Nanostructured Materials By High-Pressure Severe Plastic Deformation
This book collects 42 peer-reviewed papers presented in the NATO Advanced Research Workshop on Nanostructured Materials by High-Pressure Severe Plastic Deformation, held in Donetsk, Ukraine, September 22-24, 2004. \ \ Recently, it was reported that nanostructured materials processed under high pressure by HPT and ECAP have an extraordinary combination of both high strength and high ductility, which are two desirable, but rarely co-existing properties. These findings indicate that...
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This book collects 42 peer-reviewed papers presented in the NATO Advanced Research Workshop on Nanostructured Materials by High-Pressure Severe Plastic Deformation, held in Donetsk, Ukraine, September 22-24, 2004. Recently, it was reported that nanostructured materials processed under high pressure by HPT and ECAP have an extraordinary combination of both high strength and high ductility, which are two desirable, but rarely co-existing properties. These findings indicate that high-pressure is a critical factor that can be employed to process nanostructured materials with superior mechanical, and possibly also physical, properties. It is the objective of this workshop to review our current knowledge, identify issues for future research, and discuss future directions on the processing and properties of nanostructured materials via SPD techniques, with a special emphasis on high-pressure effects. During the 3-day workshop, about 60 scientists from 12 countries presented 60 papers. Over 20 keynote presentations were given by distinguished scientists in this field. Papers in this book cover areas of high pressure effect on the nanostructure and properties of SPD-processed materials, fundamentals of nanostructured materials, development of high-pressure SPD technologies for commercializations, recent advances of SPD technologies as well as applications and future markets of SPD-processed nanostructured materials
Deformation twinning in nanocrystalline fcc copper and aluminum3High pressure in large plastic deformation : effects and techniques13Toward comparison of alternative methods for producing bulk nanostructured metals by severe plastic deformation21Applications of severe plastic deformations for materials nanostructuring aimed at advanced properties29New applications of the SPD concept : [mu]SPD39Mechanisms of submicron grain formation in titanium and two-phase titanium alloy during large strain warm working47Nanostructured and polycrystalline Ti anomalies of low temperature plasticity55Modeling of grain subdivision during severe plastic deformation by VPSC method combined with disclination analysis61Ultimate grain refinement by ECAP : experiment and theory69Twist extrusion as a tool for grain refinement in Al-Mg-Sc-Zr alloysMicrostructural characteristics of ultrafine-grained nickel83Refinement and densification of aluminum nickelides by severe plastic deformation89Low-temperature sheet rolling of TiAl based alloys95Application of diamond anvil cell techniques for studying nanostructure formation in bulk materials directly during severe plastic deformation101Anomalous nitrogen solubility in gradient nanostructured layer formed in the surface of bulk iron by severe plastic deformation under friction107Evolution of microstructure and mechanical properties of Ti-5Mo-5Al-5V alloy processed by high pressure deformation113Martensitic transformations in nanocrystalline Fe-Cr-Ni and Fe-Mn alloys121Precipitation behavior in age-hardenable alloys after severe plastic deformation129Understanding the textural and microstructural development in two-pass ECAP by route A of a commercial aluminium alloy137Microstructural refinement of bulk Nb and Ta by severe plastic deformation for composite superconductor applications145Modeling hardening effects and grain size evolution in metals induced by severe plastic deformation151Nanocrystalline structure formation under severe plastic deformation and its influence on mechanical properties161Structure and properties of Ti alloys processed by ECAP169Microstructure and mechanical properties of 6082 aluminum alloy processed by hydrostatic extrusion175Grain refinement and viscous fracture of metals during severe plastic deformation : mathematical simulation181Structure and properties of ultrafine grained nickel after severe plastic deformation187Deformation mechanisms inducing microstructure refinement in commercially pure aluminium processed via ECAP : comparison to cold-rolling and hot-torsion193The deformation characteristics of pure aluminum processed by equal-channel angular pressing201Microstructural aspects of cyclic deformation and fatigue of ultrafine-grained metals209Modelling mechanical properties of SPD materials during and after severe plastic deformation217Unique deformation behaviors of the ultrafine grained aluminum alloys fabricated by accumulative roll bonding227Microstructure and mechanical properties of long, ultrafine-grained Ti rods235Improving the mechanical properties of Ti-6Al-4V alloy by equal channel angular pressing241Structural features, strength, and mechanisms of deformation of nanocrystalline materials247Response of mechanical properties across the sample to ECAP253Deformation and failure of Ti-6Al-4V nanostructured alloy at 300-4.2 K259Improvement of mechanical properties in a nanostructured Fe-Ni-Mn steel prepared by heavy plastic deformation265Surface nanostructure and tribological properties of metallic materials271Elevated temperature deformation characteristics of nanocrystalline materials277Features of creep in bulk nanostructured composite Cu-0.5wt.%Al[subscript 2]O[subscript 3]285Effect of second phase particles on annealing ultrafine grained aluminium alloys deformed by ECAE293The influence of the SPD regimes on superplastic behavior of an aluminum alloy299
