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Author: Javad Kadkhodapour Publisher: Elsevier ISBN: 0323886493 Category : Technology & Engineering Languages : en Pages : 858
Book Description
Quality Analysis of Additively Manufactured Metals: Simulation Approaches, Processes, and Microstructure Properties provides readers with a firm understanding of the failure and fatigue processes of additively manufactured metals. With a focus on computational methods, the book analyzes the process-microstructure-property relationship of these metals and how it affects their quality while also providing numerical, analytical, and experimental data for material design and investigation optimization. It outlines basic additive manufacturing processes for metals, strategies for modeling the microstructural features of metals and how these features differ based on the manufacturing process, and more.Improvement of additively manufactured metals through predictive simulation methods and microdamage and micro-failure in quasi-static and cyclic loading scenarios are covered, as are topology optimization methods and residual stress analysis techniques. The book concludes with a section featuring case studies looking at additively manufactured metals in automotive, biomedical and aerospace settings. - Provides insights and outlines techniques for analyzing why additively manufactured metals fail and strategies for avoiding those failures - Defines key terms and concepts related to the failure analysis, quality assurance and optimization processes of additively manufactured metals - Includes simulation results, experimental data and case studies
Author: Javad Kadkhodapour Publisher: Elsevier ISBN: 0323886493 Category : Technology & Engineering Languages : en Pages : 858
Book Description
Quality Analysis of Additively Manufactured Metals: Simulation Approaches, Processes, and Microstructure Properties provides readers with a firm understanding of the failure and fatigue processes of additively manufactured metals. With a focus on computational methods, the book analyzes the process-microstructure-property relationship of these metals and how it affects their quality while also providing numerical, analytical, and experimental data for material design and investigation optimization. It outlines basic additive manufacturing processes for metals, strategies for modeling the microstructural features of metals and how these features differ based on the manufacturing process, and more.Improvement of additively manufactured metals through predictive simulation methods and microdamage and micro-failure in quasi-static and cyclic loading scenarios are covered, as are topology optimization methods and residual stress analysis techniques. The book concludes with a section featuring case studies looking at additively manufactured metals in automotive, biomedical and aerospace settings. - Provides insights and outlines techniques for analyzing why additively manufactured metals fail and strategies for avoiding those failures - Defines key terms and concepts related to the failure analysis, quality assurance and optimization processes of additively manufactured metals - Includes simulation results, experimental data and case studies
Author: John C. Lippold Publisher: John Wiley & Sons ISBN: 1118210034 Category : Technology & Engineering Languages : en Pages : 370
Book Description
The most up-to-date coverage of welding metallurgy aspects and weldability issues associated with Ni-base alloys Welding Metallurgy and Weldability of Nickel-Base Alloys describes the fundamental metallurgical principles that control the microstructure and properties of welded Ni-base alloys. It serves as a practical how-to guide that enables engineers to select the proper alloys, filler metals, heat treatments, and welding conditions to ensure that failures are avoided during fabrication and service. Chapter coverage includes: Alloying additions, phase diagrams, and phase stability Solid-solution strengthened Ni-base alloys Precipitation strengthened Ni-base alloys Oxide dispersion strengthened alloys and nickel aluminides Repair welding of Ni-base alloys Dissimilar welding Weldability testing High-chromium alloys used in nuclear power applications With its excellent balance between the fundamentals and practical problem solving, the book serves as an ideal reference for scientists, engineers, and technicians, as well as a textbook for undergraduate and graduate courses in welding metallurgy.
Author: William F. Hosford Publisher: Cambridge University Press ISBN: 0521195691 Category : Science Languages : en Pages : 437
Book Description
This is a textbook on the mechanical behavior of materials for mechanical and materials engineering. It emphasizes quantitative problem solving. This new edition includes treatment of the effects of texture on properties and microstructure in Chapter 7, a new chapter (12) on discontinuous and inhomogeneous deformation, and treatment of foams in Chapter 21.
Author: Dunyong Deng Publisher: Linköping University Electronic Press ISBN: 9176853837 Category : Languages : en Pages : 82
Book Description
Additive manufacturing (AM), also known as 3D printing, has gained significant interest in aerospace, energy, automotive and medical industries due to its capabilities of manufacturing components that are either prohibitively costly or impossible to manufacture by conventional processes. Among the various additive manufacturing processes for metallic components, electron beam melting (EBM) and selective laser melting (SLM) are two of the most widely used powder bed based processes, and have shown great potential for manufacturing high-end critical components, such as turbine blades and customized medical implants. The futures of the EBM and SLM are doubtlessly promising, but to fully realize their potentials there are still many challenges to overcome. Inconel 718 (IN718) is a nickel-base superalloy and has impressive combination of good mechanical properties and low cost. Though IN718 is being mostly used as a turbine disk material now, the initial introduction of IN718 was to overcome the poor weldability of superalloys in 1960s, since sluggish precipitation of strengthening phases ?’/?’’ enables good resistance to strain-age cracking during welding or post weld heat treatment. Given the similarity between AM and welding processes, IN718 has been widely applied to the metallic AM field to facilitate the understandings of process-microstructure-property relationships. The work presented in this licentiate thesis aims to better understand microstructures and mechanical properties EBM and SLM IN718, which have not been systematically investigated. Microstructures of EBM and SLM IN718 have been characterized with scanning electron microscopy (SEM), transmission electron microscopy (TEM) and correlated with the process conditions. Monotonic mechanical properties (e.g., Vickers microhardness and tensile properties) have also been measured and rationalized with regards to the microstructure evolutions before and after heat treatments. For EBM IN718, the results show the microstructure is not homogeneous but dependant on the location in the components, and the anisotropic mechanical properties are probably attributed to alignment of porosities rather than texture. Post heat treatment can slightly increase the mechanical strength compared to the as-manufactured condition but does not alter the anisotropy. SLM IN718 shows significantly different microstructure and mechanical properties to EBM IN718. The as-manufactured SLM IN718 has very fine dendritic microstructure and Laves phases in the interdendrites, and is “work-hardened” by the residual strains and dislocations present in the material. Mechanical properties are different between horizontally and vertically built samples, and heat treatment can minimize this difference. Results from this licentiate thesis provide the basis for the further research on the cyclic mechanical properties of EBM and SLM IN718, which would be the focus of following phase of the Ph.D. research.
