Journal
MATERIALS RESEARCH EXPRESS
Volume 4, Issue 8, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/2053-1591/aa7f8f
Keywords
Mg-Zn-Y alloy; microstructure; icosahedral quasicrystal; LPSO; mechanical properties
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Funding
- National Natural Science Foundation of China [51571102]
- Natural Science Foundation of Shandong Province, China [ZR2013EML004]
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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 alpha-Mg matrix. Wherein, the quasicrystal phases exist in the (I-phase + alpha-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.
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