Dislocations, mesoscale simulations and plastic flow /
Kubin, L.,
Dislocations, mesoscale simulations and plastic flow / by Ladislas Kubin. - Oxford : Oxford University Press, 2013. - 1 online resource - Oxford series on materials modelling ; 5 . - Oxford series on materials modelling ; 5. .
Includes bibliographical references and index.
Machine generated contents note: 1. Background and Definitions -- 1.1. Introduction -- 1.2. Dislocation core properties -- 1.2.1. Core energy and structure -- 1.2.2. Cross-slip and the lattice resistance -- 1.3. Elastic properties of dislocations -- 1.3.1. Strain energy of a straight dislocation -- 1.3.2. Force on a dislocation -- 1.3.3. Line tension -- 1.3.4. Line tension strengthening -- 1.4. Dislocation velocity -- 1.4.1. Effective stress -- 1.4.2. Governing mechanisms -- 1.4.3. Orowan's law -- 1.5. Multiscale modelling -- 1.6. Introduction to 3D DD simulations -- 1.6.1. Brief historical sketch -- 1.6.2. Further implementation -- 2. Obstacle-controlled Plastic Flow -- 2.1. Outline -- 2.2. Free-flight velocity -- 2.2.1. The Peierls stress in fcc metals -- 2.2.2. Phonon drag -- 2.3. Dislocation -- dislocation interactions -- 2.3.1. Short-range interactions in fcc crystals -- 2.3.2. Junction formation and destruction -- 2.3.3. Jogs -- 2.4. Cross-slip in fee crystals -- 2.4.1. Models for compact cross-slip. Note continued: 2.4.2. The Friedel-Escaig mechanism -- 2.4.3. The activation energy for cross-slip -- 2.4.4. Escaig's effect and Escaig's barrier -- 2.4.5. Experimental checks -- 2.4.6. Stress-free constriction energies -- 2.4.7. Atomistic studies of cross-slip -- 2.4.8. The multiple roles of cross-slip -- 2.5. Flow stress and dislocation densities -- 2.5.1. Dislocation strengthening -- 2.5.2. Forest strengthening -- 2.5.3. Jog strengthening -- 2.5.4. Generalized dislocation strengthening -- 2.6. Mechanical response and microstructures -- 2.6.1. Resolved stress-strain curves -- 2.6.2. Stage I -- 2.6.3. Stage II -- 2.6.4. Stage III -- 2.6.5. Stage IV -- 2.6.6. Similitude and self-similarity -- 2.6.7. The storage-recovery model -- 2.7. Collective dislocation behaviour -- 2.7.1. The modelling of dislocation patterns -- 2.7.2. Dislocation avalanches -- 3. Lattice-controlled Plastic Flow -- 3.1. Outline -- 3.2. The lattice resistance in bcc metals -- 3.2.1. Deformation properties of bcc metals. Note continued: 3.2.2. Core structure of screw dislocations -- 3.2.3. Non-Schmid effects and Peierls stresses -- 3.2.4. Kink-pair mechanisms and models -- 3.2.5. Strengthening and softening in bcc metals -- 3.3. Prismatic slip in hcp metals -- 3.3.1. Slip systems and screw dislocation cores -- 3.3.2. The Peierls stress in Ti and Zr -- 3.3.3. Locking-unlocking in hcp metals -- 3.4. Dislocations in silicon -- 3.4.1. Introduction -- 3.4.2. Dislocations in the diamond cubic lattice -- 3.4.3. Dislocation cores in the glide set -- 3.4.4. Experimental methods -- 3.4.5. The multiplication yield point of silicon -- 3.4.6. Velocities in the kink-diffusion model -- 3.4.7. Dislocation velocities and activation energies -- 3.4.8. The length-independent regime -- 3.4.9. Dislocations at high stress -- 4.A Guide to 3D DD Simulations -- 4.1. Introduction -- 4.2. Elastic properties -- 4.2.1. Outline -- 4.2.2. Discretization of dislocation lines -- 4.2.3. Local procedures and optimization -- 4.2.4. Core fields. Note continued: 4.2.5. The self-stress -- 4.2.6. From self-stress to effective stress -- 4.2.7. Further optimization -- 4.2.8. Elastic anisotropy -- 4.2.9. Dissociated dislocations -- 4.3. Local rules -- 4.3.1. Outline -- 4.3.2. Dislocation mobility and velocity -- 4.3.3. Dislocation cross-slip -- 4.3.4. Other local rules -- 4.4. Boundary conditions -- 4.4.1. Periodic boundary conditions -- 4.4.2. Finite boundary conditions -- 4.4.3. Other methods for finite sizes -- 4.5. Current 3D DD simulations -- 5. Applications of DD Simulations -- 5.1. Outline -- 5.2. Dislocation intersections -- 5.2.1. Intersections