Fracture at High Temperatures

Front Matter....Pages I-XVII
Front Matter....Pages 1-1
Summary of the Deformation Behavior Under Creep Conditions....Pages 3-13
Introduction to Creep Fracture and Other Fracture Modes....Pages 14-26
The Continuum-Mechanical Equations....Pages 27-39
Stress-Directed Diffusion and Surface Diffusion....Pages 40-47
Front Matter....Pages 49-49
Introduction to Part II....Pages 51-66
Nucleation of Creep Cavities/Basic Theories....Pages 67-84
Cavity Nucleation by Stress Concentrations During Creep....Pages 85-115
The Role of Impurity Segregation in Cavity Nucleation....Pages 116-130
Cavity Nucleation Assisted by Internal Gas Pressure....Pages 131-139
Internal Stresses Due to the Precipitation of Solid Phases and Thermal Expansion....Pages 140-147
Diffusive Cavity Growth....Pages 148-171
Constrained Diffusive Cavitation of Grain Boundaries....Pages 172-197
Inhibited Cavity Growth....Pages 198-200
Cavity Growth by Creep Flow of the Grains or by Grain Boundary Sliding....Pages 201-214
Creep-Enhanced Diffusive Cavity Growth and Elastic Accommodation....Pages 215-224
The Cavity Size Distribution Function for Continuous Cavity Nucleation. Rupture Lifetimes and Density Changes....Pages 225-241
Summary of Results on Cavity Nucleation and Growth....Pages 242-246
Grain Boundary Cavitation Under Creep-Fatigue Conditions....Pages 247-260
Front Matter....Pages 261-261
Introduction to Part III....Pages 263-266
Nonlinear Viscous Materials and the Use of C*....Pages 267-271
Front Matter....Pages 261-261
C*-Controlled Creep Crack Growth by Grain-Boundary Cavitation....Pages 272-285
Specimen Size Requirements for C*-Testing Caused by Crack-Tip Blunting and by 3-D Effects....Pages 286-300
Elastic/Nonlinear Viscous Materials. Applicability of K I , and C*....Pages 301-326
Instantaneous Plasticity....Pages 327-331
Primary-Creep Effects....Pages 332-345
Diffusion Creep....Pages 346-348
A Damage Mechanics Approach to Creep Crack Growth....Pages 349-363
Creep-Fatigue Crack Growth....Pages 364-387
Back Matter....Pages 387-418