Theory And Modeling Of Microstructural Evolution In Polycrystalline Materials

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Theory and Modeling of Microstructural Evolution in Polycrystalline Materials

Author : Ning Ma
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (64 download)

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Book Synopsis Theory and Modeling of Microstructural Evolution in Polycrystalline Materials by : Ning Ma

Download or read book Theory and Modeling of Microstructural Evolution in Polycrystalline Materials written by Ning Ma and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: To accurately predict microstructure evolution and, hence, to synthesis metal and ceramic alloys with desirable properties involves many fundamental as well as practical issues. In the present study, novel theoretical and phase field approaches have been developed to address some of these issues including solute drag and segregation transition at grain boundaries and dislocations, grain growth in systems of anisotropic boundary properties, and precipitate microstructure development in polycrystalline materials. The segregation model has allowed for the prediction of a first-order segregation transition, which could be related to the sharp transition of solute concentration of grain boundary as a function of temperature. The incorporating of interfacial energy and mobility as functions of misorientation and inclination in the phase field model has allowed for the study of concurrent grain growth and texture evolution. The simulation results were analyzed using the concept of local grain boundary energy density, which simplified significantly the development of governing equations for texture controlled grain growth in Ti-6Al-4V. Quantitative phase field modeling techniques have been developed by incorporating thermodynamic and diffusivity databases. The models have been validated against DICTRA simulations in simple 1D problems and applied to simulate realistic microstructural evolutions in Ti-6Al-4V, including grain boundary a and globular a growth and sideplate development under both isothermal aging and continuous cooling conditions. The simulation predictions agree well with experimental observations.

Computational Materials Engineering

Author : Koenraad George Frans Janssens
Publisher : Academic Press
ISBN 13 : 0080555497
Total Pages : 359 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis Computational Materials Engineering by : Koenraad George Frans Janssens

Download or read book Computational Materials Engineering written by Koenraad George Frans Janssens and published by Academic Press. This book was released on 2010-07-26 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational Materials Engineering is an advanced introduction to the computer-aided modeling of essential material properties and behavior, including the physical, thermal and chemical parameters, as well as the mathematical tools used to perform simulations. Its emphasis will be on crystalline materials, which includes all metals. The basis of Computational Materials Engineering allows scientists and engineers to create virtual simulations of material behavior and properties, to better understand how a particular material works and performs and then use that knowledge to design improvements for particular material applications. The text displays knowledge of software designers, materials scientists and engineers, and those involved in materials applications like mechanical engineers, civil engineers, electrical engineers, and chemical engineers. Readers from students to practicing engineers to materials research scientists will find in this book a single source of the major elements that make up contemporary computer modeling of materials characteristics and behavior. The reader will gain an understanding of the underlying statistical and analytical tools that are the basis for modeling complex material interactions, including an understanding of computational thermodynamics and molecular kinetics; as well as various modeling systems. Finally, the book will offer the reader a variety of algorithms to use in solving typical modeling problems so that the theory presented herein can be put to real-world use. Balanced coverage of fundamentals of materials modeling, as well as more advanced aspects of modeling, such as modeling at all scales from the atomic to the molecular to the macro-material Concise, yet rigorous mathematical coverage of such analytical tools as the Potts type Monte Carlo method, cellular automata, phase field, dislocation dynamics and Finite Element Analysis in statistical and analytical modeling

Multi-scale Modeling of Microstructural Evolution in Structural Metallic Systems

Author : Lei Zhao
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (12 download)

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Book Synopsis Multi-scale Modeling of Microstructural Evolution in Structural Metallic Systems by : Lei Zhao

