Environment Sensitive Fracture
2013
The sections in this article are
Introduction
Phenomenology of Environmentally Assisted Cracking (EAC)
Examples of EAC
Phenomenology of Stress Corrosion Cracking (SCC)
Material/Environment Systems
Crack Morphology
Mechanical Stress
Initiation Versus Propagation
Crack Propagation
Temperature
Material Composition and Structure
Phenomenology of Corrosion Fatigue
Crack Initiation
Crack Propagation
Role of Surface Films in Environmentally Assisted Cracking
The Effect of Surface Films on the Fatigue behavior in Air
The Effect of Protective Surface Films in Stress Corrosion Cracking
Dealloyed Surface Films
Crack Tip Environments
Corrosion of Crack Faces
Modeling the Crack Tip Environment
An Example of Corrosion Fatigue
Review of Localized Corrosion–Deformation Interactions
Influence of Dissolution on the Mechanical Behavior
Influence of Plasticity on Dissolution Processes
An Example of Mechanical and Electrochemical Coupling Effects
Cyclic Deformation Mechanisms in Air
Influence of 3.5% NaCl Solution
Hydrogen-Dislocation Interactions
Introduction
Stress-Assisted Diffusion of Hydrogen
Hydrogen Interaction with One Edge Dislocation
Steady State Repartition of Hydrogen
Temperature Dependence
Stress Induced in the Slip Plane by Hydrogen
Hydrogen Interaction with Two Edge Dislocations
Hydrogen Effect on the Cross Slip Ability
Environmentally Assisted Cracking (EAC) Models
Film Rupture/Slip Dissolution Model
Film Rupture/Slip Dissolution Mechanism
Applying the Model to Practical Problems
Limitations of the Film Rupture–Slip Dissolution Model
Film Induced Cleavage Model
Corrosion Assisted Cleavage Model
Hydrogen Assisted Cracking Models
Decohesion Models
Hydrogen Induced Plasticity Models
Corrosion Enhanced Plasticity Model
Modeling
Numerical Simulation of the Mobile Obstacle
Conclusions
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