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

0517486 - ÚJF 2020 RIV CH eng J - Journal Article
Mathis, Kristián - Drozdenko, D. - Németh, Gergely - Harjo, S. - Gong, W. - Aizawa, K. - Yamasaki, M. - Kawamura, Y.
In-situ Investigation of the Microstructure Evolution in Long-Period-Stacking-Ordered (LPSO) Magnesium Alloys as a Function of the Temperature.
Frontiers in Materials. Roč. 6, č. 11 (2019), č. článku 270. ISSN 2296-8016. E-ISSN 2296-8016
R&D Projects: GA MŠMT EF16_013/0001794
Institutional support: RVO:61389005
Keywords : twinning * kinking * neutron diffraction * acoustic emission * LPSO phase
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.705, year: 2019
Method of publishing: Open access
https://doi.org/10.3389/fmats.2019.00270

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 degrees 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.
Permanent Link: http://hdl.handle.net/11104/0302809