By Michael J. Zehetbauer, Yuntian Theodore Zhu
The processing and mechanical behaviour of bulk nanostructured fabrics are some of the most attention-grabbing new fields of analysis on complex fabrics platforms. Many nanocrystalline fabrics own very excessive energy with nonetheless strong ductility, and show excessive values of fatigue resistance and fracture durability. there was carrying on with curiosity in those nanomaterials to be used in structural and biomedical purposes, and this has ended in a great number of examine courses around the globe. This booklet specializes in the processing innovations, microstructures, mechanical and actual houses, and purposes of bulk nanostructured fabrics, in addition to comparable primary concerns. basically due to the fact lately can such bulk nanostructured fabrics be produced in huge bulk dimensions, which opens the door to their advertisement applications.Content:
Chapter 1 Nanostructured fabrics: an outline (pages 1–20): Carl C. Koch
Chapter 2 Bulk Nanostructured fabrics through SPD Processing: concepts, Microstructures and homes (pages 21–48): Ruslan Z. Valiev and Airat A. Nazarov
Chapter three Nonmetallic Bulk Nanomaterials (pages 49–85): Dieter Vollath and Dorothée V. Szabó
Chapter four Deformation Mechanisms of Nanostructured fabrics (pages 87–108): Yuntian T. Zhu, Bing Q. Han and Enrique J. Lavernia
Chapter five Modeling of power and pressure Hardening of Bulk Nanostructured fabrics (pages 109–136): ao. Univ. Prof. Dr. Michael J. Zehetbauer and Yuri Estrin
Chapter 6 Finite‐Element technique Simulation of critical Plastic‐Deformation tools (pages 137–163): Hyoung Seop Kim
Chapter 7 MD Simulation of Deformation Mechanisms in Nanocrystalline fabrics (pages 165–199): Dieter Wolf and Vesselin Yamakov
Chapter eight ECAP: Processing basics and up to date Progresses (pages 201–215): Zenji Horita
Chapter nine High‐Pressure Torsion – positive factors and purposes (pages 217–233): Reinhard Pippan
Chapter 10 Fabrication of Bulk Nanostructured fabrics by means of Accumulative Roll Bonding (ARB) (pages 235–253): Nobuhiro Tsuji
Chapter eleven Bulk Nanomaterials from Friction Stir Processing: positive aspects and homes (pages 255–272): Rajiv S. Mishra
Chapter 12 Bulk Nanostructured Metals from Ball Milling and Consolidation (pages 273–291): Bing Q. Han, Jichun Ye, A. Piers Newbery, Yuntian T. Zhu, Julie M. Schoenung and Enrique J. Lavernia
Chapter thirteen Bulk Nanostructured fabrics from Amorphous Solids (pages 293–310): Gerhard Wilde
Chapter 14 non-stop SPD ideas, and Post‐SPD Processing (pages 311–324): Igor V. Alexandrov
Chapter 15 Transmission Electron Microscopy of Bulk Nanostructured Metals (pages 325–342): Xiaozhou Liao and Xiaoxu Huang
Chapter sixteen Bulk Nanostructured Intermetallic Alloys Studied by means of Transmission Electron Microscopy (pages 343–360): Thomas Waitz, Christian Rentenberger and H. Peter Karnthaler
Chapter 17 Microstructure of Bulk Nanomaterials made up our minds through X‐Ray Line‐Profile research (pages 361–386): Tamás Ungár, Erhard Schafler and Jenö Gubicza
Chapter 18 Texture Evolution in Equal‐Channel Angular Extrusion (pages 387–421): Irene J. Beyerlein and László S. Tóth
Chapter 19 Mechanical homes of Bulk Nanostructured Metals (pages 423–453): Yinmin M. Wang and Evan Ma
Chapter 20 Superplasticity of Bulk Nanostructured fabrics (pages 455–468): Terence G. Langdon
Chapter 21 Fracture and Crack development in Bulk Nanostructured fabrics (pages 469–479): Ruth Schwaiger, Benedikt Moser and Timothy Hanlon
Chapter 22 Fatigue homes of Bulk Nanostructured fabrics (pages 481–500): Heinz‐Werner Höppel, Hael Mughrabi and Alexey Vinogradov
Chapter 23 Diffusion in Nanocrystalline metal fabrics (pages 501–517): Wolfgang Sprengel and Roland Würschum
Chapter 24 Creep habit of Bulk Nanostructured fabrics – Time‐Dependent Deformation and Deformation Kinetics (pages 519–537): Wolfgang Blum, Philip Eisenlohr and Vaclav Sklenička
Chapter 25 Structural houses of Bulk Nanostructured Ceramics (pages 539–567): Alla V. Sergueeva, Dongtao T. Jiang, Katherine E. Thomson, Dustin M. Hulbert and Amiya okay. Mukherjee
Chapter 26 Bulk Nanostructured Multiphase Ferrous and Nonferrous Alloys (pages 569–603): Sergey Dobatkin and Xavier Sauvage
Chapter 27 Bulk Nanocrystalline and Amorphous Magnetic fabrics (pages 605–633): Roland Grössinger and Reiko Sato Turtelli
Chapter 28 area of interest functions of Bulk Nanostructured fabrics Processed by means of critical Plastic Deformation (pages 635–648): Yuri Estrin and ao. Univ. Prof. Dr. Michael J. Zehetbauer
Chapter 29 Bulk fabrics with a Nanostructured floor and Coarse‐Grained inside (pages 649–671): Ke Lu and Leon Shaw
Chapter 30 Commercializing Bulk Nanostructured Metals and Alloys (pages 673–686): Terry C. Lowe
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Extra info for Bulk Nanostructured Materials
Subsequently, the research group by Valiev et al. in Ufa began the systematic development of HPT and a bit later of ECAP (see Chapter 9) as processing tools for the production of metals having significant grain refinement and enhanced mechanical properties, and the results of this research generated a major worldwide interest in exploring the capabilities provided by SPD . 3 [10, 11]. 3 Schematic illustration of HPT processing . 4 Parameters used in estimating the total strain in HPT .
5 GPa for 5 turns: the significance of the colors is shown by the small inset . For color details, please see color plate section. 8 suggests that the development of a homogeneous structure may occur more rapidly at the lower pressure. 5 GPa is consistent with these trends. All of these data confirm that two factors influence the development of homogeneity in HPT: the values of the imposed pressure and the values of the imposed strain, where the latter is represented by the numbers of turns.
These segregations form “clouds” and clusters 3–5 nm in size and influence the formation and motion of dislocations, which provides additional strengthening of the alloys, in particular those based on aluminum, by more than 40% [46, 53]. 11 UFG structure of the alloy Al-6061 after ECAP with parallel channels (4 passes). The formation of nanosized precipitations is clearly visible inside the grain after processing at selected areas (a) and (b) with larger magnification . Nanosized particles: second-phase precipitations.