Microstructure and mechanical properties of Mg-Zn-Y alloy containing LPSO phase and I-phase

Microstructure and mechanical properties of Mg-Zn-Y alloy including LPSO phase and I-phase was investigated. Transmission electron microscopy, x-ray diffraction analysis and differential scanning calorimeter analysis reveal that the LPSO (long period stacking ordered structure) phase and I-phase can...

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Bibliographic Details
Published in:Materials research express 2017-08, Vol.4 (8), p.86502
Main Authors: Ye, Zhijian, Teng, Xinying, Lou, Gui, Zhou, Guorong, Leng, Jinfeng
Format: Article
Language:English
Subjects:
icosahedral quasicrystal
LPSO
mechanical properties
Mg-Zn-Y alloy
microstructure
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Summary:Microstructure and mechanical properties of Mg-Zn-Y alloy including LPSO phase and I-phase was investigated. Transmission electron microscopy, x-ray diffraction analysis and differential scanning calorimeter analysis reveal that the LPSO (long period stacking ordered structure) phase and I-phase can co-exist within the α-Mg matrix. Wherein, the quasicrystal phases exist in the (I-phase  +  α-Mg) eutectic structures. In the Mg-Zn-Y alloy, it is also found that 14 H type LPSO phases consist of LPSO phase and I-phase. With the addition of quasicrystal master alloy content, the microstructures are refined, and the mechanical properties are enhanced.
ISSN:2053-1591
2053-1591
DOI:10.1088/2053-1591/aa7f8f