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

Jiehua Li; Fredrik S Hage; Xiangli Zhong; Yujuan Wu; Liming Peng; Sarah J. Haigh; Quentin M Ramasse; Peter Schumacher

doi:10.1016/j.matchar.2017.05.008

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

Jiehua Li^*, Fredrik S Hage, Xiangli Zhong, Yujuan Wu, Liming Peng, Sarah J. Haigh, Quentin M Ramasse, Peter Schumacher

^*Corresponding author for this work

Materials - Administration

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Abstract

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 language	English
Pages (from-to)	247-251
Number of pages	5
Journal	Materials Characterization
Volume	129
Early online date	10 May 2017
DOIs	https://doi.org/10.1016/j.matchar.2017.05.008
Publication status	Published - 1 Jul 2017

Keywords

Electron energy loss spectroscopy (EELS)
High angle annular dark field (HAADF)
Long-period stacking ordered structure
Magnesium alloys
Segregation

Research Beacons, Institutes and Platforms

National Graphene Institute

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10.1016/j.matchar.2017.05.008

jiehua_elemental2017Accepted author manuscript, 732 KB

Cite this

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

abstract = "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.",

keywords = "Electron energy loss spectroscopy (EELS), High angle annular dark field (HAADF), Long-period stacking ordered structure, Magnesium alloys, Segregation",

author = "Jiehua Li and Hage, {Fredrik S} and Xiangli Zhong and Yujuan Wu and Liming Peng and Haigh, {Sarah J.} and Ramasse, {Quentin M} and Peter Schumacher",

year = "2017",

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day = "1",

doi = "10.1016/j.matchar.2017.05.008",

language = "English",

volume = "129",

pages = "247--251",

journal = "Materials Characterization",

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T1 - Elemental distribution within the long-period stacking ordered structure in a Mg-Gd-Zn-Mn alloy

AU - Li, Jiehua

AU - Hage, Fredrik S

AU - Zhong, Xiangli

AU - Wu, Yujuan

AU - Peng, Liming

AU - Haigh, Sarah J.

AU - Ramasse, Quentin M

AU - Schumacher, Peter

PY - 2017/7/1

Y1 - 2017/7/1

N2 - 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.

AB - 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.

KW - Electron energy loss spectroscopy (EELS)

KW - High angle annular dark field (HAADF)

KW - Long-period stacking ordered structure

KW - Magnesium alloys

KW - Segregation

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U2 - 10.1016/j.matchar.2017.05.008

DO - 10.1016/j.matchar.2017.05.008

M3 - Article

AN - SCOPUS:85019135081

SN - 1044-5803

VL - 129

SP - 247

EP - 251

JO - Materials Characterization

JF - Materials Characterization

ER -

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

Abstract

Keywords

Research Beacons, Institutes and Platforms

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Next Generation Multi-Dimensional X-ray Imaging

XRADIA : High Resolution of 4D Imaging of Degradation and Self-repair Processes

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

Abstract

Keywords

Research Beacons, Institutes and Platforms

Access to Document

Other files and links

Fingerprint

Projects

Next Generation Multi-Dimensional X-ray Imaging

XRADIA : High Resolution of 4D Imaging of Degradation and Self-repair Processes

Cite this