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Micromechanism of cleavage fracture of metals : a comprehensive microphysical model for cleavage cracking in metals /
In this book the authors focus on the description of the physical nature of cleavage fracture to offer scientists, engineers and students a comprehensive physical model which vividly describes the cleavage microcracking processes operating on the local (microscopic) scale ahead of a defect. The desc...
| Clasificación: | Libro Electrónico |
|---|---|
| Autores principales: | , |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Oxford, England ; Waltham, Massachusetts :
Butterworth-Heinemann,
2015.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Micromechanism of Cleavage Fracture of Metals: A Comprehensive Microphysical Model for Cleavage Cracking in Metals; Copyright; Dedication; Contents; Acknowledgments; Preface; The motivation that inspired the authors to write this book resides in the following issues; Notes About This Book; Core Parts and Content; Arrangement of the Text; Supplemental Knowledge; Style of Description; Necessary Repeating; Acknowledgments; References; Chapter 1. Introduction; 1.1. Basic Concepts of Fracture; 1.1.1. Fracture Modes Under Various Stress States; 1.1.2. Cleavage Fracture.
- 1.1.3. Micromechanism of Cleavage Fracture1.2. Basic Theories Relevant to the Micromechanism of Cleavage Fracture; 1.2.1. Griffith Crack Theory; 1.2.2. Linear Elastic and Small-Scale Yielding Fracture Mechanics; 1.2.3. Elastic-Plastic Fracture Mechanics; 1.2.4. Concepts of Stress and Strain Concentrations, Stress Triaxiality, and Stress Intensification; 1.2.4.1. Concept of stress and strain concentrations; 1.2.4.2. Concept of stress triaxiality; 1.2.4.3. Concept of stress intensification; 1.2.5. Distributions of Stress and Strain Ahead of a Notch or a Precrack.
- 1.3. A Review of the Micromechanism of Cleavage Fracture of Steel1.3.1. Characteristics of Cleavage Fracture; 1.3.2. Cleavage Cracking Processes; 1.3.3. Cleavage Mechanisms and Criteria; 1.3.3.1. Mechanisms and criteria of crack nucleation; 1.3.3.2. Mechanisms and criteria of crack extension; 1.3.3.3. Distance criterion; 1.3.4. Critical Event for Cleavage Fracture; 1.3.4.1. Definition of critical event of cleavage fracture; 1.3.4.2. Critical event for cleavage fracture; 1.3.4.3. Variation of the critical event; References; Chapter 2. Methodology; 2.1. Materials; 2.2. Global Mechanical Tests.
- 2.2.1. Tensile Tests2.2.2. Compression Tests; 2.2.3. Four-Point Bending (4PB) Test of Notched Specimen; 2.2.4. Charpy V Impact Test; 2.2.5. Three-Point Bending (3PB) COD Test of Precracked Specimen; 2.2.6. Loading-Unloading-Reloading Tests; 2.2.7. Tests at Various Loading Rates; 2.2.8. Fatigue Tensile Tests of TiAl Alloy; 2.3. Microscopic Tests and Observations; 2.3.1. In Situ Tensile Tests; 2.3.2. Observations of the Metallographic Sections for Identifying the Crack Initiation Region and the Critical Event for ...
- 2.3.3. Observations of the Fracture Surfaces by the Scanning Electron Microscope2.3.4. Measurement of the Microscopic Parameters on the Fracture Surface; 2.3.5. Locating the Site of Cleavage Cracking Initiation and Measuring Its Distance from the Blunted Notch Root or the Prec ... ; 2.3.6. Observation on the Edge Formed by Intersection of the Fracture Surface and the Metallographic Section Cut Through th ... ; 2.3.7. Drawing the Map of Crack Propagation on the Fracture Surface; 2.3.8. Identification of the Second-Phase Particle Initiating the Cleavage Cracking.