Elemental distribution within the long-period stacking ordered structure in a Mg-Gd-Zn-Mn alloy

Jiehua LI, Fredrik S. Hage, Xiangli Zhong, Yujun Wu, Liming Peng, Sarah Haigh, Quentin M. Ramasse, Peter Schumacher

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High angle annular dark field scanning transmission electron microscope imaging and electron energy loss spectroscopy was used to elucidate the elemental distribution (Gd, Zn, Mn) within the long-period stacking ordered (LPSO) structure in a Mg-15Gd-0.8Zn-0.8Mn (wt%) alloy. While Gd and Zn enrichment was observed within the LPSO structure, no significant enrichment in Mn was observed. After averaging over a large region, a very weak Mn signal was resolved but no significant variations in Mn signal were observed over this region, suggesting that Mn is indeed present. These results provide useful information to support the future development of high performance Mg alloys.
Original languageEnglish
Pages (from-to)247-251
Number of pages5
JournalMaterials characterization
Issue numberJuly
Publication statusE-pub ahead of print - 10 May 2017

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