Nanostructured Materials by High-Pressure Severe Plastic Deformation

ISBN-13: 9781402039218 / Angielski / Twarda / 2005 / 312 str.

Yuntian T. Zhu; Viktor Varyukhin

Opis

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

Spis treści

Preface. Acknowledgment. I. Fundamentals of Nanostructured Materials and SPD Processing Deformation Twinning in Nanocrystalline fcc Copper and Aluminum; Y.T. Zhu.- High Pressure in Large Plastic Deformation: Effects and Techniques; V.N. Varyukhin, B.M. Efros.- Toward Comparison of Alternative Methods for Producing Bulk Nanostructured Metals by Severe Plastic Deformation; T.C. Lowe.- Applications of Severe Plastic Deformations for Materials Nanostructuring Aimed at Advanced Properties; R.Z. Valiev.- New Applications of the SPD Concept: uSPD; Y. Estrin et al.- Mechanisms of Submicron Grain Formation in Titanium and Two-Phase Titanium Alloy during Large Strain Warm Working; G.A. Salishchev et al.- Nanostructured and Polycrystalline Ti Anomalies of Low Temperature Plasticity; V.Bengus et al.- Modeling of Grain Subdivision during Severe Plastic Deformation by VPSC Method Combined with Disclination Analysis; A.A. Nazarov et al.-— II. Advances in SPD Technologies.Ultimate Grain Refinement by ECAP: Experiment and Theory; V.1. Kopylov, V.N. Chuvil’deev.- Twist Extrusion as a Tool for Grain Refinement in Al-Mg-Sc-Zr Alloys ; D. Orlov et al.- Microstructural Characteristics of Ultrafme-Grained Nickel ; A. Zhilyaev.-Refinement and Densification of Aluminum Nickelides by Severe Plastic Deformation; L.J. Kecskes et al.- Low-Temperature Sheet Rolling of TiAl Based Alloys; M.R. Shagiev, GA. Salishchev.- Application of Diamond Anvil Cell Techniques for Studying -Nanostructure Formation in Bulk Materials Directly during Severe Plastic Deformation; A.N. Babushkin et al.-Anomalous Nitrogen Solubility in Gradient Nanostructured Layer Formed in the Surface of Bulk Iron by Severe Plastic Deformation under Friction; Ad. Yurkova et al.- Evolution of Microstructure and Mechanical Properties of Ti-5Mo-5A1-5V Alloy Processed by High Pressure Deformation; T.A. Ryumshyna, TE. Konstantinova.- Martensitic Transformations in Nanocrystalline Fe-Cr-Ni and Fe-Mn Alloys; B.M. Efros et al.-III. Processing, Microstructures, and Mechanical Properties. Precipitation Behavior in Age-Hardenable Alloys after Severe Plastic Deformation; Z. Horita et al.-Understanding the Textural and Microstructural Development in Two-Pass ECAP by route A of a Commercial Aluminium Alloy; J.C. Werenskiold, HJ. Roven.- Microstructural Refinement of Bulk Nb and Ta by Severe Plastic Deformation for Composite Superconductor Applications; S.N. Mathaudhu.- Modeling Hardening Effects and Grain Size Evolution in Metals Induced by Severe Plastic Deformation; z. Mróz, A. Baltov.- Nanocrystalline Structure Formation under Severe Plastic Deformation and its Influence on Mechanical Properties; Yu.M. Podrezov.- Structure and Properties of Ti Alloys Processed by ECAP; v.v. Stolyarov et al.- Microstructure and Mechanical Properties of 6O82 Aluminium Alloy Processed by Hydrostatic Extrusion; P. Widlicki et al.- Grain Refinement and Viscous Fracture of Metals during Severe Plastic Deformation: Mathematical Simulation ; Yan Beygelzimer.- Structure and Properties of Ultrafme Grained Nickel after Severe Plastic Deformation; B.M. Efros,.- Deformation Mechanisms Inducing Microstructure Refinement in Commercially Pure Aluminium Processed via ECAP: Comparison to Cold-Rolling and Hot-Torsion ; M. Cabibbo, E. Evangelista.-IV. Mechanical Properties. The Deformation Characteristics of Pure Aluminum Processed by Equal-Channel Angular Pressing ; C. Xu et al.- Microstructural Aspects of Cyclic Deformation and Fatigue of Ultrafine-Grained Metals; H. Mughrabi.-. Modelling Mechanical Properties of SPD Materials During and After Severe Plastic Deformation ; M.J. Zehetbauer, et al.- Unique Deformation Behaviors of the Ultrafine Grained Aluminum Alloys Fabricated by Accumulative Roll Bonding; N.Tsuji.-Microstructure and Mechanical Properties of Long, Ultrafine Grained Ti Rods; I.P. Semenova. et al.-Improving the Mechanical Properties of Ti-6A1-4V Alloy by Equal Channel Angular Pressing ; L.R. Saitova et

O autorze

Yuntian T. Zhu is Professor in the Materials Science and Technology Division at the Los Alamos National Laboratory. His work concentrates on processing and characterization of bulk nanostructured materials and he is also active in research related to carbon nanotubes. Yuntian Zhu was co-organizer of four symposia on ultrafine grained materials.