Nanostructured Materials by High Pressure Severe Plastic Deformation

Author: Yuntian T. Zhu
Publisher: Springer Science & Business Media
ISBN: 1402039239
Format: PDF, Kindle
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Recently, it was reported that nanostructured materials processed under high pressure by HPT and ECAP have an extraordinary combination of both high strength and high ductility, which are two desirable, but rarely co-existing properties. These findings indicate that high-pressure is a critical factor that can be employed to process nanostructured materials with superior mechanical, and possibly also physical, properties. It is the objective of this workshop to review our current knowledge, identify issues for future research, and discuss future directions on the processing and properties of nanostructured materials via SPD techniques, with a special emphasis on high-pressure effects. The 42 peer-reviewed papers in this book cover areas of high pressure effect on the nanostructure and properties of SPD-processed materials, fundamentals of nanostructured materials, development of high-pressure SPD technologies for commercializations, recent advances of SPD technologies as well as applications and future markets of SPD-processed nanostructured materials.

Bulk Nanostructured Materials

Author: Michael J. Zehetbauer
Publisher: John Wiley & Sons
ISBN: 3527626905
Format: PDF, Docs
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The processing and mechanical behaviour of bulk nanostructured materials are one of the most interesting new fields of research on advanced materials systems. Many nanocrystalline materials possess very high strength with still good ductility, and exhibit high values of fatigue resistance and fracture toughness. There has been continuing interest in these nanomaterials for use in structural and biomedical applications, and this has led to a large number of research programs worldwide. This book focuses on the processing techniques, microstructures, mechanical and physical properties, and applications of bulk nanostructured materials, as well as related fundamental issues. Only since recently can such bulk nanostructured materials be produced in large bulk dimensions, which opens the door to their commercial applications.

Nanocrystalline Titanium

Author: Halina Garbacz
Publisher: Elsevier
ISBN: 0128146001
Format: PDF, ePub
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Nanocrystalline Titanium discusses the features of nanocrystalline titanium production by various SPD methods, also comparing their microstructure and properties. The authors characterize the physical, chemical and mechanical properties of ultrafine grained titanium, indicating which are crucial for their application. Titanium alloys are characterized by high specific strength combined with excellent corrosion resistance, whereas the mechanical properties of pure (or commercial purity - CP) titanium are much lower. SPD methods are proving to be an effective way to increase strength, even to a level typical for structural titanium alloys. This book is useful for academics and professionals studying the behavior of metallic materials. Discusses various SPD techniques and their applications for titanium Previews the limitations of SPD methods for titanium, along with the problems that can be encountered during production Characterizes the physical, chemical and mechanical properties of ultrafine grained titanium and indicates which are crucial for its production applications

Metallic Materials with High Structural Efficiency

Author: Oleg N. Senkov
Publisher: Springer Science & Business Media
ISBN: 1402021127
Format: PDF, Docs
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In the fall of 1998, Prof. Sergey Firstov invited me to the Frantcevych Institute for Problems of Materials Science (IPMS) in Kyiv, Ukraine to discuss possible collaborations in the area of advanced metals research. During this visit, a strong mutual interest was evident in a broad range of structural metals technologies, and a quick friendship was established. Countless subsequent emails and a reciprocal visit to the U. S Air Force Research Laboratory by Prof. Firstov and a team of scientists from IPMS ensued to discuss and detail a broad collaboration in the area of structural metals. Two years after the initial visit, a major investment by the U. S. Air Force Office of Scientific Research (AFOSR) was established to pursue the technologies defined by these interactions. The annual reviews of the AFOSR Ukrainian Metals Initiative were held in late May, a most beautiful time in Kyiv when the lilacs are in bright display and the air is scented with the smell of falling blossoms from the chestnut trees that line the major streets and many parks. The sunny days and mild evenings provide a welcome break from winter, and on weekend evenings festive crowds spill onto the Khreshchatyk, Kyiv’s downtown boulevard, to listen to street musicians, watch jugglers and comedians, or simply to celebrate with friends. The annual reviews featured long days of intensive discussion of technical progress, followed in the evenings by the warm hospitality of the Ukrainian hosts.

Superplasticity in Advanced Materials

Author: K. F. Zhang
Publisher: Trans Tech Publication
ISBN:
Format: PDF, ePub
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Covering the phenomenon of superplasticity, this volume includes chapters such as: Plenary Session, Advanced Industrial Applications, Processing Methods, Material Processing for Superplasticity, Superplasticity in Light Metals, Product Design and Numerical Simulation, Mechanisms of Grain Boundary Sliding and Failure, and Superplasticity in Metals.

Nanotechnological Basis for Advanced Sensors

Author: Johann Peter Reithmaier
Publisher: Springer Science & Business Media
ISBN: 9400709021
Format: PDF, ePub, Mobi
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Bringing together experts from 15 countries, this book is based on the lectures and contributions of the NATO Advanced Study Institute on “Nanotechnological Basis for Advanced Sensors” held in Sozopol, Bulgaria, 30 May - 11 June, 2010. It gives a broad overview on this topic, and includes articles on: techniques for preparation and characterization of sensor materials; different types of nanoscaled materials for sensor applications, addressing both their structure (nanoparticles, nanocomposites, nanostructured films, etc.) and chemical nature (carbon-based, oxides, glasses, etc.); and on advanced sensors that exploit nanoscience and nanotechnology. In addition, the volume represents an interdisciplinary approach with authors coming from diverse fields such as physics, chemistry, engineering, materials science and biology. A particular strength of the book is its combination of longer papers, introducing the basic knowledge on a certain topic, and brief contributions highlighting special types of sensors and sensor materials.

Handbook of Mechanical Nanostructuring

Author: Mahmood Aliofkhazraei
Publisher: John Wiley & Sons
ISBN: 3527674969
Format: PDF, ePub, Mobi
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Providing in-depth information on how to obtain high-performance materials by controlling their nanostructures, this ready reference covers both the bottom-up and the top-down approaches to the synthesis and processing of nanostructured materials. The focus is on advanced methods of mechanical nanostructuring such as severe plastic deformation, including high pressure torsion, equal channel angular processing, cyclic extrusion compression, accumulative roll bonding, and surface mechanical attrition treatment. As such, the contents are inherently application-oriented, with the methods presented able to be easily integrated into existing production processes. In addition, the structure-property relationships and ways of influencing the nanostructure in order to exhibit a desired functionality are reviewed in detail. The whole is rounded off by a look at future directions, followed by an overview of applications in various fields of structural and mechanical engineering. With its solutions for successful processing of complex-shaped workpieces and large-scale specimens with desired properties, this is an indispensable tool for purposeful materials design.

Investigations and Applications of Severe Plastic Deformation

Author: Terry Lowe
Publisher: Springer Science & Business Media
ISBN: 9401140626
Format: PDF, ePub
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Material processing techniques that employ severe plastic deformation have evolved over the past decade, producing metals, alloys and composites having extraordinary properties. Variants of SPD methods are now capable of creating monolithic materials with submicron and nanocrystalline grain sizes. The resulting novel properties of these materials has led to a growing scientific and commercial interest in them. They offer the promise of bulk nanocrystalline materials for structural; applications, including nanocomposites of lightweight alloys with unprecedented strength. These materials may also enable the use of alternative metal shaping processes, such as high strain rate superplastic forming. Prospective applications for medical, automotive, aerospace and other industries are already under development.