Garcés, Gerardo and Requena, Guillermo and Tolnai, Domonkos and Pérez, Pablo and Medina, Judit and Stark, Andreas and Schell, Norbert and Adeva, Paloma (2016) Formation of an 18R long-period stacking ordered structure in rapidly solidified Mg88Y8Zn4 alloy. Materials Characterization, 118, pp. 514-518. Elsevier. DOI: 10.1016/j.matchar.2016.06.032 ISSN 1044-5803
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Abstract
The formation of the long-period stacking ordered structure (LPSO) in a Mg88Y8Zn4(at%) ribbon produced by melt spinning was studied using high energy X-ray synchrotron radiation diffraction during in-situ isochronal heating and transmission electron microscopy. The microstructure of the rapidly solidified ribbons is characterised by fine magnesiumgrains with yttriumand zinc in solid solution and primary 18R LPSO-phase segregated at grain boundaries. Using differential scanning calorimetry, a strong exothermal peak was observed around 300 °Cwhich was associated with the development of the 18R-type LPSO-phase in themagnesiumgrains. The apparent activation energy calculated using the Kissinger model was 125 KJmol−1 and it is related to simultaneous diffusion of Y and Zn through magnesium basal plane.
Item URL in elib: | https://elib.dlr.de/108450/ | |||||||||||||||||||||||||||
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Document Type: | Article | |||||||||||||||||||||||||||
Title: | Formation of an 18R long-period stacking ordered structure in rapidly solidified Mg88Y8Zn4 alloy | |||||||||||||||||||||||||||
Authors: |
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Date: | 2016 | |||||||||||||||||||||||||||
Journal or Publication Title: | Materials Characterization | |||||||||||||||||||||||||||
Refereed publication: | Yes | |||||||||||||||||||||||||||
Open Access: | No | |||||||||||||||||||||||||||
Gold Open Access: | No | |||||||||||||||||||||||||||
In SCOPUS: | Yes | |||||||||||||||||||||||||||
In ISI Web of Science: | Yes | |||||||||||||||||||||||||||
Volume: | 118 | |||||||||||||||||||||||||||
DOI : | 10.1016/j.matchar.2016.06.032 | |||||||||||||||||||||||||||
Page Range: | pp. 514-518 | |||||||||||||||||||||||||||
Publisher: | Elsevier | |||||||||||||||||||||||||||
ISSN: | 1044-5803 | |||||||||||||||||||||||||||
Status: | Published | |||||||||||||||||||||||||||
Keywords: | Magnesium alloys Long-period stacking ordered structure, In-situ synchrotron radiation diffraction Transmission electron microscopy | |||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||||||||||||||
HGF - Program: | Aeronautics | |||||||||||||||||||||||||||
HGF - Program Themes: | fixed-wing aircraft | |||||||||||||||||||||||||||
DLR - Research area: | Aeronautics | |||||||||||||||||||||||||||
DLR - Program: | L AR - Aircraft Research | |||||||||||||||||||||||||||
DLR - Research theme (Project): | L - Structures and Materials | |||||||||||||||||||||||||||
Location: | Köln-Porz | |||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Materials Research > Metallic Structures and Hybrid Material Systems | |||||||||||||||||||||||||||
Deposited By: | Requena, Guillermo | |||||||||||||||||||||||||||
Deposited On: | 29 Nov 2016 14:51 | |||||||||||||||||||||||||||
Last Modified: | 06 Sep 2019 15:18 |
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