Fundamental Aspects of Dislocation Interactions

Low-Energy Dislocation Structures III

G. Kostorz, H. A. Calderon, J. L. Martin, G. Kostorz, H. A. Calderon, J. L. Martin

• Publisher: Elsevier
• Year: 2013
• Print ISBN:
  9781483228150
• eBook ISBN:
  9781483274928
• Topic: Technology & Engineering
• Subtopic: Engineering General
• Index: Technology & Engineering

Fundamental Aspects of Dislocation Interactions: Low-Energy Dislocation Structures III covers the papers presented at a European Research Conference on Plasticity of Materials-Fundamental Aspects of Dislocation Interactions: Low-Energy Dislocation Structures III, held on August 30-September 4, 1992 in Ascona, Switzerland. The book focuses on the processes, technologies, reactions, transformations, and approaches involved in dislocation interactions. The selection first offers information on work softening and Hall-Petch hardening in extruded mechanically alloyed alloys and dynamic origin of dislocation structures in deformed solids. Discussions focus on stress-strain behavior in relation to composition, structure, and annealing; comparison of stress-strain curves with work softening theory; sweeping and trapping mechanism; and model of dipolar wall structure formation. The text then ponders on plastic instabilities and their relation to fracture and dislocation and kink dynamics in f.c.c. metals studied by mechanical spectroscopy. The book takes a look at misfit dislocation generation mechanisms in heterostructures and evolution of dislocation structure on the interfaces associated with diffusionless phase transitions. Discussions focus on dislocation representation of a wall of elastic domains; equation of equilibrium of an elastic domain; transformation of dislocations; and theoretical and experimental background. The selection is a valuable reference for readers interested in dislocation interactions.

