Microstructure and vacancy-type defects in high-pressure torsion deformed Al-Cu-Mg-Mn alloy
- Author(s)
- Wolfgang Lechner, Werner Puff, Bernhard Mingler, Michael Zehetbauer, Roland Würschum
- Abstract
High-pressure torsion (HPT) was applied to the structural refinement of an age-hardenable Al–Cu–Mg–Mn alloy (AW 2017). HPT deformation gives rise to a fragmentation and dissolution of aging-induced precipitates and to a grain refinement down to sizes of 100 nm. Positron annihilation spectroscopy, in particular the chemical sensitive method of two-dimensional Doppler broadening spectroscopy, was used for a detailed analysis of the nature of vacancy-type defects induced by deformation and vacancy–solute interaction. The correlation between microstructure and atomic defects with thermal annealing is discussed.
- Organisation(s)
- Physics of Nanostructured Materials
- External organisation(s)
- Technische Universität Graz, Austrian Research Centers GmbH (ARC Seibersdorf)
- Journal
- Scripta Materialia
- Volume
- 61
- Pages
- 383-386
- No. of pages
- 4
- ISSN
- 1359-6462
- DOI
- https://doi.org/10.1016/j.scriptamat.2009.04.027
- Publication date
- 2009
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103023 Polymer physics, 210006 Nanotechnology, 103018 Materials physics
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/microstructure-and-vacancytype-defects-in-highpressure-torsion-deformed-alcumgmn-alloy(af4ec1cb-1420-42b6-b454-db4af25a708a).html