Quantitative Comparison Of Aluminum Alloy Sheet Forming Methods
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Quantitative Comparison Of Aluminum Alloy Sheet Forming Methods
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Author : Senthilkumar Venkatesan
language : en
Publisher:
Release Date : 2010
Quantitative Comparison Of Aluminum Alloy Sheet Forming Methods written by Senthilkumar Venkatesan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Aluminum alloys categories.
Final Technical Report Heterogeneous Nucleation And Growth In Metal Alloys
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Author :
language : en
Publisher:
Release Date : 1997
Final Technical Report Heterogeneous Nucleation And Growth In Metal Alloys written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
We have refined a heat treatment to obtain coherent, heterogeneous nucleation of precipitates on dislocations in a high purity binary alloy. This allowed, for the first time, a quantitative comparison to be made for coherent heterogeneous nucleation. This part of the research resulted from our concern about the role of dislocations in sub-boundaries in aluminum alloys and directed us to first examine isolated dislocations in the binary Al-Li systems. We were able to design the experiment so the heterogeneous nucleation of AL3Li occurred. Previously, only homogeneous nucleation of Al3Li had been examined.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Aluminum And Aluminum Alloys
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Author : Joseph R. Davis
language : en
Publisher: ASM International
Release Date : 1993-01-01
Aluminum And Aluminum Alloys written by Joseph R. Davis and has been published by ASM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-01-01 with Technology & Engineering categories.
This one-stop reference is a tremendous value and time saver for engineers, designers and researchers. Emerging technologies, including aluminum metal-matrix composites, are combined with all the essential aluminum information from the ASM Handbook series (with updated statistical information).
Fundamentals Of Alloy Solidification Applied To Industrial Processes
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Author :
language : en
Publisher:
Release Date : 1984
Fundamentals Of Alloy Solidification Applied To Industrial Processes written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Alloys categories.
Solidification processes and phenomena, segregation, porosity, gravity effects, fluid flow, undercooling, as well as processing of materials in the microgravity environment of space, now available on space shuttle flights were discussed.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1989
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Aeronautics categories.
Incremental Bending Study Of Aluminum Alloy Based On Dic Technique
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Author :
language : en
Publisher:
Release Date : 2020
Incremental Bending Study Of Aluminum Alloy Based On Dic Technique written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Aluminum alloys categories.
Aluminum alloys (AA) are widely used in automobile industry as lightweight materials attributed to the high strength to weight ratios and superior formability. Bending is a common and vital process in the sheet metal forming. Bendability is one of the most important formability characteristics in sheet metal forming, so it must be understood for robust aluminium stamping process designs. Crack and springback are major disadvantages in sheet metal forming. Many studies focused on the bending process using simulation and numerical methods, with experimental tests rarely being reported. A new edge bending methodology called "incremental bending" has been developed and implemented on aluminum sheet at room temperature. 3D digital image correlation, a non-contact, full field, optical measurement technique, was employed simultaneously to provide a high accuracy measurement of the full field strain distribution and springback curvature, making it very suitable for springback measurement. Using this method, peak bending strain was lowered, as well as a reduction of springback. Moreover, the risk of fracture is greatly lowered. The experimental results agree well with the theoretical analysis. This work could help to eliminate fracture, minimizes springback in sheel metal bending dramatically and improves formability and productivity, as well as provide a reference for researchers studying cold bending. The basic theory, system configurations, results analysis and applications are shown in detail in this dissertation.
Asme Technical Papers
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Author :
language : en
Publisher:
Release Date :
Asme Technical Papers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Mechanical engineering categories.
Corrosion Control Technologies For Aluminum Alloy Vessel
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Author : Zhigang Fang
language : en
Publisher: Springer Nature
Release Date : 2020-01-03
Corrosion Control Technologies For Aluminum Alloy Vessel written by Zhigang Fang and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-03 with Technology & Engineering categories.
This book elaborates the corrosion testing and assessment methods for the aluminum alloy vessel in the service and internal environment. The emphasis is placed on the research of general materials corrosion characteristics, electrochemical protection design, surface protection, coating and painting, etc. This book helps readers to keep abreast of the whole technology system of the corrosion prevention and control of aluminum alloy vessel, especially the systematic engineering view of life cycle corrosion control for the vessel is of particular interest to readers.
Textures In Strip Cast Aluminum Alloys
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Author :
language : en
Publisher:
Release Date : 2003
Textures In Strip Cast Aluminum Alloys written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Aluminum sheets produced by continuous casting (CC) provide energy and economic savings of at least 25 and 14 percent, respectively, over sheets made from conventional direct chill (DC) ingot casting and rolling. As a result of the much simpler production route in continuous casting, however, the formability of CC aluminum alloys is often somewhat inferior to that of their DC counterparts. The mechanical properties of CC alloys can be improved by controlling their microstructure through optimal thermomechanical processing. Suitable annealing is an important means to improve the formability of CC aluminum alloy sheets. Recrystallization of deformed grains occurs during annealing, and it changes the crystallographic texture of the aluminum sheet. Laboratory tests in this project showed that this texture change can be detected by either laser-ultrasound resonance spectroscopy or resonance EMAT (electromagnetic acoustic transducer) spectroscopy, and that monitoring this change allows the degree of recrystallization or the ''recrystallized fraction'' in an annealed sheet to be ascertained. Through a plant trial conducted in May 2002, this project further demonstrated that it is feasible to monitor the recrystallized state of a continuous-cast aluminum sheet in-situ on the production line by using a laser-ultrasound sensor. When used in conjunction with inline annealing, inline monitoring of the recrystallized fraction by laser-ultrasound resonance spectroscopy offers the possibility of feed-back control that helps optimize processing parameters (e.g., annealing temperature), detect production anomalies, ensure product quality, and further reduce production costs of continuous-cast aluminum alloys. Crystallographic texture strongly affects the mechanical anisotropy/formability of metallic sheets. Clarification of the quantitative relationship between texture and anisotropy/formability of an aluminum alloy will render monitoring and control of its texture during the sheet production process even more meaningful. The present project included a study to determine how the anisotropic plastic behavior of a continuous-cast AA 5754 aluminum alloy depends on quantifiable texture coefficients. Formulae which show explicitly the effects of texture on the directional dependence of the q-value (a formability parameter) and of the uniaxial flow stress, respectively, were derived. Measurements made on a batch of as-received AA 5754 hot band and its O-temper counterpart corroborate the validity of these formulae. On the other hand, these measurements also indicate that some microstructure(s) other than texture could play a significant role in the plastic anisotropy of the AA 5754 alloy. For the q-value of a set of O-temper samples of this alloy, the additional microstructure that affects plastic anisotropy was shown to be grain shape. A formula that captures both the effects of crystallographic texture and grain shape on the q-value of the O-temper material was derived. A simple quadratic plastic potential that delivers this q-value formula was written down. Verification of the adequacy of this plastic potential, however, requires further investigations.