Mechanical Response, Texture Evolution, and Fracture of a Rare-earth-containing Magnesium Alloy Sheet, ZEK100, at Different Strain Rates and Temperatures PDF Download
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Author: Saadi Habib
Publisher:
ISBN:
Category :
Languages : en
Pages : 352
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Book Description
Magnesium alloys have been at the forefront as possible alternatives to conventional materials such as aluminum and steel for their high specific-strength. However, magnesium alloys exhibit anisotropy, tension-compression asymmetry, and quasi-brittle fracture at ambient temperature, which is exacerbated at high strain rates. It is well known that alloying with rare-earth elements can improve the low uniaxial ductility in comparison with conventional magnesium alloys. Therefore, the mechanical response and texture evolution of a rare-earth-containing magnesium alloy sheet, ZEK100, are investigated under different loading conditions to characterize the anisotropy, tension-compression asymmetry, strain rate sensitivity and thermomechanical response. A reduced-order crystal plasticity model that defines extension twinning, basal a slip, and non-basal slip as the deformation mechanisms, is used to model the experimental results and to give an insight in the active deformation mechanism. In addition, the fracture behavior of ZEK100 is also investigated at different stress states and strain rates. A variety of sample geometries loaded along different processing directions are used to achieve different stress states and deformation mechanisms. Surface strain maps for all the specimens are measured using the digital image correlation (DIC) technique to quantify the strain at fracture. ZEK100 exhibits larger strain at fracture across the gage section of the test specimens aligned with the transverse direction (TD) than specimens aligned with the rolling direction (RD); however, the opposite is shown for the local strain measurements at fracture. Therefore, the crystal plasticity model is used to simulate each loading condition to understand the anisotropic ductile fracture behavior of ZEK100. Using the stress states and deformation mechanisms from the simulations, a novel anisotropic criterion is developed which is an extension of the Hosford-Coulomb (HC) fracture model. The new anisotropic criterion accounts for the role of different deformation mechanisms on the anisotropic fracture response of ZEK100.
Author: Saadi Habib
Publisher:
ISBN:
Category :
Languages : en
Pages : 352
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Book Description
Magnesium alloys have been at the forefront as possible alternatives to conventional materials such as aluminum and steel for their high specific-strength. However, magnesium alloys exhibit anisotropy, tension-compression asymmetry, and quasi-brittle fracture at ambient temperature, which is exacerbated at high strain rates. It is well known that alloying with rare-earth elements can improve the low uniaxial ductility in comparison with conventional magnesium alloys. Therefore, the mechanical response and texture evolution of a rare-earth-containing magnesium alloy sheet, ZEK100, are investigated under different loading conditions to characterize the anisotropy, tension-compression asymmetry, strain rate sensitivity and thermomechanical response. A reduced-order crystal plasticity model that defines extension twinning, basal a slip, and non-basal slip as the deformation mechanisms, is used to model the experimental results and to give an insight in the active deformation mechanism. In addition, the fracture behavior of ZEK100 is also investigated at different stress states and strain rates. A variety of sample geometries loaded along different processing directions are used to achieve different stress states and deformation mechanisms. Surface strain maps for all the specimens are measured using the digital image correlation (DIC) technique to quantify the strain at fracture. ZEK100 exhibits larger strain at fracture across the gage section of the test specimens aligned with the transverse direction (TD) than specimens aligned with the rolling direction (RD); however, the opposite is shown for the local strain measurements at fracture. Therefore, the crystal plasticity model is used to simulate each loading condition to understand the anisotropic ductile fracture behavior of ZEK100. Using the stress states and deformation mechanisms from the simulations, a novel anisotropic criterion is developed which is an extension of the Hosford-Coulomb (HC) fracture model. The new anisotropic criterion accounts for the role of different deformation mechanisms on the anisotropic fracture response of ZEK100.
Author:
Publisher: Newnes
ISBN: 0080965334
Category : Technology & Engineering
Languages : en
Pages : 5485
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Book Description
Comprehensive Materials Processing, Thirteen Volume Set provides students and professionals with a one-stop resource consolidating and enhancing the literature of the materials processing and manufacturing universe. It provides authoritative analysis of all processes, technologies, and techniques for converting industrial materials from a raw state into finished parts or products. Assisting scientists and engineers in the selection, design, and use of materials, whether in the lab or in industry, it matches the adaptive complexity of emergent materials and processing technologies. Extensive traditional article-level academic discussion of core theories and applications is supplemented by applied case studies and advanced multimedia features. Coverage encompasses the general categories of solidification, powder, deposition, and deformation processing, and includes discussion on plant and tool design, analysis and characterization of processing techniques, high-temperatures studies, and the influence of process scale on component characteristics and behavior. Authored and reviewed by world-class academic and industrial specialists in each subject field Practical tools such as integrated case studies, user-defined process schemata, and multimedia modeling and functionality Maximizes research efficiency by collating the most important and established information in one place with integrated applets linking to relevant outside sources
Author: Martyn Alderman
Publisher: Springer
ISBN: 3319482319
Category : Technology & Engineering
Languages : en
Pages : 502
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Book Description
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 in this collection represent all aspects of the field, ranging from primary production to applications to recycling. Moreover, papers explore everything from basic research findings to industrialization. This volume 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 in such areas as hydrogen storage.
Author: M. M. Avedesian
Publisher: ASM International
ISBN: 9780871706577
Category : Technology & Engineering
Languages : en
Pages : 336
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Book Description
This ASM Handbook is the most comprehensive collection of engineering information on this important structural material published in the last sixty years. Prepared with the cooperation of the International Magnesium Association, it presents the current industrial practices and provides information and data about the properties and performance of magnesium alloys. Materials science and engineering are covered, including processing, properties, and commercial uses.
