Effect of Loading Mode on the Evolution of the Dislocation Structure in Magnesium

• Authors: K. Máthis , J. Gubicza , G. Csiszár , J. Čapek , B. Clausen , V. Šíma , P. Lukáš
• Languages of publication: EN

Abstracts

EN

The evolution of the dislocation structure in randomly textured cast magnesium as a function of loading mode is studied using whole neutron diffraction pattern line profile analysis and elasto-plastic self-consistent modeling. Both the experimental results and the theoretical data indicate the onset of basal slip at low stresses and the key role of prismatic slip in the macroscopic yield. Dependence of the second-order pyramidal slip on the loading mode is revealed.

Keywords

EN

81.05.Bx; 83.85.Hf; 83.60.La; 81.40.Lm

Discipline

• 83.85.Hf: X-ray and neutron scattering
• 81.05.Bx: Metals, semimetals, and alloys
• 83.60.La: Viscoplasticity; yield stress
• 81.40.Lm: Deformation, plasticity, and creep(see also 83.50.-v Deformation and flow in rheology)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 4
• Pages: 700-703

Dates

published

2015-10

Contributors

author

K. Máthis

• Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague, Czech Republic

author

J. Gubicza

• Department of Materials Physics, Faculty of Science, Eötvös Loránd University, Pázmány P. sétány 1/A, H-1117 Budapest, Hungary

author

G. Csiszár

• Department of Materials Physics, Faculty of Science, Eötvös Loránd University, Pázmány P. sétány 1/A, H-1117 Budapest, Hungary

author

J. Čapek

• Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague, Czech Republic

author

B. Clausen

• Los Alamos National Laboratory, Lujan Neutron Scattering Center, Los Alamos, NM 87545, USA

author

V. Šíma

• Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Prague, Czech Republic

author

P. Lukáš

• Nuclear Physics Institute of the Academy of Sciences of the Czech Republic, 250 68 Řež, Czech Republic

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Identifiers

DOI

10.12693/APhysPolA.128.700