Download or read book Grain Size Control in AA5083 Thermomechanical Processing and Particle Stimulated Nucleation written by and published by . This book was released on 2004 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superplastic forming is an emerging industrial technology that allows the production of complex shapes in metallic materials including aluminum. A critical characteristic of materials that are capable of sustaining superplastic forming is a fine grain size. In this study a commercial aluminum-magnesium-manganese alloy received in the as-cast condition was subjected to various thermomechanical processes intended to refine the grain size. Particle stimulated nucleation (PSN) theory was employed to develop the thermomechanical processes. These processes all involved initial homogenization and hot working. Subsequent annealing treatments were intended to control the size and size distribution of second phase particles, such as Al6Mn. Strain energy was introduced through cold rolling followed by recrystallization anneals. Samples were analyzed using orientation-imaging microscopy to examine the effect of processing variables on the recrystallized grain size.
Download or read book Grain Size Control in AA5083 written by Kristen L. Deffenbaugh and published by . This book was released on 2004-06-01 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superplastic forming is an emerging industrial technology that allows the production of complex shapes in metallic materials including aluminum. A critical characteristic of materials that are capable of sustaining superplastic forming is a fine grain size. In this study a commercial aluminum-magnesium- manganese alloy received in the as-cast condition was subjected to various thermomechanical processes intended to refine the grain size. Particle stimulated nucleation (PSN) theory was employed to develop the thermomechanical processes. These processes all involved initial homogenization and hot working. Subsequent annealing treatments were intended to control the size and size distribution of second phase particles, such as Al6Mn. Strain energy was introduced through cold rolling followed by recrystallization anneals. Samples were analyzed using orientation-imaging microscopy to examine the effect of processing variables on the recrystallized grain size.
Download or read book Grain Size Control in AA5083 by Thermomechanical Processing TMP The Role of Dispersed Particles written by and published by . This book was released on 2003 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superplasiticity in Aluminum alloys allows for the economical forming of components of complex shapes while retaining the high-strength and stiffness-to-weight ratios characteristic of alloys used in automotive, aerospace and military applications. Superplastic materials require fine grains with high-angle boundaries having resistance to failure by cavitation. This study was designed to achieve improved control of microstructure of Continuously Cast (CC) AA 5083 utilizing the Particle Stimulated Nucleation (PSN) model as a guide. The studies included a variety of overaging parameters in the thermomechanical process (TMP), followed by a constant processing strain and a subsequent recrystallization annealing treatment. The resulting material was analyzed using optical microscopy, and backscatter electron (BSE) and orientation imaging microscopy (OIM) methods to evaluate the effect of the processing on the grain size and the dispersion of particles.
Download or read book Grain Size Control written by T. Gladman and published by CRC Press. This book was released on 2020-11-25 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grain Size Control provides an excellent account of the understanding of many matters concerning grains, grain structure, and grain growth in controlling the grain size of polycrystalline metals. It considers the application of the principles of grain growth.
Download or read book Electron Backscatter Diffraction in Materials Science written by Adam J. Schwartz and published by Springer Science & Business Media. This book was released on 2010-03-11 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron backscatter diffraction is a very powerful and relatively new materials characterization technique aimed at the determination of crystallographic texture, grain boundary character distributions, lattice strain, phase identification, and much more. The purpose of this book is to provide the fundamental basis for electron backscatter diffraction in materials science, the current state of both hardware and software, and illustrative examples of the applications of electron backscatter diffraction to a wide-range of materials including undeformed and deformed metals and alloys, ceramics, and superconductors. The text has been substantially revised from the first edition, and the authors have kept the format as close as possible to the first edition text. The new developments covered in this book include a more comphrensive coverage of the fundamentals not covered in the first edition or other books in the field, the advances in hardware and software since the first edition was published, and current examples of application of electron backscatter diffraction to solve challenging problems in materials science and condensed-matter physics.
Download or read book Assessment of Grain Refinement by Microtexture Analysis in Thermomechanically Processed Al 2519 Alloy written by Steven L. Stancy and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of this study involved determining the mechanism by which elevated-temperature deformation occurred for selected tensile specimens from previous research on thermomechanically processed Al2519 alloy. Microtexture information in the form of discrete pole figures indicated that the most highly superplastic material had completely recrystallized and deformed via grain boundary sliding, whereas material that did not display superplastic behavior deformed via slip. The second part of the study was designed to achieve further refinement of the microstructure of Al2519 using the particle stimulated nucleation (PSN) model as a guide. Using the overaging parameters of the thermomechanical process (TMP) that had yielded the greatest elongation in previous work, additional material was processed but with varying final total processing strain. The resulting material was analyzed using backscatter electron (BSE) microscopy methods to evaluate the effect of total processing strain on the average grain size. The smallest true volume grain size was associated with the material with the highest total processing strain. jg p3.
