PSI - Issue 23

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Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2019) 000 – 000 Structural Integrity Procedia 00 (2019) 000 – 000

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Procedia Structural Integrity 23 (2019) 51–56

9th International Conference on Materials Structure and Micromechanics of Fracture Influence of the solute concentration on twinning-detwinning process in Mg-Al alloys 9th International Conference on Materials Structure and Micromechanics of Fracture Influence of the solute concentration on twinning-detwinning process in Mg-Al alloys

Kristián Máthis a, *, Daria Drozdenko a,b , Jan Čapek c a Department of Physics of Materials, Charles University, Praha 121 16, Czech Republic b Magnesium Research Center,Kumamoto University, Kumamoto 860-8555, Japan c Paul Scherrer Institute, Villigen 5232, Switzerland Kristián Máthis a, *, Daria Drozdenko a,b , Jan Čapek c a Departm nt of Physics of Ma ials, Charles University, Praha 121 16, Czech Re ublic b Magnesium Rese rch C nt ,Kumamoto University, Kumamoto 860-8555, Japan c Paul Scherrer Institute, Villigen 5232, Switzerland

Abstract Abstract

© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the ICMSMF organizers © 201 9 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. Twinni g-detwin ing behavior as a function of alloyi g cont nt in Mg-Al binar alloys was inves igated du ing cyclic loading. Comb nati n of ne tron diffraction, acous ic mission nd electron microscopy was used for detailed characterization f the evolution of twin nucleation and growth with respect o applied str ss. The r sul s approv d that the increasing al ying content hinders the twin growth, which has a direct impact on the magnitude of the anelasticity observed during loading-unloading cycle. © 201 9 The Authors. Published by Elsevier B.V. This is an ope acces article under CC BY-NC-ND lic nse (http://creativecommon org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. Twinning-detwinning behavior as a function of alloying content in Mg-Al binary alloys was investigated during cyclic loading. Combination of neutron diffraction, acoustic emission and electron microscopy was used for detailed characterization of the evolution of twin nucleation and growth with respect to applied stress. The results approved that the increasing alloying content hinders the twin growth, which has a direct impact on the magnitude of the anelasticity observed during loading-unloading cycle. 1. Introduction The low symmetry of the hexagonal lattice of magnesium causes a limited number of slip systems, which can operate during ambient temperature deformation (Akhtar and Teghtsoonian (1969)). Therefore, the {101̅ 2} < 101̅ 1 > 1. Introduction The low sym etry of th hexagonal lattice of magnesium causes a limited number of slip systems, which can operate during ambient temperature deformation (Akhtar and Teghtsoonian (1969)). Therefore, the {101̅ 2} < 101̅ 1 > Keywords: Twinning; Neutron diffaction; Acoustic Emission Keywords: Twinning; Neutron diffaction; Acoustic Emission

* Corresponding author. Tel.: +420-221-911-458; fax: +420-221-911-490. E-mail address: mathis@met.mff.cuni.cz * Correspon ing author. Tel.: +420-221-911-458; fax: +420-221-911-490. E-mail address: mathis@met.mff.cuni.cz

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the IC MSMF organizers. 2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an ope acces article under CC BY-NC-ND lic nse (http://creativecommon org/licenses/by-nc-nd/4.0/)

Peer-review under responsibility of the scientific committee of the IC MSMF organizers.

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of the ICMSMF organizers 10.1016/j.prostr.2020.01.062