| Автор | Raabe, Dierk |
| Автор | Choi, Pyuck-Pa |
| Автор | Li, Yujiao |
| Автор | Kostka, Aleksander |
| Автор | Sauvage, Xavier |
| Автор | Lecouturier, Florence |
| Автор | Hono, Kazuhiro |
| Автор | Kirchheim, Reiner |
| Автор | Pippan, Reinhard |
| Автор | Embury, David |
| Дата выпуска | 2010 |
| dc.description | We review microstructures and properties of metal matrix composites produced by severe plastic deformation of multiphase alloys. Typical processings are wire drawing, ball milling, roll bonding, equal-channel angular extrusion, and high-pressure torsion of multiphase materials. Similar phenomena occur between solids in frictional contact such as in tribology, friction stir welding, and explosive joining. The resulting compounds are characterized by very high interface and dislocation density, chemical mixing, and atomic-scale structural transitions at heterointerfaces. Upon straining, the phases form into nanoscaled filaments. This leads to enormous strengthening combined with good ductility, as in damascene steels or pearlitic wires, which are among the strongest nanostructured bulk materials available today (tensile strength above 6 GPa). Similar materials are Cu-Nb and Cu-Ag composites, which also have good electrical conductivity that qualifies them for use in high-field magnets. Beyond the engineering opportunities, there are also exciting fundamental questions. They relate to the nature of the complex dislocation, amorphization, and mechanical alloying mechanisms upon straining and their relationship to the enormous strength. Studying these mechanisms is enabled by mature atomic-scale characterization and simulation methods. A better understanding of the extreme strength in these materials also provides insight into modern alloy design based on complex solid solution phenomena. |
| Формат | application.pdf |
| Издатель | Cambridge University Press |
| Копирайт | Copyright © Materials Research Society 2010 |
| Тема | Technical Feature |
| Название | Metallic composites processed via extreme deformation: Toward the limits of strength in bulk materials |
| Тип | research-article |
| DOI | 10.1557/mrs2010.703 |
| Electronic ISSN | 1938-1425 |
| Print ISSN | 0883-7694 |
| Журнал | MRS Bulletin |
| Том | 35 |
| Первая страница | 982 |
| Последняя страница | 991 |
| Аффилиация | Raabe Dierk; Max-Planck-Institut für Eisenforschung in Düsseldorf, Germany; d.raabe@mpie.de |
| Аффилиация | Choi Pyuck-Pa; Max-Planck-Institut für Eisenforschung in Düsseldorf, Germany; p.choi@mpie.de |
| Аффилиация | Li Yujiao; Max-Planck-Institut für Eisenforschung in Düsseldorf, Germany; y.li@mpie.de |
| Аффилиация | Kostka Aleksander; Max-Planck-Institut für Eisenforschung in Düsseldorf, Germany; a.kostka@mpie.de |
| Аффилиация | Sauvage Xavier; Institut de Physique at the University of Rouen |
| Аффилиация | Lecouturier Florence; Laboratoire National des Champs Magnétiques Intenses at CNRS, Toulouse, France, florence.lecouturier@lncmi.cnrs.fr |
| Аффилиация | Hono Kazuhiro; National Institute for Materials Science in Sengen |
| Аффилиация | Kirchheim Reiner; Materials Physics Institute at the University of Göttingen |
| Аффилиация | Pippan Reinhard; Erich Schmid Institute in Leoben, Austria; reinhard.pippan@oeaw.ac.at |
| Аффилиация | Embury David; McMaster University |
| Выпуск | 12 |
