Modelling Hot Deformation of Steels PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Modelling Hot Deformation of Steels PDF full book. Access full book title Modelling Hot Deformation of Steels by John G. Lenard. Download full books in PDF and EPUB format.
Author: John G. Lenard
Publisher: Springer Science & Business Media
ISBN: 3642525156
Category : Technology & Engineering
Languages : en
Pages : 154
Get Book
Book Description
Computer Aided Engineering may be defined as an approach to solving tech nological problems in which most or all of the steps involved are automated through the use of computers, data bases and mathematical models. The success of this ap proach, considering hot forming, is tied very directly to an understanding of material behaviour when subjected to deformation at high temperatures. There is general agreement among engineers that not enough is known about that topic -and this gave the initial impetus for the project described in the present study. The authors secured a research grant from NATO (Special Research Grant #390/83) with a mandate to study the "State-of-the-Art of Controlled Rolling". What follows is the result of that study. There are five chapters in this Monograph. The first one, entitled "State-of-the Art of Controlled Rolling" discusses industrial and laboratory practices and research designed to aid in the development of microalloyed steels of superior quality. Follow ing this is the chapter "Methods of Determining Stress-Strain Curves at Elevated Temperatures". The central concern here is the material's resistance to deformation or in other words, its flow strength, the knowledge of which is absolutely essential for the efficient and economical utilization of the computers controlling the rolling process.
Author: John G. Lenard
Publisher: Springer Science & Business Media
ISBN: 3642525156
Category : Technology & Engineering
Languages : en
Pages : 154
Get Book
Book Description
Computer Aided Engineering may be defined as an approach to solving tech nological problems in which most or all of the steps involved are automated through the use of computers, data bases and mathematical models. The success of this ap proach, considering hot forming, is tied very directly to an understanding of material behaviour when subjected to deformation at high temperatures. There is general agreement among engineers that not enough is known about that topic -and this gave the initial impetus for the project described in the present study. The authors secured a research grant from NATO (Special Research Grant #390/83) with a mandate to study the "State-of-the-Art of Controlled Rolling". What follows is the result of that study. There are five chapters in this Monograph. The first one, entitled "State-of-the Art of Controlled Rolling" discusses industrial and laboratory practices and research designed to aid in the development of microalloyed steels of superior quality. Follow ing this is the chapter "Methods of Determining Stress-Strain Curves at Elevated Temperatures". The central concern here is the material's resistance to deformation or in other words, its flow strength, the knowledge of which is absolutely essential for the efficient and economical utilization of the computers controlling the rolling process.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book
Book Description
Author: Marcin Hojny
Publisher: Springer
ISBN: 3319679767
Category : Technology & Engineering
Languages : en
Pages : 302
Get Book
Book Description
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.
Author: Cemil Hakan Gur
Publisher: CRC Press
ISBN: 1420003585
Category : Technology & Engineering
Languages : en
Pages : 754
Get Book
Book Description
An Emerging Tool for Pioneering Engineers Co-published by the International Federation of Heat Treatment and Surface Engineering.Thermal processing is a highly precise science that does not easily lend itself to improvements through modeling, as the computations required to attain an accurate prediction of the microstructure and properties of work
Author: Y. V. R. K. Prasad
Publisher: ASM International
ISBN: 9781615032020
Category : Technology & Engineering
Languages : en
Pages : 566
Get Book
Book Description
A unique source book with flow stress data for hot working, processing maps with metallurgical interpretation and optimum processing conditions for metals, alloys, intermetallics, and metal matrix composites. The use of this book replaces the expensive and time consuming trial and error methods in process design and product development.
Author: Charles Andrew Monroe
Publisher: ProQuest
ISBN: 9781109023824
Category : Steel
Languages : en
Pages : 382
Get Book
Book Description
A three-phase model is presented that predicts solid deformation and damage as well as melt pressure, feeding flow, and shrinkage porosity. A viscoplastic constitutive theory with damage is used to model the solid deformation. Damage is a scalar quantity based on ductile fracture theory which is calculated from the inelastic volume deformation. This associative model smoothly transitions from rate-dependent behaviour at high temperatures to rate-independent behaviour at lower temperatures. The damage created by mechanically induced voiding is proposed as a new hot tear criterion. Hot tears are believed to initiate from locations with significant damage. The liquid feeding and shrinkage porosity is coupled to the solid deformation which enables the final damage prediction to be more accurate than previous hot tear criteria. This model has been successfully implemented in a general-purpose casting simulation code. Novel steel casting experiments have been designed and performed which measure the deformation and force from solidification to shakeout. Under certain experimental conditions, hot tears form in the test castings and the deformation and force during hot tear formation is also measured. The measured and predicted deformations and forces show good agreement with the simulation results. Furthermore, the damage predictions show good correspondence with hot tear indications on radiographs of the test castings.
Author: Myoung-Gyu Lee
Publisher: MDPI
ISBN: 3038972606
Category : Electronic books
Languages : en
Pages : 283
Get Book
Book Description
This book is a printed edition of the Special Issue "Advances in Plastic Forming of Metals" that was published in Metals
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book
Book Description
Author: Hugh J. McQueen
Publisher: CRC Press
ISBN: 1420017683
Category : Technology & Engineering
Languages : en
Pages : 616
Get Book
Book Description
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 differentiate hot working in the context of other elevated temperature phenomena, such as creep, superplasticity, cold working, and annealing. They also pay particular attention to the fundamental mechanisms of aluminum plasticity at hot working temperatures. Using extensive analysis derived from polarized light optical microscopy (POM), transmission electron microscopy (TEM), x-ray diffraction (XRD) scanning electron-microscopy with electron backscatter imaging (SEM-EBSD), and orientation imaging microscopy (OIM), the authors examine those microstructures that evolve in torsion, compression, extrusion, and rolling. Further microstructural analysis leads to detailed explanations of dynamic recovery (DRV), static recovery (SRV), discontinuous dynamic recrystallization (dDRX), discontinuous static recrystallization (dSRX), grain defining dynamic recovery (gDRV) (formerly geometric dynamic recrystallization, or gDRX), and continuous dynamic recrystallization involving both a single phase (cDRX/1-phase) and multiple phases (cDRX/2-phase). A companion to other works that focus on modeling, manufacturing involving plastic and superplastic deformation, and control of texture and phase transformations, this book provides thorough explanations of microstructural development to lay the foundation for further study of the mechanisms of thermomechanical processes and their application.
Author: Christof Sommitsch
Publisher: MDPI
ISBN: 303651080X
Category : Technology & Engineering
Languages : en
Pages : 374
Get Book
Book Description
This book deals with metal processing and its numerical modelling and simulation. In total, 21 papers from different distinguished authors have been compiled in this area. Various processes are addressed, including solidification, TIG welding, additive manufacturing, hot and cold rolling, deep drawing, pipe deformation, and galvanizing. Material models are developed at different length scales from atomistic simulation to finite element analysis in order to describe the evolution and behavior of materials during thermal and thermomechanical treatment. Materials under consideration are carbon, Q&T, DP, and stainless steels; ductile iron; and aluminum, nickel-based, and titanium alloys. The developed models and simulations shall help to predict structure evolution, damage, and service behavior of advanced materials.
