Abstract
The effects of the morphology and the distribution of secondary phases on the bio-corrosion properties of magnesium (Mg) alloys are significant. Focused Ion Beam (FIB) tomography and Micro X-Ray computed tomography (Micro-CT) have been used to characterise the morphology and distribution of (α-Mg + MgZn) and (α-Mg + Ca2 + Mg6 + Zn3) eutectic phase mixtures in as-cast Mg-3Zn and Mg-3Zn-0.3Ca alloys, respectively. There were two different 3D distributions: (i) an interconnected network and (ii) individual spheres. The tomography informed our understanding of the relationship between the distribution of secondary phases and the development of localized corrosion in magnesium alloys.
Original language | English |
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Pages (from-to) | 113-121 |
Number of pages | 9 |
Journal | Materials Characterization |
Volume | 112 |
Early online date | 12 Dec 2015 |
DOIs | |
Publication status | Published - 1 Feb 2016 |
Keywords
- Bio-corrosion
- FIB-SEM
- Magnesium alloy
- Micro-CT
- Microstructure
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
- Condensed Matter Physics