Dynamique de formation de la microstructure de solidification d' alliages métalliques : caractérisation par imagerie synchrotron

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ISBN 13 :
Total Pages : 199 pages
Book Rating : 4.:/5 (492 download)

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Book Synopsis Dynamique de formation de la microstructure de solidification d' alliages métalliques : caractérisation par imagerie synchrotron by : Guillaume Reinhart

Download or read book Dynamique de formation de la microstructure de solidification d' alliages métalliques : caractérisation par imagerie synchrotron written by Guillaume Reinhart and published by . This book was released on 2006 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nous avons étudié in situ et en temps réel la solidification dirigée d’échantillons minces d’alliages binaires et d’un quasicristal en combinant radiographie et topographie X. Sur Al-3,5%pdsNi non-affiné, nous avons étudié la formation de l’état initial et la morphologie du front de solidification (croissance cellulaire puis dendritique). Les effets des contraintes mécaniques ont été mis en évidence. La transition colonnaire–équiaxe a été étudiée sur Al-3,5%pdsNi affiné. Nous avons décrit le blocage du front colonnaire et le régime de croissance équiaxe ultérieure. L’efficacité des affinants tend vers une limite. Une analyse de la morphologie des microstructures a été effectuée. L’étude du quasicristal i-AlPdMn montre la croissance de grains dodécaédriques facettés. Nous avons mis en évidence les effets de la convection thermosolutale. La visualisation des contraintes montre une forte déformation des grains. L’apparition de porosités a été observée au cours de la fusion des grains.

Application de la radiographie X synchrotron à la caractérisation de la microstructure de solidification d'alliages métalliques

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ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.:/5 (836 download)

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Book Synopsis Application de la radiographie X synchrotron à la caractérisation de la microstructure de solidification d'alliages métalliques by : Abdoul-Aziz Bogno

Download or read book Application de la radiographie X synchrotron à la caractérisation de la microstructure de solidification d'alliages métalliques written by Abdoul-Aziz Bogno and published by . This book was released on 2011 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Une étude expérimentale systématique de la formation des microstructures de solidification d’alliages métalliques (Al-Cu) a été effectuée par application de la radiographie X synchrotron. La radiographie X-Synchrotron nous a donné accès à des observations in situ et en temps réel qui nous ont permis d’analyser de manière quantitative les phénomènes physiques impliqués au cours de la solidification (vitesse de croissance, redistribution du soluté, interaction entre grains équiaxes etc.). Elle nous a également permis de mettre en évidence l’influence de la convection naturelle et de la gravité sur ces différents paramètres physiques et par conséquent sur la formation de la microstructure de solidification. Nous avons comparé nos résultats expérimentaux avec des modèles de prédiction de la croissance dendritique et ensuite avons montré l’intérêt des expériences en microgravité. Nous avons enfin effectué des séries de tests du dispositif expérimental conçu et développé par SSC (Swedish Space Corporation) dans le cadre du projet XRMON (In situ X-Ray MONitoring of advanced metallurgical processes under microgravity and terrestrial conditions) de l'ESA-MAP en vue d’une expérience in situ et en temps réel de solidification en microgravité à bord d’une fusée sonde Maser12. Cette expérience prévue en Novembre 2011. Les résultats obtenus lors des séries de tests valident le dit dispositif en termes de comportement thermique et d’imagerie X par radiographie.

Solidification d'alliages métalliques : caractérisation par imagerie X - synchrotron

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ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.:/5 (758 download)

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Book Synopsis Solidification d'alliages métalliques : caractérisation par imagerie X - synchrotron by : Henri Nguyen Thi

Download or read book Solidification d'alliages métalliques : caractérisation par imagerie X - synchrotron written by Henri Nguyen Thi and published by . This book was released on 2010 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Magnesium Technology 2017

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Publisher : Springer
ISBN 13 : 3319523929
Total Pages : 642 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis Magnesium Technology 2017 by : Kiran N. Solanki

Download or read book Magnesium Technology 2017 written by Kiran N. Solanki and published by Springer. This book was released on 2017-02-14 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Magnesium Technology Symposium, the event on which this collection is based, is one of the largest yearly gatherings of magnesium specialists in the world. Papers represent all aspects of the field, ranging from primary production to applications to recycling. Moreover, papers explore everything from basic research findings to industrialization. Magnesium Technology 2017 covers a broad spectrum of current topics, including alloys and their properties; cast products and processing; wrought products and processing; forming, joining, and machining; corrosion and surface finishing; ecology; and structural applications. In addition, there is coverage of new and emerging applications.

