In-situ Investigation of the Microstructure Evolution in Long-Period-Stacking-Ordered (LPSO) Magnesium Alloys as a Function of the Temperature

Kristián Máthis; Kristián Máthis; Daria Drozdenko; Daria Drozdenko; Gergely Németh; Gergely Németh; Stefanus Harjo; Wu Gong; Kazuya Aizawa; Michiaki Yamasaki; Yoshihito Kawamura

doi:10.3389/fmats.2019.00270

Frontiers in Materials (Nov 2019)

In-situ Investigation of the Microstructure Evolution in Long-Period-Stacking-Ordered (LPSO) Magnesium Alloys as a Function of the Temperature

Kristián Máthis,
Kristián Máthis,
Daria Drozdenko,
Daria Drozdenko,
Gergely Németh,
Gergely Németh,
Stefanus Harjo,
Wu Gong,
Kazuya Aizawa,
Michiaki Yamasaki,
Yoshihito Kawamura

Affiliations

Kristián Máthis: Nuclear Physics Institute, Czech Academy of Sciences, Prague, Czechia
Kristián Máthis: Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Czechia
Daria Drozdenko: Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Czechia
Daria Drozdenko: Department of Materials Science, Magnesium Research Center, Kumamoto University, Kumamoto, Japan
Gergely Németh: Nuclear Physics Institute, Czech Academy of Sciences, Prague, Czechia
Gergely Németh: Department of Physics of Materials, Faculty of Mathematics and Physics, Charles University, Prague, Czechia
Stefanus Harjo: J-PARC Center, Japan Atomic Energy Agency, Ibaraki, Japan
Wu Gong: Elements Strategy Initiative for Structural Materials, Kyoto University, Kyoto, Japan
Kazuya Aizawa: J-PARC Center, Japan Atomic Energy Agency, Ibaraki, Japan
Michiaki Yamasaki: Department of Materials Science, Magnesium Research Center, Kumamoto University, Kumamoto, Japan
Yoshihito Kawamura: Department of Materials Science, Magnesium Research Center, Kumamoto University, Kumamoto, Japan

DOI: https://doi.org/10.3389/fmats.2019.00270
Journal volume & issue: Vol. 6

Abstract

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Deformation behavior of two Mg–Zn–Y magnesium alloys, having a different fraction of the long-period-stacking-ordered (LPSO) phase, has been investigated at room temperature and 200°C by a combination of in-situ neutron diffraction (ND) and acoustic emission (AE) measurements. The results indicate that the twinning in the magnesium matrix and the kinking in the LPSO phase strongly depend on the composition of the material and the testing temperature. Further, active deformation mechanisms and particularly the load transfer from the magnesium matrix to the LPSO phase define the mechanical properties of the investigated alloys.

Published in Frontiers in Materials

ISSN: 2296-8016 (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Technology
Website: https://www.frontiersin.org/journals/materials

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