Microstructure and Mechanical Behavior of Deep Drawing DC04 Steel at Different Length Scales PDF Download
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Author: Simone Schreijäg
Publisher: KIT Scientific Publishing
ISBN: 3866449674
Category : Technology & Engineering
Languages : en
Pages : 188
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Book Description
The deformation behavior of steels is strongly influenced by their microstructure which is a result of the alloying elements and thermal treatments. In this work, the microstructure and the deformation behavior of a non-alloyed deep drawing DC04 steel was investigated. The microstructure was analyzed during heat treatment by EBSD, then microcompression experiments were performed on selected microstructural units and then bulk steel samples were mechanically tested by tensile experiments.
Author: Simone Schreijäg
Publisher: KIT Scientific Publishing
ISBN: 3866449674
Category : Technology & Engineering
Languages : en
Pages : 188
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Book Description
The deformation behavior of steels is strongly influenced by their microstructure which is a result of the alloying elements and thermal treatments. In this work, the microstructure and the deformation behavior of a non-alloyed deep drawing DC04 steel was investigated. The microstructure was analyzed during heat treatment by EBSD, then microcompression experiments were performed on selected microstructural units and then bulk steel samples were mechanically tested by tensile experiments.
Author: Vicky Duckworth
Publisher: Routledge
ISBN: 9781000032161
Category : Education
Languages : en
Pages : 0
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Book Description
This volume makes a timely contribution to our understanding of literacy as a multi-faceted, complexly situated activity. Each chapter provides the reader with a fresh perspective into a different site for literate behaviour, approaches, design and relationships, and offers an exploration into the use of literacy theories to inform policy and practice, particularly in regard to curriculum. Bringing together international experts in the field, the contributing authors represent a wide variety of theoretical and research perspectives which cover literacy in various forms, including: • transformative literacy • survey literacy • academic literacies • information literacy in the workplace • digital literacy. Landscapes of Specific Literacies in Contemporary Society suggests that literacy curriculum needs to evolve from its current perspective if it is to cater for the demands of the 21st century contemporary globalised society. The book will be of key interest to researchers and academics in the fields of education, curriculum studies and the sociology of education, as well as to policy makers and literacy specialists.
Author: Rieger, Florian
Publisher: KIT Scientific Publishing
ISBN: 3731505134
Category : Technology (General)
Languages : en
Pages : 202
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Book Description
Dual-phase steels exhibit good mechanical properties due to a microstructure of strong martensitic inclusions embedded in a ductile ferritic matrix. This work presents a two-scale model for the underlying work-hardening effects; such as the distinctly different hardening rates observed for high-strength dual-phase steels. The model is based on geometrically necessary dislocations and comprises the average microstructural morphology as well as a direct interaction between the constituents.
Author: Vondrous, Alexander
Publisher: KIT Scientific Publishing
ISBN: 3731502801
Category : Technology (General)
Languages : en
Pages : 162
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Book Description
This book summarizes the found insights of grain growth behavior, of multidimensional decomposition for regular grids to efficiently parallelize computing and how to simulate recrystallization by coupling the finite element method with the phase-field method for microstructure texture analysis. The frame of the book is created by the phase-field method, which is the tool used in this work, to investigate microstructure phenomena.
Author: Syha, Melanie
Publisher: KIT Scientific Publishing
ISBN: 3731502429
Category : Science
Languages : en
Pages : 178
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Book Description
Understanding the physical processes during fabrication and annealing of ceramic materials is a long sought goal among material scientists. Using strontium titanate as a model system for perovskite ceramics, the present work combines advanced non-destructive 3D characterization techniques and computational modeling of microstructure evolution in order to link grain morphology, interface anisotropy and microstructure evolution to macroscopic physical properties .
Author: Schwark, Tabea Gisela
Publisher: KIT Scientific Publishing
ISBN: 3731507595
Category : Grinding and polishing
Languages : en
Pages : 178
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Book Description
Soft Magnetic Composites (SMCs) typically consist of large iron particles coated with a fairly thin inorganic layer. The combination of soft particles with a brittle layer causes, however, a rather poor mechanical behaviour of the SMCs. The particle boundaries of the specific SMC Somaloy 700 3P can be classified into four different types according to the complexity of their layers. Tests on both micro- and macroscale showed that the particle-boundary interface is critical in terms of failure.
Author: Zhang, Kuo
Publisher: KIT Scientific Publishing
ISBN: 3731505037
Category : Technology (General)
Languages : en
Pages : 224
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Book Description
In this work, the ratcheting-behavior of 9%Cr-1%Mo ferritic-martensitic steel is studied with uniaxial cyclic loading. To describe the ratcheting-behavior of this steel, a visco-plastic constitutive model with consideration of cyclic softening of Reduced Activation Ferritic Martensitic steels is further modified, based on the analysis of back stress.
Author: Eslami, Reza
Publisher: KIT Scientific Publishing
ISBN: 3731505835
Category : Technology (General)
Languages : en
Pages : 142
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Book Description
The grain microstructure and damage mechanisms at the grain level are the key factors that influence fatigue of metals at small scales. This is addressed in this work by establishing a new micro-mechanical model for prediction of multiaxial high cycle fatigue (HCF) at a length scale of 5-100?m. The HCF model considers elasto-plastic behavior of metals at the grain level and microstructural parameters, specifically the grain size and the grain orientation.
Author: Zhang, Tao
Publisher: KIT Scientific Publishing
ISBN: 3731510022
Category : Technology & Engineering
Languages : en
Pages : 224
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Book Description
Most storage materials exhibit phase changes, which cause stresses and, thus, lead to damage of the electrode particles. In this work, a phase-field model for the cathode material NaxFePO4 of Na-ion batteries is studied to understand phase changes and stress evolution. Furthermore, we study the particle size and SOC dependent miscibility gap of the nanoscale insertion materials. Finally, we introduce the nonlocal species concentration theory, and show how the nonlocality influences the results.
Author: Ganser, Markus
Publisher: KIT Scientific Publishing
ISBN: 3731510472
Category : Technology & Engineering
Languages : en
Pages : 272
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Book Description
Solid state batteries with a lithium metal electrode are considered the next generation of high energy battery technology. Unfortunately, lithium metal is prone to harmful protrusion or dendrite growth which causes dangerous cell failure. Within this work the problem of protrusion growth is tackled by deriving a novel electro-chemo-mechanical theory tailored for binary solid state batteries which is then used to discuss the impact of mechanics on interface stability by numerical studies.
