Read e-book online Bulk Nanostructured Materials PDF

By Michael J. Zehetbauer, Yuntian Theodore Zhu

The processing and mechanical behaviour of bulk nanostructured fabrics are the most attention-grabbing new fields of analysis on complicated fabrics structures. Many nanocrystalline fabrics own very excessive power with nonetheless stable ductility, and show excessive values of fatigue resistance and fracture sturdiness. there was carrying on with curiosity in those nanomaterials to be used in structural and biomedical purposes, and this has resulted in plenty of examine courses around the globe. This ebook specializes in the processing recommendations, microstructures, mechanical and actual homes, and functions of bulk nanostructured fabrics, in addition to comparable primary matters. in simple terms considering that 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 by way of SPD Processing: options, 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 process Simulation of serious Plastic‐Deformation equipment (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 functions (pages 217–233): Reinhard Pippan
Chapter 10 Fabrication of Bulk Nanostructured fabrics by way of Accumulative Roll Bonding (ARB) (pages 235–253): Nobuhiro Tsuji
Chapter eleven Bulk Nanomaterials from Friction Stir Processing: good points and houses (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 innovations, 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 way of Transmission Electron Microscopy (pages 343–360): Thomas Waitz, Christian Rentenberger and H. Peter Karnthaler
Chapter 17 Microstructure of Bulk Nanomaterials decided 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 houses of Bulk Nanostructured fabrics (pages 481–500): Heinz‐Werner Höppel, Hael Mughrabi and Alexey Vinogradov
Chapter 23 Diffusion in Nanocrystalline steel 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 purposes of Bulk Nanostructured fabrics Processed via 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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For example, the ECAP route BC, in which the billet is rotated by 90° between each pass, is considerably more effective for grain refinement by comparison with route C in which the billet position does not change [20]. At the microlevel, the vorticity is associated with grain rotations and displacements [44]. Grain refinement is also related to the atomic structure of the material processed. The ordering of alloys or low stacking-fault energy (SFE), all other conditions being equal, contributes to the enhancement of an accumulated dislocation density and considerably reduces the grain size produced [40].

10 Grain boundary segregations in the HPT-processed 6061 Al alloy (of system Al– Mg–Si): (a) TEM image of the 6061 Al alloy, (b) grain size distribution, and (c) Mg, Cu, and Si distribution in a 3D reconstructed volume analyzed in the 6061 alloy by HPT (6 × 6 × 40 nm3) [46]. a TEM image of atomic resolution of UFG Cu after ECAP and cold rolling at liquid nitrogen temperature with clearly observed twins of 10–20 nm in size [50]. Such nanostructured defects also have a considerable effect on material strength [50, 51], for example, increasing the yield stress in UFG Cu from 380 to 510 MPa [50].

Bulk Nanostructured Materials. Weinheim: Wiley-VCH Verlag GmbH & Co. KGaA; 2009. 18. Estrin Y, Maier HJ, editors. Nanomaterials by Severe Plastic Deformation IV, Materials Science Forum Volumes 584–586. Switzerland: Trans Tech Publications; 2008. 19. Valiev RZ, Alexandrov IV, Zhu YT, Lowe TC. J Mater Res 2002;17:5. 20. Valiev RZ, Langdon TG. Prog Mater Sci 2006;51:881. 21. Zhilyaev AP, Nurislamova GV, Kim BK, Baró MD, Szpunar JA, Langdon TG. Acta Mater 2003;51:753. 22. Hebesberger T, Stüwe HP, Vorhauer A, Wetscher F, Pippan R.

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