Modeling of Casting, Welding, and Advanced Solidification Processes

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Publisher : Wiley-TMS
ISBN 13 : 9780873397421
Total Pages : 0 pages
Book Rating : 4.3/5 (974 download)

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Book Synopsis Modeling of Casting, Welding, and Advanced Solidification Processes by : Steve L. Cockcroft

Download or read book Modeling of Casting, Welding, and Advanced Solidification Processes written by Steve L. Cockcroft and published by Wiley-TMS. This book was released on 2009-06-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings encapsulate the progress made in modeling casting processes and liquid-solid phase transformations over the years. The papers presented provide a clear picture of the modeling activities for processes involving solidification, covering continuous casting, welding, remelting, semi-solid, and shape and ingot casting processes. Other topics related to casting technologies, such as liquid metal treatment and casting tools (e.g., mold manufacturing and life time), are also examined. These proceedings bring together leading academic research that brings up to date information from the industry. Classical studies of structure and segregation formed upon solidification as well as new in-situ observation techniques are addressed. A collection of papers from the 12th International Conference held in Vancouver, British Columbia June 7th-14th, 2009.

Generalized Continua as Models for Classical and Advanced Materials

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Publisher : Springer
ISBN 13 : 3319317210
Total Pages : 456 pages
Book Rating : 4.3/5 (193 download)

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Book Synopsis Generalized Continua as Models for Classical and Advanced Materials by : Holm Altenbach

Download or read book Generalized Continua as Models for Classical and Advanced Materials written by Holm Altenbach and published by Springer. This book was released on 2016-04-15 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is devoted to an actual topic which is the focus world-wide of various research groups. It contains contributions describing the material behavior on different scales, new existence and uniqueness theorems, the formulation of constitutive equations for advanced materials. The main emphasis of the contributions is directed on the following items - Modelling and simulation of natural and artificial materials with significant microstructure, - Generalized continua as a result of multi-scale models, - Multi-field actions on materials resulting in generalized material models, - Theories including higher gradients, and - Comparison with discrete modelling approaches

Generalized Models and Non-classical Approaches in Complex Materials 1

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Publisher : Springer
ISBN 13 : 3319724401
Total Pages : 799 pages
Book Rating : 4.3/5 (197 download)

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Book Synopsis Generalized Models and Non-classical Approaches in Complex Materials 1 by : Holm Altenbach

Download or read book Generalized Models and Non-classical Approaches in Complex Materials 1 written by Holm Altenbach and published by Springer. This book was released on 2018-03-24 with total page 799 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first of 2 special volumes dedicated to the memory of Gérard Maugin. Including 40 papers that reflect his vast field of scientific activity, the contributions discuss non-standard methods (generalized model) to demonstrate the wide range of subjects that were covered by this exceptional scientific leader. The topics range from micromechanical basics to engineering applications, focusing on new models and applications of well-known models to new problems. They include micro–macro aspects, computational endeavors, options for identifying constitutive equations, and old problems with incorrect or non-satisfying solutions based on the classical continua assumptions.

