Second phase effect on corrosion of nanostructured Mg-Zn-Ca dual-phase metallic glasses
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 1546-1555 |
| Journal / Publication | Journal of Magnesium and Alloys |
| Volume | 9 |
| Issue number | 5 |
| Online published | 26 May 2021 |
| Publication status | Published - 15 Sep 2021 |
Link(s)
| DOI | DOI |
|---|---|
| Attachment(s) | Documents
Publisher's Copyright Statement
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| Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-85106940728&origin=recordpage |
| Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(fdac4100-2170-4fc0-a428-bf7b04aeba4f).html |
Abstract
Dual-phase metallic glasses (DP-MGs), a special member of the MGs family, often reveal unusual strength and ductility, yet, their corrosion behaviors are not understood. Here, we developed a nanostructured Mg57Zn36Ca7 (at.%) DP-MG and uncovered its corrosion mechanism in simulated body fluid (SBF) at the near-atomic scale utilizing transmission electron microscope (TEM) and atom probe tomography (APT). The 10-nm-wide Ca-rich amorphous phases allow oxygen propagation into the DP-MG, resulting in a micrometer thick hydroxides/oxides layer. This dense corrosion layer protects the DP-MG from further corrosion, enabling a corrosion rate that is 77% lower than that of Mg (99.99% purity).
Research Area(s)
- APT, Corrosion, Magnesium alloys, Metallic glass, Sputtered films, TEM
Citation Format(s)
Second phase effect on corrosion of nanostructured Mg-Zn-Ca dual-phase metallic glasses. / Liu, Chang; Wang, Qing; Han, Bin et al.
In: Journal of Magnesium and Alloys, Vol. 9, No. 5, 15.09.2021, p. 1546-1555.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
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