AFM observation of Fe-Al single crystals under in situ deformation

0386873 - FZÚ 2013 RIV PL eng J - Journal Article
Veselý, J. - Cieslar, M. - Kopeček, Jaromír
AFM observation of Fe-Al single crystals under in situ deformation.
Acta Physica Polonica A. Roč. 122, č. 3 (2012), s. 618-621. ISSN 0587-4246. E-ISSN 1898-794X.
[International Symposium on Physics of Materials, ISPMA /12./. Praha, 04.09.2011-08.09.2011]
R&D Projects: GA ČR(CZ) GAP107/10/0438
Institutional research plan: CEZ:AV0Z10100520
Keywords : atomic force microscopy * Fe₃Al * TEM
Subject RIV: JG - Metallurgy
Impact factor: 0.531, year: 2012

Fe Al single crystals of three di erent compositions (20, 28 and 40 at.%Al) in single slip orientation were studied. Evolution of their surfaces during deformation at room temperature was observed in situ in atomic force microscope. Atomic force microscopy allows us to investigate slip lines on much ner scale than traditional optical observations. Wavy slip bands in Fe Al20, cross-slip in Fe Al28 and weak slip line texture in Fe Al40 are described. Post mortem observations of surfaces of Fe Al28 deformed at elevated temperatures (in the range of yield stress anomaly) are presented as well.
Permanent Link: http://hdl.handle.net/11104/0216103