Grain boundary distribution and texture in ultrafine-grained copper produced by severe plastic deformation
- RWTH Aachen (Germany). Inst. fuer Metallkunde und Metallphysik
- Russian Academy of Sciences, Ufa (Russian Federation). Inst. for Metals Superplasticity
Ultrafine-grained (UFG), i.e., nano- and submicrocrystalline materials have attracted great attention in recent years. This interest is caused by the unusual mechanical and physical properties of these materials. The extremely high volume fraction of grain boundaries (GBs) and triple junctions in UFG materials contribute to their unusual properties. However, other important parameters describing polycrystalline aggregate, namely, grain boundary misorientation and character distributions have not yet been studied in UFG materials, though they are conceived to influence mechanical and physical properties as well. Some studies indicated that mainly high-angle GBs were formed during severe plastic deformation; however, no direct proof of this suggestion has been obtained so far. The current paper deals with a statistical study of GB distributions and texture in UFG-materials. Pure copper was chosen for this study, since many results on microstructure and properties of the ultrafine-grained state produced in this material are available.
- OSTI ID:
- 382490
- Journal Information:
- Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 7 Vol. 35; ISSN XZ503X
- Country of Publication:
- United States
- Language:
- English
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