Generalized Continua - from the Theory to Engineering Applications

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Publisher : Springer Science & Business Media
ISBN 13 : 3709113709
Total Pages : 403 pages
Book Rating : 4.7/5 (91 download)

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Book Synopsis Generalized Continua - from the Theory to Engineering Applications by : Holm Altenbach

Download or read book Generalized Continua - from the Theory to Engineering Applications written by Holm Altenbach and published by Springer Science & Business Media. This book was released on 2012-10-18 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: On the roots of continuum mechanics in differential geometry -- a review.- Cosserat media.- Cosserat-type shells.- Cosserat-type rods.- Micromorphic media.- Electromagnetism and generalized continua.- Computational methods for generalized continua. The need of generalized continua models is coming from practice. Complex material behavior sometimes cannot be presented by the classical Cauchy continua. At present the attention of the scientists in this field is focused on the most recent research items • new models, • application of well-known models to new problems, • micro-macro aspects, • computational effort, and • possibilities to identify the constitutive equations The new research directions are discussed in this volume - from the point of view of modeling and simulation, identification, and numerical methods.

Mesoscale Models

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Publisher : Springer
ISBN 13 : 3319941860
Total Pages : 348 pages
Book Rating : 4.3/5 (199 download)

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Book Synopsis Mesoscale Models by : Sinisa Mesarovic

Download or read book Mesoscale Models written by Sinisa Mesarovic and published by Springer. This book was released on 2018-11-19 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book helps to answer the following questions: How far have the understanding and mesoscale modeling advanced in recent decades, what are the key open questions that require further research and what are the mathematical and physical requirements for a mesoscale model intended to provide either insight or a predictive engineering tool? It is addressed to young researchers including doctoral students, postdocs and early career faculty,

ECCOMAS 2012 : September 10 - 14, 2012, Vienna, Austria ; proceedings of the 6th European Congress on Computational Methods in Applied Sciences and Engineering

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ISBN 13 : 9783950248197
Total Pages : pages
Book Rating : 4.2/5 (481 download)

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Book Synopsis ECCOMAS 2012 : September 10 - 14, 2012, Vienna, Austria ; proceedings of the 6th European Congress on Computational Methods in Applied Sciences and Engineering by : European Congress on Computational Methods in Applied Sciences and Engineering

Download or read book ECCOMAS 2012 : September 10 - 14, 2012, Vienna, Austria ; proceedings of the 6th European Congress on Computational Methods in Applied Sciences and Engineering written by European Congress on Computational Methods in Applied Sciences and Engineering and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Mechanics of Strain Gradient Materials

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Publisher : Springer Nature
ISBN 13 : 3030438309
Total Pages : 177 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Mechanics of Strain Gradient Materials by : Albrecht Bertram

Download or read book Mechanics of Strain Gradient Materials written by Albrecht Bertram and published by Springer Nature. This book was released on 2020-06-30 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past 50 years, strain gradient material theories have been developed for the continuum modeling of size effects in materials and structures in terms of their elasticity, plasticity and fracturing. This book puts forward a unifying perspective to combine existing theories involving the higher order gradient of the strain tensor, or of plastic strain. It begins by reviewing experimental findings on the existence (or non-existence) of size effects on the mechanics of materials. In turn, the book devises first, second and higher order strain gradient theories from general principles, and presents constitutive frameworks that satisfy thermodynamic requirements. The special case of strain gradient plasticity is then developed and illustrated via computational analyses of size effects on the plasticity of metals at small scales. In closing, the book explains the origin of gradient effects in the case of lattice structures by drawing on homogenization theory.

Multiscale Methods in Computational Mechanics

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Publisher : Springer Science & Business Media
ISBN 13 : 9048198097
Total Pages : 451 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Multiscale Methods in Computational Mechanics by : René de Borst

Download or read book Multiscale Methods in Computational Mechanics written by René de Borst and published by Springer Science & Business Media. This book was released on 2010-10-09 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work gives a modern, up-to-date account of recent developments in computational multiscale mechanics. Both upscaling and concurrent computing methodologies will be addressed for a range of application areas in computational solid and fluid mechanics: Scale transitions in materials, turbulence in fluid-structure interaction problems, multiscale/multilevel optimization, multiscale poromechanics. A Dutch-German research group that consists of qualified and well-known researchers in the field has worked for six years on the topic of computational multiscale mechanics. This text provides a unique opportunity to consolidate and disseminate the knowledge gained in this project. The addition of chapters written by experts outside this working group provides a broad and multifaceted view of this rapidly evolving field.

