Hot Tearing And Constitutive Behaviour Of Semi Solid Aluminum Alloys
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Hot Tearing And Constitutive Behaviour Of Semi Solid Aluminum Alloys
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Author :
language : en
Publisher:
Release Date : 2005
Hot Tearing And Constitutive Behaviour Of Semi Solid 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 2005 with categories.
The occurrence of hot tearing during solidification is one of the major factors influencing both the quality and productivity of aluminum castings. In order to reduce the formation of hot tears, quantitative information regarding both hot tearing formation and semi-solid deformation is essential. In this study, the mechanisms of hot tearing and semi-solid deformation have been investigated via two novel techniques: x-ray micro-tomography on material deformed in the semi-solid region, and development of a three phase microstructural model based on a geometry derived from a Voronoi diagram with rounded corners and porosity. Numerical techniques were utilized to quantify both the size evolution and orientation of internal damage relative to void growth. In order to conduct the above research, a new semi-solid tensile deformation methodology was devised which uses a two thermocouple control technique to enable accurate measurement of semi-solid tensile strength and ductility. The experimental work was conducted on the aluminum - magnesium alloy AA5182 in the as-cast and hot isostatic pressing (HIP) states. The x-ray micro-tomography technique was used to observe that semi-solid deformation is accommodated by internal damage via growth of as-cast porosity and the nucleation of new damage-based voids. As the volume fraction of damage increases, the growth of voids occurs in an orientation perpendicular to the loading direction, both through expansion within the grain boundary liquid and via coalescence between voids. The damage then localizes, causing failure. The finite element semi-solid microstructural model was used to explore the effects of fraction solid, fraction porosity, and grain size on semi-solid constitutive behaviour. The simulations revealed that increased grain size and fraction porosity lead to a reduction in flow stress for a given fraction solid. Furthermore, local strain accumulation was linked to hot tearing, since strain localizes in the liquid very.
Mechanical Properties In The Semi Solid State And Hot Tearing Of Aluminum Alloys
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Author :
language : en
Publisher:
Release Date : 2004
Mechanical Properties In The Semi Solid State And Hot Tearing Of 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 2004 with Aluminum alloys categories.
Modeling Steel Deformation In The Semi Solid State
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Author : Marcin Hojny
language : en
Publisher: Springer
Release Date : 2017-09-07
Modeling Steel Deformation In The Semi Solid State written by Marcin Hojny and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-07 with Technology & Engineering categories.
This book offers a unique approach to integrated high-temperature process modelling, intended to serve as a design aid for new metal processing technologies. The second edition has been substantially expanded to include new content such as: a new algorithm and test results of 3D stereoscopic visualization; new programming procedures for modelling; the validation of computer simulation using experimental results; a multiscale model of grain growth; a conceptual methodology developing “high-temperature” CCT (continuous cooling transformation) diagrams, and many more examples validating the numerical simulations. The models presented are applied in comprehensive tests in order to solve problems related to the high-temperature deformation of steel. The testing methods include both physical tests using specialist laboratory instruments, and advanced mathematical modelling: the Finite Element method (FE), Smoothed Particle Hydrodynamics method (SPH) and Mo nte Carlo method (MC).This approach, which integrates the fields of physical and computer-based simulations, forms the basis for the described concept of integrated high-temperature process modelling, presented in detail in this book.
Hot Deformation And Processing Of Aluminum Alloys
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Author : Hugh J. McQueen
language : en
Publisher: CRC Press
Release Date : 2016-04-19
Hot Deformation And Processing Of Aluminum Alloys written by Hugh J. McQueen and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Technology & Engineering categories.
A comprehensive treatise on the hot working of aluminum and its alloys, Hot Deformation and Processing of Aluminum Alloys details the possible microstructural developments that can occur with hot deformation of various alloys, as well as the kind of mechanical properties that can be anticipated. The authors take great care to explain and differenti
Hot Deformation Of Aluminum Alloys Ii
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Author : Thomas R. Bieler
language : en
Publisher: Minerals, Metals, & Materials Society
Release Date : 1998
Hot Deformation Of Aluminum Alloys Ii written by Thomas R. Bieler and has been published by Minerals, Metals, & Materials Society this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Science categories.
These symposium proceedings from the 1998 TMS Fall Meeting examine the relationships between mechanical behavior and microstructural evolution that must be quantified to develop predictive models for hot deformation. Issues addressed include constitutive modeling; process design and modeling; laboratory simulation of large scale hot working processes; the evolution of microstructure; texture, damage, dynamic precipitation, recovery, and recrystallization processes; creep and superplastic deformation; and the ability to predict phenomena such as corrosion and formability after hot deformation.
Enhanced Material Parts Optimization And Process Intensification
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Author : Uwe Reisgen
language : en
Publisher: Springer Nature
Release Date : 2021-03-07
Enhanced Material Parts Optimization And Process Intensification written by Uwe Reisgen and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-07 with Technology & Engineering categories.
This book reports on topics at the interface between material processing, product and process optimization. It covers new developments and challenges in welding, brazing, cutting and coating, casting and molding, additive manufacturing, simulation and optimization techniques, as well as functional and structural materials and composites. Gathering authoritative contributions on the latest research and applications, presented at the International Joint Conference on Enhanced Material and Part Optimization and Process Intensification, EMPOrIA 2020, organized by SFB1120 Aachen, SFB814 Erlangen and CCE Darmstadt, on May 19–20, 2020, in Aachen, this book provides academics, students, and professionals with a timely snapshot of the main research trends, and extensive information on cutting-edge methods and technologies in materials, manufacturing and process engineering.
Semi Solid Processing Of Aluminum Alloys
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Author : Shahrooz Nafisi
language : en
Publisher: Springer
Release Date : 2018-06-16
Semi Solid Processing Of Aluminum Alloys written by Shahrooz Nafisi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-06-16 with Technology & Engineering categories.
This book describes in great detail the semi-solid processing of aluminum alloys. The authors examine the fundamentals of semi-solid metal processing, provide guidelines for research, illustrate the tools that are employed, and explain the measured parameters for semi-solid processing characterization.
Aluminium Cast House Technology
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Author : The Minerals, Metals & Materials Society (TMS)
language : en
Publisher: John Wiley & Sons
Release Date : 2013-09-06
Aluminium Cast House Technology written by The Minerals, Metals & Materials Society (TMS) and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-06 with Technology & Engineering categories.
Aluminium Cast House Technology: Eighth Australasian Conference
Frontiers In Solidification Science
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Author :
language : en
Publisher:
Release Date : 2007
Frontiers In Solidification Science written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Alloys categories.
Hot Deformation Of Aluminum Alloys Iii
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Author : Zhe Jin
language : en
Publisher: TMS Publishing Company
Release Date : 2003
Hot Deformation Of Aluminum Alloys Iii written by Zhe Jin and has been published by TMS Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Technology & Engineering categories.
"This is the proceedings of the third symposium on Hot Deformation in Aluminum Alloys, held in San Diego, CA, March 3-6, 2003."--p. xi.