Download or read book Multi-scale Modeling of Microstructural Evolution in Structural Metallic Systems written by Lei Zhao and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic alloys are a widely used class of structural materials, and the mechanical properties of these alloys are strongly dependent on the microstructure. Therefore, the scientific design of metallic materials with superior mechanical properties requires the understanding of the microstructural evolution. Computational models and simulations offer a number of advantages over experimental techniques in the prediction of microstructural evolution, because they can allow studies of microstructural evolution in situ, i.e., while the material is mechanically loaded (meso-scale simulations), and bring atomic-level insights into the microstructure (atomistic simulations). In this thesis, we applied a multi-scale modeling approach to study the microstructural evolution in several metallic systems, including polycrystalline materials and metallic glasses (MGs). Specifically, for polycrystalline materials, we developed a coupled finite element model that combines phase field method and crystal plasticity theory to study the plasticity effect on grain boundary (GB) migration. Our model is not only coupled strongly (i.e., we include plastic driving force on GB migration directly) and concurrently (i.e., coupled equations are solved simultaneously), but also it qualitatively captures such phenomena as the dislocation absorption by mobile GBs. The developed model provides a tool to study the microstructural evolution in plastically deformed metals and alloys. For MGs, we used molecular dynamics (MD) simulations to investigate the nucleation kinetics in the primary crystallization in Al-Sm system. We calculated the time-temperature-transformation curves for low Sm concentrations, from which the strong suppressing effect of Sm solute on Al nucleation and its influencing mechanism are revealed. Also, through the comparative analysis of both Al attachment and Al diffusion in MGs, it has been found that the nucleation kinetics is controlled by interfacial attachment of Al, and that the attachment behavior takes place collectively and heterogeneously, similarly to Al diffusion in MGs. Finally, we applied the MD technique to study the origin of five-fold twinning nucleation during the solidification of Al base alloys. We studied several model alloys and reported the observed nucleation pathway. We found that the key factors controlling the five-fold twinning are the twin boundary energy and the formation of pentagon structures, and the twin boundary energy plays the dominant role in the five-fold twinning in the model alloys studied.

Phase-field Modeling of Microstructure Evolution in Elastically Inhomogeneous Polycrystalline Materials

Author : Tae Wook Heo
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.:/5 (812 download)

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Book Synopsis Phase-field Modeling of Microstructure Evolution in Elastically Inhomogeneous Polycrystalline Materials by : Tae Wook Heo

Download or read book Phase-field Modeling of Microstructure Evolution in Elastically Inhomogeneous Polycrystalline Materials written by Tae Wook Heo and published by . This book was released on 2012 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Predictive Modelling of Microstructural Evolution and Plastic Flow of Polycrystalline Materials During Thermomechanical Processing

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Author :
Publisher :
ISBN 13 :
Total Pages : 452 pages
Book Rating : 4.:/5 (94 download)

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Book Synopsis Predictive Modelling of Microstructural Evolution and Plastic Flow of Polycrystalline Materials During Thermomechanical Processing by :

Download or read book Predictive Modelling of Microstructural Evolution and Plastic Flow of Polycrystalline Materials During Thermomechanical Processing written by and published by . This book was released on 2002 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Modeling Microstructural Evolution in Single-phase, Composite and Two-phase Polycrystals

Author : Elizabeth Ann Holm
Publisher :
ISBN 13 :
Total Pages : 506 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Modeling Microstructural Evolution in Single-phase, Composite and Two-phase Polycrystals by : Elizabeth Ann Holm

Download or read book Modeling Microstructural Evolution in Single-phase, Composite and Two-phase Polycrystals written by Elizabeth Ann Holm and published by . This book was released on 1992 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Continuum Approach to the Modeling of Microstructural Evolution in Polycrystalline Solids

Author : Hashem M. Mourad
Publisher :
ISBN 13 :
Total Pages : 302 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis A Continuum Approach to the Modeling of Microstructural Evolution in Polycrystalline Solids by : Hashem M. Mourad

Download or read book A Continuum Approach to the Modeling of Microstructural Evolution in Polycrystalline Solids written by Hashem M. Mourad and published by . This book was released on 2004 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Predicitive Modelling of Microstructural Evolution and Plastic Flow of Polycrystalline Materials During Thermomechanical Processing

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Author : Rong Ding
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (592 download)

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Book Synopsis Predicitive Modelling of Microstructural Evolution and Plastic Flow of Polycrystalline Materials During Thermomechanical Processing by : Rong Ding

Download or read book Predicitive Modelling of Microstructural Evolution and Plastic Flow of Polycrystalline Materials During Thermomechanical Processing written by Rong Ding and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Grain Boundary Migration in Metals

Author : Gunter Gottstein
Publisher : CRC Press
ISBN 13 : 9780849382222
Total Pages : 454 pages
Book Rating : 4.3/5 (822 download)

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Book Synopsis Grain Boundary Migration in Metals by : Gunter Gottstein

Download or read book Grain Boundary Migration in Metals written by Gunter Gottstein and published by CRC Press. This book was released on 1999-06-17 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: The behavior of adjacent materials at the boundary where they meet is an essential aspect of creating new engineering materials. Grain Boundary Migration in Metals is an authoritative account of the physics of grain boundary motion, written by two highly respected researchers. They provide a comprehensive overview of current knowledge regarding the migration process and how it affects microstructure evolution, focusing their treatment exclusively on the properties and behavior of grain boundaries with well defined geometry and crystallography. With their emphasis on applications-such as the characterization of microstructure and texture, recrystallization, and grain growth-the authors effectively fill the gap between the physics of grain boundary motion and its engineering practicality. The need for better microstructural design motivates permanent thrust for research in the field, and continued rapid progress appears inevitable. Grain Boundary Migration in Metals provides a solid foundation in the phenomena and serves as a valuable reference for professionals in materials science, solid state physics, and any industry engaged in metals production and the heat treatment of metals and alloys.