Author:
Publisher:
ISBN: 9783030366483
Category : Electronic books
Languages : en
Pages : 381
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Book Description
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 2020 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; and structural applications. In addition, there is coverage of new and emerging applications.
Author: Akhtar S. Khan
Publisher: John Wiley & Sons
ISBN: 9780471310433
Category : Science
Languages : en
Pages : 434
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Book Description
The only modern, up-to-date introduction to plasticity Despite phenomenal progress in plasticity research over the past fifty years, introductory books on plasticity have changed very little. To meet the need for an up-to-date introduction to the field, Akhtar S. Khan and Sujian Huang have written Continuum Theory of Plasticity--a truly modern text which offers a continuum mechanics approach as well as a lucid presentation of the essential classical contributions. The early chapters give the reader a review of elementary concepts of plasticity, the necessary background material on continuum mechanics, and a discussion of the classical theory of plasticity. Recent developments in the field are then explored in sections on the Mroz Multisurface model, the Dafalias and Popov Two Surface model, the non-linear kinematic hardening model, the endochronic theory of plasticity, and numerous topics in finite deformation plasticity theory and strain space formulation for plastic deformation. Final chapters introduce the fundamentals of the micromechanics of plastic deformation and the analytical coupling between deformation of individual crystals and macroscopic material response of the polycrystal aggregate. For graduate students and researchers in engineering mechanics, mechanical, civil, and aerospace engineering, Continuum Theory of Plasticity offers a modern, comprehensive introduction to the entire subject of plasticity.
Author: Guozheng Kang
Publisher: John Wiley & Sons
ISBN: 1119180805
Category : Technology & Engineering
Languages : en
Pages : 320
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Book Description
New contributions to the cyclic plasticity of engineering materials Written by leading experts in the field, this book provides an authoritative and comprehensive introduction to cyclic plasticity of metals, polymers, composites and shape memory alloys. Each chapter is devoted to fundamentals of cyclic plasticity or to one of the major classes of materials, thereby providing a wide coverage of the field. The book deals with experimental observations on metals, composites, polymers and shape memory alloys, and the corresponding cyclic plasticity models for metals, polymers, particle reinforced metal matrix composites and shape memory alloys. Also, the thermo-mechanical coupled cyclic plasticity models are discussed for metals and shape memory alloys. Key features: Provides a comprehensive introduction to cyclic plasticity Presents Macroscopic and microscopic observations on the ratchetting of different materials Establishes cyclic plasticity constitutive models for different materials. Analysis of cyclic plasticity in engineering structures. This book is an important reference for students, practicing engineers and researchers who study cyclic plasticity in the areas of mechanical, civil, nuclear, and aerospace engineering as well as materials science.
Author: Christian Wetzel
Publisher: Cambridge University Press
ISBN: 9781558997790
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
This book discusses GaN and Related Alloys and reflects an emerging emphasis on the binaries of InN and AlN. The major thrust here is the topical development of thin-film growth, bulk growth techniques, methods to cover the full ternary and quaternary alloy ranges toward InN and AlN and their characterization; strategies for structural defect reduction and their characterization; ways to better control p-type doping and its characterization; device and defect physics, including polarization effects; physics of surfaces and interfaces; and device processing techniques. In addition, advances in MBE devices, high-power electronics, RF performance of electronics, UV emitters, high-efficiency light emitters, photo and chemical sensors, as well as new applications within the group-III nitrides, are also covered. The book captures the current status of this field and will be useful for researchers working with group-III nitrides, as well as for students who seek entry into this subject.
Author: BBVL. Deepak
Publisher: Springer Nature
ISBN: 9811526966
Category : Technology & Engineering
Languages : en
Pages : 1049
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Book Description
This book gathers selected research articles from the International Conference on Innovative Product Design and Intelligent Manufacturing System (ICIPDIMS 2019), held at the National Institute of Technology, Rourkela, India. The book discusses latest methods and advanced tools from different areas of design and manufacturing technology. The main topics covered include design methodologies, industry 4.0, smart manufacturing, and advances in robotics among others. The contents of this book are useful for academics as well as professionals working in industrial design, mechatronics, robotics, and automation.
Author: Michael E. Kassner
Publisher: Elsevier
ISBN: 0080532144
Category : Technology & Engineering
Languages : en
Pages : 289
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Book Description
* Numerous line drawings with consistent format and units allow easy comparison of the behavior of a very wide range of materials * Transmission electron micrographs provide a direct insight in the basic microstructure of metals deforming at high temperatures * Extensive literature review of over 1000 references provide an excellent reference document, and a very balanced discussionUnderstanding the strength of materials at a range of temperatures is critically important to a huge number of researchers and practitioners from a wide range of fields and industry sectors including metallurgists, industrial designers, aerospace R&D personnel, and structural engineers. The most up-to date and comprehensive book in the field, Fundamentals of Creep in Metals and Alloys discusses the fundamentals of time-dependent plasticity or creep plasticity in metals, alloys and metallic compounds. This is the first book of its kind that provides broad coverage of a range of materials not just a sub-group such as metallic compounds, superalloys or crystals. As such it presents the most balanced view of creep for all materials scientists. The theory of all of these phenomena are extensively reviewed and analysed in view of an extensive bibliography that includes the most recent publications in the field. All sections of the book have undergone extensive peer review and therefore the reader can be sure they have access to the most up-to-date research, fully interrogated, from the world's leading investigators.· Numerous line drawings with consistent format and units allow easy comparison of the behavior of a very wide range of materials· Transmission electron micrographs provide a direct insight in the basic microstructure of metals deforming at high temperatures· Extensive literature review of over 1000 references provide an excellent reference document, and a very balanced discussion