Table of contents

• Cover image
• Title page
• Table of Contents
• Copyright
• Preface
• Organizing Committee
• Chapter 1: Work softening and Hall-Petch hardening in extruded mechanically alloyed alloys
• Chapter 2: On the dynamic origin of dislocation structures in deformed solids
• Chapter 3: Modelling the spatiotemporal aspects of the Portevin-Le Châtelier effect
• Chapter 4: Plastic instabilities and their relation to fracture
• Chapter 5: Dislocation and kink dynamics in f.c.c. metals studied by mechanical spectroscopy
• Chapter 6: Screened disclinations in solids
• Chapter 7: Mechanisms of yield stress anomalies in beryllium and Ni3 Al
• Chapter 8: Collective behavior and superdislocation motion in L12 alloys
• Chapter 9: Structure and characterization of the dislocations in tilt grain boundaries between Σ = 1 and Σ = 3: a high resolution electron microscopy study
• Chapter 10: Misfit dislocation generation mechanisms in heterostructures
• Chapter 11: Evolution of dislocation structure on the interfaces associated with diffusionless phase transitions
• Chapter 12: Dislocation loops at crack tips: nucleation and growth—an experimental study in silicon
• Chapter 13: Dislocation dynamics and brittle-to-ductile transitions
• Chapter 14: Internal stresses and scaling laws
• Chapter 15: Deformation, structure and properties of ceramics and crystals of high-Tc superconductors
• Chapter 16: Structure and mobility of polygonized dislocation walls in high purity aluminium
• Chapter 17: Deformation mechanisms of a ferritic-martensitic steel between 290 and 870 K
• Chapter 18: On the effect of nitrogen on the dislocation structure of austenitic stainless steel
• Chapter 19: Dislocation cell structures in copper in torsion and tension
• Chapter 20: Dislocation distributions as seen by X-ray line profiles
• Chapter 21: The influence of dislocations on electrical resistivity anomalies in palladium alloys
• Chapter 22: Dislocation structure in L12 long-range-ordered Ni3(Al, Ti) deformed in the temperature regime between –196°C and 800°C
• Chapter 23: Dynamic recovery of the microstructure of screw dislocations in high purity b.c.c. metals
• Chapter 24: Heterogeneous dislocation loop nucleation and free surface effects on plastic deformation: an in situ transmission electron microscopy study
• Chapter 25: Effect of precipitation on the development of dislocation substructure in low carbon steels during cold deformation
• Chapter 26: Transformation of dislocation patterns in fatigued copper single crystals
• Chapter 27: Dislocation activity and differences between tensile and compressive creep of yttria doped alumina
• Chapter 28: High temperature deformation behavior of an Al-Fe-V-Si alloy
• Chapter 29: Dislocation-associated elastic energy storage in mechanical deformations
• Chapter 30: Dislocation structure and corduroy contrast in a 316L alloy fatigued at (0.3–0.5) Tm
• Chapter 31: On sequences of stable and unstable regions of flow along stress–strain curves of solid solutions—experiments on Cu–Mn polycrystals
• Chapter 32: Plastic deformation of single glide oriented Cu–2 to 15at.%Al crystals at elevated temperatures
• Chapter 33: Onset mechanisms of discontinuous flow at low temperatures in one-and two-phase Cu–Be alloys
• Chapter 34: Hardening and softening in Zr–Sn polycrystals
• Chapter 35: Low-temperature abrupt deformation processes in metals: kinetic and statistical properties observed by means of electronic response
• Chapter 36: Rheological behaviour of mild steel under monotonie loading conditions and cross-loading
• Chapter 37: The Portevin–Le Châtelier effect in Al–2.92%Mg–0.38%Mn alloy and linear location of acoustic emission
• Chapter 38: Stress corrosion microcleavage in a ductile f.c.c. alloy
• Chapter 39: Dislocation-controlled stable crack growth in Mo and MgO
• Chapter 40: Low-energy dislocations and ductility of ferritic steels
• Chapter 41: The peak of flow stress in the L12 structure and the elimination of Kear-Wilsdorf locks
• Chapter 42: Calculation of cross-slip parameters in f.c.c. crystals
• Chapter 43: Modelling high temperature creep of academic and industrial materials using the composite model
• Chapter 44: Dynamical model of the wall structure in persistent slip bands of fatigued metals: I. Dynamical model of edge dislocation walls
• Chapter 45: Investigation of the formation of dislocation cell structures and the strain hardening of metals by computer simulation
• Chapter 46: Role of the secondary slip system in a computer simulation model of the plastic behaviour of single crystals
• Chapter 47: Low-temperature dislocation internal friction in crystals
• Chapter 48: Ultrasonic study of the interaction potential between a dislocation and a single solute atom
• Chapter 49: Effects of magnetic fields on the dislocation unlocking from paramagnetic centers in non-magnetic crystals
• Chapter 50: A dislocation model for internal damping due to the thermal expansion mismatch between matrix and particles in microheterogeneous materials
• Chapter 51: Interaction between dislocations and precipitates in an Al–Li alloy
• Chapter 52: Comparison between simulation calculations and measurements concerning athermal yielding of precipitation hardening of Cu-Co single crystals
• Chapter 53: Dislocation-point defects interaction in semiconductors and kink mobility
• Chapter 54: Softening of α-iron by solute nitrogen atoms investigated between 30 and 300 K by use of stress-relaxation measurements
• Chapter 55: Mechanisms of dislocation motion and multiplication in ionic and semiconductor crystals
• Chapter 56: Dislocation substructures in plastically deformed A1N
• Chapter 57: The influence of Peierls relief on low-temperature plasticity of CdTe single crystals
• Chapter 58: A new internal friction peak and the problem of the Peierls potential in f.c.c. metals
• Chapter 59: A method for simulating electron microscope dislocation images
• Chapter 60: On the relationship between unusual mechanical properties and deformation substructures in ordered Ni3Al
• Chapter 61: A weak beam study of the dislocation structure in directionally solidified Ni3Al during deformation
• Chapter 62: Dislocation core structures in the ordered intermetallic alloy TiAl
• Chapter 63: Observations of dislocations relevant to the anomalous yield stress in L12 alloys
• Chapter 64: Transmission electron microscope in situ deformation of MC2 superalloy at room temperature
• Chapter 65: Substructure of dislocations in the (111) plane in Ni3Ga single crystals
• Chapter 66: The stress fields of edge dislocations near wedge-shaped boundaries and bonded wedges
• Chapter 67: Interactions between lattice dislocations and grain boundaries in L12 ordered compounds investigated by in situ transmission electron microscopy and computer modelling experiments
• Chapter 68: Arrangement of misfit dislocations at Ti3Al/TiAl phase boundaries
• Chapter 69: Image forces on dislocations: the elastic modulus effect
• Chapter 70: Misfit dislocations and other defects in thin films
• Chapter 71: Twin propagation in TiAl
• Chapter 72: Changes in stacking fault sequences during the martensitic phase transformation in Cu-Zn-Al shape memory alloys
• Chapter 73: Twins and properties of classical and high- Tc superconductors
• Author Index of Volume 164
• Subject Index of Volume 164