Spectral Methods for Modeling Microstructure Evolution in Deformation Processing of Cubic Polycrystalline Metals

Author : Hari Kishore Duvvuru
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.:/5 (213 download)

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Book Synopsis Spectral Methods for Modeling Microstructure Evolution in Deformation Processing of Cubic Polycrystalline Metals by : Hari Kishore Duvvuru

Download or read book Spectral Methods for Modeling Microstructure Evolution in Deformation Processing of Cubic Polycrystalline Metals written by Hari Kishore Duvvuru and published by . This book was released on 2007 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mechanical properties of engineering materials are directly controlled by the underlying microstructure, which in turn is governed by the processing methods. The complete description of microstructure is extremely complex and is also not required for many microstructure-properties relationships of interest. The relevant details of the microstructure that influence strongly the elastic-plastic properties of the material include the lattice orientation distribution (texture), the grain size and shape distribution, and the arrangement and distribution of dislocation networks on the various slip systems in the constituent crystals. Of these, the crystallographic texture is perhaps the most important aspect of microstructure that has a strong influence on the elastic and the initial yield properties of most polycrystalline materials used in the manufacture of engineering components. It should also be noted that crystallographic texture is likely to have the dominant effect on the inherent anisotropy exhibited by these materials.The objective of this thesis is to provide a mathematical framework for the development of material databases; capturing the relevant details of the microstructure, while paying attention to inherent anisotropy of properties associated with them. Here crystallographic texture is the only microstructural parameter that is considered. This work is motivated by a new design paradigm called microstructure sensitive design (MSD) which employs statistical description of microstructure and its core feature is the efficient spectral representations of microstructure-property-processing linkages. Using the MSD framework as the basis, novel computational methodologies were developed in this work to build material spectral databases in single phase cubic polycrystalline materials. These databases were critically evaluated in three different cases: 1) To predict the effective macroscale elastic properties in perfectly disordered copper polycrystals 2) Evolution of the microstructure and the concomitant anisotropic stress-strain response during deformation processes in FCC polycrystals and (3) in developing a processing recipe to obtain a targeted texture using selected processing techniques.

Programming Phase-Field Modeling

Author : S. Bulent Biner
Publisher : Springer
ISBN 13 : 3319411969
Total Pages : 411 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis Programming Phase-Field Modeling by : S. Bulent Biner

Download or read book Programming Phase-Field Modeling written by S. Bulent Biner and published by Springer. This book was released on 2017-01-25 with total page 411 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook provides a fast-track pathway to numerical implementation of phase-field modeling—a relatively new paradigm that has become the method of choice for modeling and simulation of microstructure evolution in materials. It serves as a cookbook for the phase-field method by presenting a collection of codes that act as foundations and templates for developing other models with more complexity. Programming Phase-Field Modeling uses the Matlab/Octave programming package, simpler and more compact than other high-level programming languages, providing ease of use to the widest audience. Particular attention is devoted to the computational efficiency and clarity during development of the codes, which allows the reader to easily make the connection between the mathematical formulism and the numerical implementation of phase-field models. The background materials provided in each case study also provide a forum for undergraduate level modeling-simulations courses as part of their curriculum.

