on the preparation of materials using the mechanical alloying technique. It is useful not only to undergraduate and post-graduate students, but also to scientists and engineers who wish to gain some understanding on the basic process and mechanisms of the process. The book begins with a brief introduction to provide a historical background understanding to the development of the mechanical alloying process. The experimental set-up in the alloying process is important. Currently there are different types of ball mills available. Some of them are specially designed for mechanical alloying process. Since the resultant materials are milling intensity and milling temperature dependent, ball mills should be carefully selected in order to obtain the desired materials and structures. This is discussed in chapter 2. The actual mechanical alloying process is being considered in Chapter 3. As it is essential to understand the use of processing control agents, the physical properties of some commonly used processing control agents are listed.
Author: A. K. Tyagi
Publisher: Elsevier
ISBN: 0128014423
Category : Technology & Engineering
Languages : en
Pages : 872
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Book Description
Materials Under Extreme Conditions: Recent Trends and Future Prospects analyzes the chemical transformation and decomposition of materials exposed to extreme conditions, such as high temperature, high pressure, hostile chemical environments, high radiation fields, high vacuum, high magnetic and electric fields, wear and abrasion related to chemical bonding, special crystallographic features, and microstructures. The materials covered in this work encompass oxides, non-oxides, alloys and intermetallics, glasses, and carbon-based materials. The book is written for researchers in academia and industry, and technologists in chemical engineering, materials chemistry, chemistry, and condensed matter physics. - Describes and analyzes the chemical transformation and decomposition of a wide range of materials exposed to extreme conditions - Brings together information currently scattered across the Internet or incoherently dispersed amongst journals and proceedings - Presents chapters on phenomena, materials synthesis, and processing, characterization and properties, and applications - Written by established researchers in the field
Author: Mel Schwartz
Publisher: CRC Press
ISBN: 9781566763141
Category : Technology & Engineering
Languages : en
Pages : 304
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Book Description
From the Author's Preface The rapid advances in Materials Science and Engineering . . . have convinced many that the design, production and use of advanced materials will shape future manufacturing industries. Competitive advantage within entire industries is shaped by the quality of the materials available to the manufacturers; the early availability of a new material can be leveraged manyfold. In addition, advanced materials or advanced materials processing can signal the birth or death of entire industries, and access to higher quality and lower cost material has permitted some countries to obtain market dominance in several key industries. Much of the new strategy entails harnessing the potential of innovative technology, that is, going back to the nano and molecular states of materials and new, effective ways to create, process, and eventually use them. Rather than being concerned with a relatively small number of generic materials, each possessing a broad range of uses, the materials sector is increasingly concerned with tailoring a growing list of ever more specialized materials for narrow niche applications. New products with better growth prospects such as high-performance alloys, composites, laminates, and a variety of coatings have been emphasized. Materials firms also have sought ways to overcome the weaknesses of ceramics and fully exploit their formidable strengths. "Functional materials" that do more than support structures have been developed for use in sophisticated electronic, optical, magnetic, and biotech applications. This book will . . . show what materials will be available in the next decade or two, in addition to those currently available and their effect on material design, start-up, and production processes.
