Effects of isothermal homogenization on microstructure evolution of Mg-7Gd-5Y-1MM-0.5Zr alloy
| Autor: | Meng Li, Yong-jun Li, Jiawei Yuan, Guoliang Shi, Xing-gang Li, Ming-long Ma, Kui Zhang, Jing-Bao Liu |
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| Rok vydání: | 2015 |
| Předmět: |
Diffraction
Materials science Magnesium Metallurgy Alloy chemistry.chemical_element General Chemistry engineering.material Microstructure Homogenization (chemistry) Isothermal process law.invention Optical microscope chemistry Geochemistry and Petrology law engineering Composite material Magnesium alloy |
| Zdroj: | Journal of Rare Earths. 33:439-444 |
| ISSN: | 1002-0721 |
| Popis: | Optical microscopy (OM), scanning electronic microscopy (SEM) and X-ray diffraction (XRD) were performed to investigate the influence of homogenization on the microstructures of the Mg-7Gd-5Y-1MM (Ce-rich RE)-0.5Zr magnesium alloy. The results indicated that α-Mg, Mg 24 (GdY) 5 phase, Mg 5 (GdY) phase and Mg 12 MM phase coexisted together in as-cast alloy; the microstructures were largely characterized by α-Mg matrix and gray globular or elliptic ball Mg 12 MM phase, in addition to those with cubic block Mg 24 (GdY) 5 phase after homogenization; the reasonable homogenization regime was maintained at 530 °C for 32 h. |
| Databáze: | OpenAIRE |
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