Generalized Continua as Models for Materials

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Publisher : Springer Science & Business Media
ISBN 13 : 3642363946
Total Pages : 336 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Generalized Continua as Models for Materials by : Holm Altenbach

Download or read book Generalized Continua as Models for Materials written by Holm Altenbach and published by Springer Science & Business Media. This book was released on 2014-07-08 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents contributions describing the micro- and macro-behaviours, new existence and uniqueness theorems, the formulation of multi-scale problems, etc. and now it is time to ponder again the state of matter and to discuss new trends and applications. The main focus is directed on the following items - Modelling and simulation of materials with significant microstructure, - Generalized continua as a result of multi-scale models, - Multi-field actions on materials resulting in generalized material models, and - Comparison with discrete modelling approaches

Mechanics of Generalized Continua

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Publisher : Springer Science & Business Media
ISBN 13 : 1441956956
Total Pages : 337 pages
Book Rating : 4.4/5 (419 download)

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Book Synopsis Mechanics of Generalized Continua by : Gérard A. Maugin

Download or read book Mechanics of Generalized Continua written by Gérard A. Maugin and published by Springer Science & Business Media. This book was released on 2010-03-24 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: In their 1909 publication Théorie des corps déformables, Eugène and François Cosserat made a historic contribution to materials science by establishing the fundamental principles of the mechanics of generalized continua. The chapters collected in this volume showcase the many areas of continuum mechanics that grew out of the foundational work of the Cosserat brothers. The included contributions provide a detailed survey of the most recent theoretical developments in the field of generalized continuum mechanics and can serve as a useful reference for graduate students and researchers in mechanical engineering, materials science, applied physics and applied mathematics.

EMMC2

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ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis EMMC2 by : A. Bertram

Download or read book EMMC2 written by A. Bertram and published by . This book was released on 1998 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Continuum Thermomechanics

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Publisher : Springer Science & Business Media
ISBN 13 : 0306469464
Total Pages : 428 pages
Book Rating : 4.3/5 (64 download)

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Book Synopsis Continuum Thermomechanics by : Gérard A. Maugin

Download or read book Continuum Thermomechanics written by Gérard A. Maugin and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributed by world-renowned specialists on the occasion of Paul Germain's 80th birthday, this unique book reflects the foundational works and the intellectual influence of this author. It presents the realm of modern thermomechanics with its extraordinary wealth of applications to the behaviour of materials, whether solid or fluid. The thirty-one contributions follow an easygoing autobiographical sketch by Paul Germain, and highlight the power and richness of a methodological approach to the phenomenology of many materials. This approach combines harmoniously thermodynamics and continuum theory in order to provide exploitable, thermodynamically admissible models of a large variety of behaviours and phenomena, including those of diffusion, thermoelasticity, viscoplasticity, relaxation, hysteresis, wetting, shape-memory effects, growth, phase transitions, stability, fracture, shocks, machining of materials, microstructured solids, complex fluids, etc. Especially aimed at graduate students, researchers, and engineers in mechanical engineering and materials science, this book also presents the state of the art in an active field of research and opens new horizons in other scientific fields, such as applied mathematics and applied physics, because of the intellectual satisfaction and remarkable efficiency provided by the advocated approach.

Physical Aspects of Fracture

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Publisher : Boom Koninklijke Uitgevers
ISBN 13 : 9780792371472
Total Pages : 388 pages
Book Rating : 4.3/5 (714 download)

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Book Synopsis Physical Aspects of Fracture by : Elisabeth Bouchaud

Download or read book Physical Aspects of Fracture written by Elisabeth Bouchaud and published by Boom Koninklijke Uitgevers. This book was released on 2001-08-31 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the NATO Advanced Study Institute, Cargèse, France, 5-17 June 2000