Proceedings of the Fourth International Symposium of Process Physics and Modeling in Semiconductor Technology

Author : G. R. Srinivasan
Publisher : The Electrochemical Society
ISBN 13 : 9781566771542
Total Pages : 546 pages
Book Rating : 4.7/5 (715 download)

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Book Synopsis Proceedings of the Fourth International Symposium of Process Physics and Modeling in Semiconductor Technology by : G. R. Srinivasan

Download or read book Proceedings of the Fourth International Symposium of Process Physics and Modeling in Semiconductor Technology written by G. R. Srinivasan and published by The Electrochemical Society. This book was released on 1996 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Making the Connection Between Microstructure and Mechanics

Author :
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (684 download)

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Book Synopsis Making the Connection Between Microstructure and Mechanics by :

Download or read book Making the Connection Between Microstructure and Mechanics written by and published by . This book was released on 2003 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of microstructural control is to optimize materials properties. To that end, they have developed sophisticated and successful computational models of both microstructural evolution and mechanical response. However, coupling these models to quantitatively predict the properties of a given microstructure poses a challenge. This problem arises because most continuum response models, such as finite element, finite volume, or material point methods, do not incorporate a real length scale. Thus, two self-similar polycrystals have identical mechanical properties regardless of grain size, in conflict with theory and observations. In this project, they took a tiered risk approach to incorporate microstructure and its resultant length scales in mechanical response simulations. Techniques considered include low-risk, low-benefit methods, as well as higher-payoff, higher-risk methods. Methods studied include a constitutive response model with a local length-scale parameter, a power-law hardening rate gradient near grain boundaries, a local Voce hardening law, and strain-gradient polycrystal plasticity. These techniques were validated on a variety of systems for which theoretical analyses and/or experimental data exist. The results may be used to generate improved constitutive models that explicitly depend upon microstructure and to provide insight into microstructural deformation and failure processes. Furthermore, because mechanical state drives microstructural evolution, a strain-enhanced grain growth model was coupled with the mechanical response simulations. The coupled model predicts both properties as a function of microstructure and microstructural development as a function of processing conditions.

Light Water Reactor Materials

Author : Arthur T. Motta
Publisher :
ISBN 13 : 9780894484674
Total Pages : pages
Book Rating : 4.4/5 (846 download)

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Book Synopsis Light Water Reactor Materials by : Arthur T. Motta

Download or read book Light Water Reactor Materials written by Arthur T. Motta and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Dynamic Behavior of Materials

Author : Mikko Hokka
Publisher : Elsevier
ISBN 13 : 0323991548
Total Pages : 714 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Dynamic Behavior of Materials by : Mikko Hokka

Download or read book Dynamic Behavior of Materials written by Mikko Hokka and published by Elsevier. This book was released on 2023-11-21 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials: Fundamentals, Material Models, and Microstructure Effects provides readers with the essential knowledge and tools necessary to determine best practice design, modeling, simulation and application strategies for a variety of materials while also covering the fundamentals of how material properties and behavior are affected by material structure and high strain rates. The book examines the relationships between material microstructure and consequent mechanical properties, enabling the development of materials with improved performance and more effective design of parts and components for high-rate applications. Sections cover the fundamentals of dynamic material behavior, with chapters studying dynamic elasticity and wave propagation, dynamic plasticity of crystalline materials, ductile fracture, brittle fracture, adiabatic heating and strain localization, response to shock loading, various material characterization methods, such as the Hopkinson Bar Technique, the Taylor Impact Experiment, different shock loading experiments, recent advances in dynamic material behavior, the dynamic behaviors of nanocrystalline materials, bulk metallic glasses, additively manufactured materials, ceramics, concrete and concrete-reinforced materials, geomaterials, polymers, composites, and biomaterials, and much more. Focuses on the relationship between material microstructure and resulting mechanical responses Covers the fundamentals, characterization methods, modeling techniques, applications and recent advances of the dynamic behavior of a broad array of materials Includes insights into manufacturing and processing techniques that enable more effective material design and application

Modeling Texture Evolution in Polycrystalline Materials Using Spherical Harmonics

Author : Jamaa Bouhattate
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (717 download)

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Book Synopsis Modeling Texture Evolution in Polycrystalline Materials Using Spherical Harmonics by : Jamaa Bouhattate

Download or read book Modeling Texture Evolution in Polycrystalline Materials Using Spherical Harmonics written by Jamaa Bouhattate and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Sintering Technology

Author : GerMan/Messing/
Publisher : CRC Press
ISBN 13 : 9780824797751
Total Pages : 552 pages
Book Rating : 4.7/5 (977 download)

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Book Synopsis Sintering Technology by : GerMan/Messing/

Download or read book Sintering Technology written by GerMan/Messing/ and published by CRC Press. This book was released on 1996-08-13 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on the sintering conference held at the Pennsylvania State University, USA, this text presents advances in the application of sintering to the most important industrial materials. It offers results on both solid-state and microphase sintering as well as microstructure evolution, and introduces new applications, processes, materials and solutions to technical problems.