G. Kostorz

H. A. Calderon

J. L. Martin

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.

Low-Energy Dislocation Structures III

Fundamental Aspects of Dislocation Interactions

For all kinds of materials, phase transformations show common phenomena and mechanisms, and often turn a material, for example metals, multiphase alloys, ceramics or composites, into its technological useful form. The physics and thermodynamics of a transformation from the solid to liquid state or from one crystal form to another are therefore essential for creating high-performance materials. This handbook covers phase transformations, a general phenomenon central to understanding the behavior of materials and for creating high-performance materials. It will be an essential reference for all materials scientists, physicists and engineers involved in the research and development of new high performance materials. It is the revised and enhanced edition of the renowned book edited by the late P. Haasen in 1990 (Vol. 5, Materials Science and Technology).

Phase Transformations in Materials

P. Haasen

V. Gerold

Strength of Metals and Alloys is a collection of papers presented at the 5th International Conference on the Strength of Metals and Alloys held in Aachen, Germany, on August 27-31, 1979. Contributors explore advances that have been made in understanding the strength of metals and alloys and cover topics ranging from plasticity and crystal structure to microstructural models for friction and wear; dynamical effects in deformation; and microscopic mechanisms of metal fatigue. This volume is comprised of 13 chapters and begins with an analysis of the differences between the plastic deformation of face-centered cubic, hexagonal close-packed, and body-centered cubic metals in relation to intrinsic dislocation mobilities resulting from the interaction of the dislocation core with the crystal lattice. The reader is then introduced to dislocation models for fatigue and their application to cases of friction and wear. The following chapters focus on the mechanisms controlling the creep of single phase metals and alloys; precipitation and dispersion hardening; deformation of polycrystals; solid solution hardening; and superposition of alloy hardening, strain hardening, and dynamic recovery. The results of in situ deformation experiments using high-voltage electron microscopy are also presented. The final chapter is devoted to the mechanisms underlying the recovery and recrystallization of doped tungsten. This monograph will be a valuable resource for metallurgists and materials scientists.

G. Kostorz

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