and reactions -- 5.2.2. The interaction coefficients -- 5.3. Atomic-scale defects, precipitation strengthening -- 5.3.1. Dislocations and solute atoms -- 5.3.2. Dislocations and irradiation defects -- 5.3.3. Dislocation climb -- 5.3.4. Precipitation strengthening -- 5.4. Collective dislocation processes -- 5.4.1. Intermittency and avalanches -- 5.4.2. From intermittent to continuous flow. Note continued: 5.4.3. Dislocation patterns -- 5.4.4. Patterning in cyclic deformation -- 5.4.5. Shock loading, high strain rates -- 5.5. Size effects in plasticity -- 5.5.1. Introduction -- 5.5.2.A few examples -- 5.5.3. The silicon world -- 5.5.4. Thin metallic films -- 5.5.5. Small-scale pillars -- 5.6. Concluding remarks -- Appendices -- A. Thermal Activation of Dislocation Motion -- A.1. Mesoscale framework -- A.2. Orders of magnitude -- B. Selection of Materials Constants -- B.1. Stacking fault energies, dissociation widths -- B.2. Elastic constants, shear moduli -- C. Slip in Single Crystals -- C.1. The Peach-Koehler force -- C.2. Schmid's law, lattice rotation -- C.3. Active slip systems in fcc crystals -- D. From [gamma]-surface to Peierls Stress -- E. Kink-pair Models -- E.1. Dislocations and Peierls potentials -- E.2. High-stress solutions -- E.3. Kink-pairs at low stresses -- E.4. The kink-diffusion model.
Dislocation dynamics simulations are becoming accessible to a wide range of users. This book presents to students and researchers in materials science and mechanical engineering a comprehensive coverage of the physical body of knowledge on which they are based.
English.
9780191664540 (electronic bk.) 0191664545 (electronic bk.) 9780191756238 (electronic bk.) 0191756237 (electronic bk.)
99966509330
GBB2C7199 bnb
016233150 Uk
Dislocations in crystals--Computer simulation.
Materials.
Materials science.
Matériaux.
Science des matériaux.
Dislocations dans les cristaux--Simulation par ordinateur.
SCIENCE--Physics--Crystallography.
Materials.
Materials science.
Electronic books.
QD921
548.8420113
Dislocations, mesoscale simulations and plastic flow / by Ladislas Kubin. - Oxford : Oxford University Press, 2013. - 1 online resource - Oxford series on materials modelling ; 5 . - Oxford series on materials modelling ; 5. .
Includes bibliographical references and index.
Machine generated contents note: 1. Background and Definitions -- 1.1. Introduction -- 1.2. Dislocation core properties -- 1.2.1. Core energy and structure -- 1.2.2. Cross-slip and the lattice resistance -- 1.3. Elastic properties of dislocations -- 1.3.1. Strain energy of a straight dislocation -- 1.3.2. Force on a dislocation -- 1.3.3. Line tension -- 1.3.4. Line tension strengthening -- 1.4. Dislocation velocity -- 1.4.1. Effective stress -- 1.4.2. Governing mechanisms -- 1.4.3. Orowan's law -- 1.5. Multiscale modelling -- 1.6. Introduction to 3D DD simulations -- 1.6.1. Brief historical sketch -- 1.6.2. Further implementation -- 2. Obstacle-controlled Plastic Flow -- 2.1. Outline -- 2.2. Free-flight velocity -- 2.2.1. The Peierls stress in fcc metals -- 2.2.2. Phonon drag -- 2.3. Dislocation -- dislocation interactions -- 2.3.1. Short-range interactions in fcc crystals -- 2.3.2. Junction formation and destruction -- 2.3.3. Jogs -- 2.4. Cross-slip in fee crystals -- 2.4.1. Models for compact cross-slip. Note continued: 2.4.2. The Friedel-Escaig mechanism -- 2.4.3. The activation energy for cross-slip -- 2.4.4. Escaig's effect and Escaig's barrier -- 2.4.5. Experimental checks -- 2.4.6. Stress-free constriction energies -- 2.4.7. Atomistic studies of cross-slip -- 2.4.8. The multiple roles of cross-slip -- 2.5. Flow stress and dislocation densities -- 2.5.1. Dislocation strengthening -- 2.5.2. Forest strengthening -- 2.5.3. Jog strengthening -- 2.5.4. Generalized dislocation strengthening -- 2.6. Mechanical response and microstructures -- 2.6.1. Resolved stress-strain curves -- 2.6.2. Stage I -- 2.6.3. Stage II -- 2.6.4. Stage III -- 2.6.5. Stage IV -- 