Author: Andrea Di Schino Publisher: MDPI ISBN: 3039286501 Category : Technology & Engineering Languages : en Pages : 260
Book Description
Stainless steels represent a quite interesting material family, both from a scientific and commercial point of view, following to their excellent combination in terms of strength and ductility together with corrosion resistance. Thanks to such properties, stainless steels have been indispensable for the technological progress during the last century and their annual consumption increased faster than other materials. They find application in all these fields requiring good corrosion resistance together with ability to be worked into complex geometries. Despite to their diffusion as a consolidated materials, many research fields are active regarding the possibility to increase stainless steels mechanical properties and corrosion resistance by grain refinement or by alloying by interstitial elements. At the same time innovations are coming from the manufacturing process of such a family of materials, also including the possibility to manufacture them starting from metals powder for 3D printing. The Special Issue scope embraces interdisciplinary work covering physical metallurgy and processes, reporting about experimental and theoretical progress concerning microstructural evolution during processing, microstructure-properties relations, applications including automotive, energy and structural.
Author: William F. Hosford Publisher: Oxford University Press, USA ISBN: 9780195077445 Category : Crystals. Languages : en Pages : 248
Book Description
This text is an introduction to crystal mechanics and includes theories of polycrystalline and continuum plasticity for textured materials. It presents a simple and concise review of the mechanics of crystals and polycrystals and gives methods for solving problems related to the plastic deformation of metals. Along with the basic concepts, essential for the student or nonspecialist, much of the author's pioneering work is emphasized and is presented for the first time in book form. Focussing on plasticity, the text includes a chapter on elasticity, which introduces the reader to transformations of stress and strain from one set of axes to another. The effects of anisotropic thermal expansion on polycrystals are also discussed. The concepts of crystal plasticity are extended to predict the behavior of textured polycrystals and the predicted behavior is related to continuum theories of yielding. The author demonstrates that to solve engineering problems, it is possible to bypass continuum mechanics completely, and use crystallographic analyses directly. With our rapidly growing computer power, such an approach to engineering problems may eventually become routine. Sample problems have been included in the first few chapters and Appendix I to illustrate points and show approaches to solving problems. For novices, helpful appendices have been included to cover fundamentals of geometry, crystallography, and mechanics. Students of materials science, mechanics, crystallography, and engineering may use this textbook for part of a general course on the mechanical behavior of metals.
Author: Eric S. Huron Publisher: John Wiley & Sons ISBN: 1118516400 Category : Technology & Engineering Languages : en Pages : 952
Book Description
A superalloy, or high-performance alloy, is an alloy that exhibits excellent mechanical strength at high temperatures. Superalloy development has been driven primarily by the aerospace and power industries. This compilation of papers from the Twelfth International Symposium on Superalloys, held from September 9-13, 2012, offers the most recent technical information on this class of materials.
Author: Bhaskar Dutta Publisher: Butterworth-Heinemann ISBN: 0128047836 Category : Technology & Engineering Languages : en Pages : 96
Book Description
Additive Manufacturing of Titanium Alloys: State of the Art, Challenges and Opportunities provides alternative methods to the conventional approach for the fabrication of the majority of titanium components produced via the cast and wrought technique, a process which involves a considerable amount of expensive machining. In contrast, the Additive Manufacturing (AM) approach allows very close to final part configuration to be directly fabricated minimizing machining cost, while achieving mechanical properties at least at cast and wrought levels. In addition, the book offers the benefit of significant savings through better material utilization for parts with high buy-to-fly ratios (ratio of initial stock mass to final part mass before and after manufacturing). As titanium additive manufacturing has attracted considerable attention from both academicians and technologists, and has already led to many applications in aerospace and terrestrial systems, as well as in the medical industry, this book explores the unique shape making capabilities and attractive mechanical properties which make titanium an ideal material for the additive manufacturing industry. - Includes coverage of the fundamentals of microstructural evolution in titanium alloys - Introduces readers to the various Additive Manufacturing Technologies, such as Powder Bed Fusion (PBF) and Directed Energy Deposition (DED) - Looks at the future of Titanium Additive Manufacturing - Provides a complete review of the science, technology, and applications of Titanium Additive Manufacturing (AM)
Author: Javad Kadkhodapour
Author: Javad Kadkhodapour
Author: John C. Lippold
Author: William F. Hosford
Author: Dunyong Deng
Author: Andrea Di Schino
Author: William F. Hosford
Author: Eric S. Huron
Author: Bhaskar Dutta
Author: Heinz Neuber
Author: The Minerals, Metals & Materials Society