| Autor: |
Yu Zhang, Laure Bourgeois, Yu Chen, Zhuoran Zeng, Nick Birbilis, Philip N.H. Nakashima |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Journal of Magnesium and Alloys, Vol 11, Iss 4, Pp 1170-1179 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2213-9567 |
| DOI: |
10.1016/j.jma.2023.03.011 |
| Popis: |
Magnesium-lithium alloys with high lithium content have been attracting significant attention because of their low density, high formability and corrosion resistance. These properties are dependent on the distribution of lithium, which is difficult to map in the presence of magnesium. In this work, a ratio spectrum-imaging method with electron energy-loss spectroscopy (EELS) is demonstrated, which enables the mapping of lithium. In application to LAZ941 (Mg-9Li-4Al-1Zn in wt.%), this technique revealed that a key precipitate in the microstructure, previously thought by some to be Mg17Al12, is in fact rich in lithium. This result was corroborated with a structural investigation by high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM), showing this phase to be Al1-xZnxLi, with x< |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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