2.6.6. Similitude and self-similarity -- 2.6.7. The storage-recovery model -- 2.7. Collective dislocation behaviour -- 2.7.1. The modelling of dislocation patterns -- 2.7.2. Dislocation avalanches -- 3. Lattice-controlled Plastic Flow -- 3.1. Outline -- 3.2. The lattice resistance in bcc metals -- 3.2.1. Deformation properties of bcc metals. Note continued: 3.2.2. Core structure of screw dislocations -- 3.2.3. Non-Schmid effects and Peierls stresses -- 3.2.4. Kink-pair mechanisms and models -- 3.2.5. Strengthening and softening in bcc metals -- 3.3. Prismatic slip in hcp metals -- 3.3.1. Slip systems and screw dislocation cores -- 3.3.2. The Peierls stress in Ti and Zr -- 3.3.3. Locking-unlocking in hcp metals -- 3.4. Dislocations in silicon -- 3.4.1. Introduction -- 3.4.2. Dislocations in the diamond cubic lattice -- 3.4.3. Dislocation cores in the glide set -- 3.4.4. Experimental methods -- 3.4.5. The multiplication yield point of silicon -- 3.4.6. Velocities in the kink-diffusion model -- 3.4.7. Dislocation velocities and activation energies -- 3.4.8. The length-independent regime -- 3.4.9. Dislocations at high stress -- 4.A Guide to 3D DD Simulations -- 4.1. Introduction -- 4.2. Elastic properties -- 4.2.1. Outline -- 4.2.2. Discretization of dislocation lines -- 4.2.3. Local procedures and optimization -- 4.2.4. Core fields. Note continued: 4.2.5. The self-stress -- 4.2.6. From self-stress to effective stress -- 4.2.7. Further optimization -- 4.2.8. Elastic anisotropy -- 4.2.9. Dissociated dislocations -- 4.3. Local rules -- 4.3.1. Outline -- 4.3.2. Dislocation mobility and velocity -- 4.3.3. Dislocation cross-slip -- 4.3.4. Other local rules -- 4.4. Boundary conditions -- 4.4.1. Periodic boundary conditions -- 4.4.2. Finite boundary conditions -- 4.4.3. Other methods for finite sizes -- 4.5. Current 3D DD simulations -- 5. Applications of DD Simulations -- 5.1. Outline -- 5.2. Dislocation intersections -- 5.2.1. Intersections and reactions -- 5.2.2. The interaction coefficients -- 5.3. Atomic-scale defects, precipitation strengthening -- 5.3.1. Dislocations and solute atoms -- 5.3.2. Dislocations and irradiation defects -- 5.3.3. Dislocation climb -- 5.3.4. Precipitation strengthening -- 5.4. Collective dislocation processes -- 5.4.1. Intermittency and avalanches -- 5.4.2. From intermittent to continuous flow. Note continued: 5.4.3. Dislocation patterns -- 5.4.4. Patterning in cyclic deformation -- 5.4.5. Shock loading, high strain rates -- 5.5. Size effects in plasticity -- 5.5.1. Introduction -- 5.5.2.A few examples -- 5.5.3. The silicon world -- 5.5.4. Thin metallic films -- 5.5.5. Small-scale pillars -- 5.6. Concluding remarks -- Appendices -- A. Thermal Activation of Dislocation Motion -- A.1. Mesoscale framework -- A.2. Orders of magnitude -- B. Selection of Materials Constants -- B.1. Stacking fault energies, dissociation widths -- B.2. Elastic constants, shear moduli -- C. Slip in Single Crystals -- C.1. The Peach-Koehler force -- C.2. Schmid's law, lattice rotation -- C.3. Active slip systems in fcc crystals -- D. From [gamma]-surface to Peierls Stress -- E. Kink-pair Models -- E.1. Dislocations and Peierls potentials -- E.2. High-stress solutions -- E.3. Kink-pairs at low stresses -- E.4. The kink-diffusion model.
Dislocation dynamics simulations are becoming accessible to a wide range of users. This book presents to students and researchers in materials science and mechanical engineering a comprehensive coverage of the physical body of knowledge on which they are based.
English.
9780191664540 (electronic bk.) 0191664545 (electronic bk.) 9780191756238 (electronic bk.) 0191756237 (electronic bk.)
99966509330
GBB2C7199 bnb
016233150 Uk
Dislocations in crystals--Computer simulation.
Materials.
Materials science.
Matériaux.
Science des matériaux.
Dislocations dans les cristaux--Simulation par ordinateur.
SCIENCE--Physics--Crystallography.
Materials.
Materials science.
Electronic books.
QD921
548.8420113