Download or read book Assessment of Grain Refinement by Microtexture Analysis in Thermomechanically Processed Al 2519 Alloy written by Steven L. Stancy and published by . This book was released on 1995 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of this study involved determining the mechanism by which elevated-temperature deformation occurred for selected tensile specimens from previous research on thermomechanically processed Al2519 alloy. Microtexture information in the form of discrete pole figures indicated that the most highly superplastic material had completely recrystallized and deformed via grain boundary sliding, whereas material that did not display superplastic behavior deformed via slip. The second part of the study was designed to achieve further refinement of the microstructure of Al2519 using the particle stimulated nucleation (PSN) model as a guide. Using the overaging parameters of the thermomechanical process (TMP) that had yielded the greatest elongation in previous work, additional material was processed but with varying final total processing strain. The resulting material was analyzed using backscatter electron (BSE) microscopy methods to evaluate the effect of total processing strain on the average grain size. The smallest true volume grain size was associated with the material with the highest total processing strain. jg p3.
Download or read book Chemical Abstracts written by and published by . This book was released on 1994-03-07 with total page 1668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Precipitation and Recrystallization in A1 Alloy 2519 by Backscattered Electron Imaging Methods written by Peter Joseph Zohorsky and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examines the effects of pre-strain deformation temperature, overaging temperature, and other variations in thermomechanical processing (TMP) on the mean size and size distribution of q-phase precipitate particles in Al alloy 2519. Examination was performed using the scanning electron microscope in the backscattered imaging mode and quantitative image analysis methods were employed. The goal was to find a combination of TMP parameters which produces q-phase particles exceeding a critical diameter for particle stimulated nucleation (PSN) of recrystallization. A necessary prerequisite for superplasticity is a uniformly fine, equiaxed grain size and PSN is theorized to be capable of such grain refinement. Such a microstructure has been developed in Aluminum alloys containing large second phase particles when the alloys are subjected to cold work and recrystallization treatments.
Download or read book Materials for Automobile Bodies written by Geoffrey Davies and published by Butterworth-Heinemann. This book was released on 2012-03-30 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1 Introduction -- 2 Design and material utilization -- 3 Materials for consideration and use in automotive body structures -- 4 The role of demonstration, concept and competition cars -- 5 Component manufacture -- 6 Component assembly: materials joining technology -- 7 Corrosion and protection of the automotive structure -- 8 Environmental considerations -- 9 Future trends in automotive body materials.
Download or read book Additive Friction Stir Deposition written by Hang Z. Yu and published by Elsevier. This book was released on 2022-07-19 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive Friction Stir Deposition is a comprehensive summary of the state-of-the-art understanding on this emerging solid-state additive manufacturing technology. Sections cover additive friction stir deposition, encompassing advances in processing science, metallurgical science and innovative applications. The book presents a clear description of underlying physical phenomena, shows how the process determines the printing quality, covers resultant microstructure and properties in the as-printed state, highlights its key capabilities and limitations, and explores niche applications in repair, cladding and multi-material 3D printing. Serving as an educational and research guide, this book aims to provide a holistic picture of additive friction stir deposition-based solid-state additive manufacturing as well as a thorough comparison to conventional beam-based metal additive manufacturing, such as powder bed fusion and directed energy deposition. - Provides a clear process description of additive friction stir deposition and highlights key capabilities - Summarizes the current research and application of additive friction stir deposition, including material flow, microstructure evolution, repair and dissimilar material cladding - Discusses future applications and areas of research for this technology
Download or read book Extrusion of Aluminium Alloys written by T. Sheppard and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years the importance of extruded alloys has increased due to the decline in copper extrusion, increased use in structural applications, environmental impact and reduced energy consumption. There have also been huge technical advances. This text provides comprehensive coverage of the metallurgical, mathematical and practical features of the process.
Download or read book Friction Stir Welding and Processing in Alloy Manufacturing written by Carlos Agelet de Saracibar and published by MDPI. This book was released on 2019-08-02 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue Friction Stir Welding and Processing in Alloy Manufacturingthat was published in Metals
Download or read book Magnesium Technology 2020 written by and published by . This book was released on 2020 with total page 381 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 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.
Download or read book Introduction to Texture Analysis written by Olaf Engler and published by CRC Press. This book was released on 2009-11-16 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first edition of Introduction to Texture Analysis: Macrotexture, Microtexture, and Orientation Mapping broke new ground by collating seventy years worth of research in a convenient single-source format. Reflecting emerging methods and the evolution of the field, the second edition continues to provide comprehensive coverage of the concepts, pra
Download or read book Nanomaterials by Severe Plastic Deformation written by Michael J. Zehetbauer and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings of the "Second International Conference on Nanomaterials by Severe Plastic Deformation" review the enormous scientific avalanche that has been developing in the field over recent years. A valuable resource for any scientist and engineer working in this emerging field of nanotechnology.
Download or read book Bulk Nanostructured Materials written by Ruslan Z. Valiev and published by John Wiley & Sons. This book was released on 2013-09-17 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the most recent results in the area of bulk nanostructured materials and new trends in their severe plastic deformation (SPD) processing, where these techniques are now emerging from the domain of laboratory-scale research into the commercial production of various bulk nanomaterials. Special emphasis is placed on an analysis of the effect of nanostructures in materials fabricated by SPD on mechanical properties (strength and ductility, fatigue strength and life, superplasticity) and functional behavior (shape memory effects, magnetic and electric properties), as well as the numerous examples of their innovative applications. There is a high innovation potential for industrial applications of bulk nanomaterials for structural use (materials with extreme strength) as well as for functional applications such as nanomagnets, materials for hydrogen storage, thermoelectric materials, superconductors, catalysts, and biomedical implants.
