Abstract
It is demonstrated that relatively well established developments of the collective interactions of moderately concentrated solute atoms with a dislocation can furnish a satisfactory model for the thermally assisted motion of dislocations through such solute fields and provide insight into the concept of “stress equivalence” exhibited by binary fcc alloys. This is consistent with known dependencies of the plastic shear resistance on temperature and the universal dependence of the activation volume on flow stress alone, for a large family of binary fcc alloys of different solute concentration. Both the successful features of the model and some of its shortcomings are discussed.
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This study which was unsupported, is a by-product of a chapter of a book in preparation, to be published by Oxford University Press in 2004. I am grateful to Prof. R. Abeyaratne and Dean T. Magnanti for their continued support of this project. I also thank Mr. Jin Yi for his help in the preparation of this paper.
References
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© 2004 Carl Hanser Verlag, München
Articles in the same Issue
- Frontmatter
- Editorial
- Editorial
- Articles Basic
- Thermally assisted motion of dislocations in solid solution-strengthened fcc alloys and the concept of “stress equivalence”
- From single to collective dislocation glide instabilities: A hierarchy of scales, embracing the Neumann strain bursts
- Geometry and surface state effects on the mechanical response of Au nanostructures
- Microstructural evolution and its effect on the mechanical properties of Cu–Ag microcomposites
- Deformation behaviour of strontium titanate between room temperature and 1800 K under ambient pressure
- The deformation response of ultra-thin polymer films on steel sheet in a tensile straining test: the role of slip bands emerging at the polymer/metal interface
- Influence of dissolved gas molecules on the size recovery kinetics of cold-rolled BPA-PC
- Comparison between Monte Carlo and Cluster Variation method calculations in the BCC Fe–Al system including tetrahedron interactions
- Experimental study and Cluster Variation modelling of the A2/B2 equilibria at the titanium-rich side of the Ti–Fe system
- Phases and phase equilibria in the Fe–Al–Zr system
- On the plate-like τ-phase formation in MnAl–C alloys
- Articles Applied
- The grain boundary hardness in austenitic stainless steels studied by nanoindentations
- The effect of grain size on the mechanical properties of nanonickel examined by nanoindentation
- Microstructures and mechanical properties of V–V3Si eutectic composites
- Grain boundary characterization and grain size measurement in an ultrafine-grained steel
- On the determination of the volume fraction of Ni4Ti3 precipitates in binary Ni-rich NiTi shape memory alloys
- Mechanical properties of NiAl–Cr alloys in relation to microstructure and atomic defects
- Characterization of the cyclic deformation behaviour and fatigue crack initiation on titanium in physiological media by electrochemical techniques
- Effect of prestraining on high-temperature fatigue behaviour of two Ni-base superalloys
- Influence of surface defects and edge geometry on the bending strength of slip-cast ZrO2 micro-specimens
- Tensile failure in a superplastic alumina
- Notifications/Mitteilungen
- Personal/Personelles
- Conferences/Konferenzen
Articles in the same Issue
- Frontmatter
- Editorial
- Editorial
- Articles Basic
- Thermally assisted motion of dislocations in solid solution-strengthened fcc alloys and the concept of “stress equivalence”
- From single to collective dislocation glide instabilities: A hierarchy of scales, embracing the Neumann strain bursts
- Geometry and surface state effects on the mechanical response of Au nanostructures
- Microstructural evolution and its effect on the mechanical properties of Cu–Ag microcomposites
- Deformation behaviour of strontium titanate between room temperature and 1800 K under ambient pressure
- The deformation response of ultra-thin polymer films on steel sheet in a tensile straining test: the role of slip bands emerging at the polymer/metal interface
- Influence of dissolved gas molecules on the size recovery kinetics of cold-rolled BPA-PC
- Comparison between Monte Carlo and Cluster Variation method calculations in the BCC Fe–Al system including tetrahedron interactions
- Experimental study and Cluster Variation modelling of the A2/B2 equilibria at the titanium-rich side of the Ti–Fe system
- Phases and phase equilibria in the Fe–Al–Zr system
- On the plate-like τ-phase formation in MnAl–C alloys
- Articles Applied
- The grain boundary hardness in austenitic stainless steels studied by nanoindentations
- The effect of grain size on the mechanical properties of nanonickel examined by nanoindentation
- Microstructures and mechanical properties of V–V3Si eutectic composites
- Grain boundary characterization and grain size measurement in an ultrafine-grained steel
- On the determination of the volume fraction of Ni4Ti3 precipitates in binary Ni-rich NiTi shape memory alloys
- Mechanical properties of NiAl–Cr alloys in relation to microstructure and atomic defects
- Characterization of the cyclic deformation behaviour and fatigue crack initiation on titanium in physiological media by electrochemical techniques
- Effect of prestraining on high-temperature fatigue behaviour of two Ni-base superalloys
- Influence of surface defects and edge geometry on the bending strength of slip-cast ZrO2 micro-specimens
- Tensile failure in a superplastic alumina
- Notifications/Mitteilungen
- Personal/Personelles
- Conferences/Konferenzen