Phase Compositions of a Mg-Dy-Zn Alloy Containing LPSO Structures
| Autor: | Qiu Ming Peng, Da Qing Fang, Xue Cheng Cai |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Scanning electron microscope Mechanical Engineering Alloy engineering.material Condensed Matter Physics law.invention Crystallography Optical microscope Mechanics of Materials Transmission electron microscopy law Differential thermal analysis Phase (matter) engineering General Materials Science Eutectic system Solid solution |
| Zdroj: | Materials Science Forum. 815:470-473 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.815.470 |
| Popis: | The phase compositions of a Mg-2Dy-0.5Zn (at.%) alloy under different solid solution temperature was investigated by differential thermal analysis (DSC), X-ray diffraction (XRD), optical microscope (OM), scanning electron microscope (SEM) and transmission electron microscope (TEM). The results indicated that the as-cast sample was mainly composed of an 18R long period stacking ordered (LPSO) phase and Mg matrix. The disappearance of 18R-LPSO phase, together with the presence of 14H-LPSO phase, occurred when solid solution treatment (SST) was at 535 °C. When the temperature was higher than 535 °C, the 18R-LPSO phase was detected again companied with a new Mg8ZnDy eutectic phase. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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