Micro-Tensile Behavior of Mg-Al-Zn Alloy Processed by Equal Channel Angular Pressing (ECAP)

0494794 - ÚJF 2019 RIV CH eng J - Článek v odborném periodiku
Mathis, Kristián - Kover, M. - Stráská, J. - Trojanová, Z. - Dzugan, J. - Halmesova, K.
Micro-Tensile Behavior of Mg-Al-Zn Alloy Processed by Equal Channel Angular Pressing (ECAP).
Materials. Roč. 11, č. 9 (2018), č. článku 1644. E-ISSN 1996-1944
Grant CEP: GA ČR GB14-36566G; GA MŠMT EF16_013/0001794
Institucionální podpora: RVO:61389005
Klíčová slova: magnesium alloy * equal channel angular pressing * processing route * miniaturized tensile tests * slip systems * twinning
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 2.972, rok: 2018

Commercially available AZ31 magnesium alloy was four times extruded in an equal rectangular channel using three different routes (A, B, and C). Micro tensile deformation tests were performed at room temperature with the aim to reveal any plastic anisotropy developed during the extrusion. Samples for micro tensile experiments were cut from extruded billets in different orientations with respect to the pressing direction. Information about the microstructure of samples was obtained using the electron back-scatter diffraction (EBSD) technique. Deformation characteristics (yield stress, ultimate tensile stress and uniform elongation) exhibited significant anisotropy as a consequence of different orientations between the stress direction and texture and thus different deformation mechanisms.
Trvalý link: http://hdl.handle.net/11104/0287854