Synchrotron X-Ray Microtomography Study of the Role of Y in Corrosion of Magnesium Alloy WE43
- 1 January 2007
- journal article
- Published by The Electrochemical Society in Electrochemical and Solid-State Letters
- Vol. 10 (2), C5-C8
- https://doi.org/10.1149/1.2400727
Abstract
Synchrotron X-ray microtomography has been used to study the distribution of Y in the aerospace magnesium alloy WE43 and its role in the morphology of corrosion attack. A three-dimensional Y map was obtained by acquiring tomographic images above and below the Y K-edge at . Tomographic images from a heavily corroded as-cast WE43 sample showed that Y-rich regions of the matrix slow the propagation of corrosion. In situ time-dependent tomographic images of corrosion of heat-treated WE43 show that homogenization of the distribution of Y decreases the corrosion rate, but both general attack and pitting is still observed.Keywords
This publication has 14 references indexed in Scilit:
- In vitro and in vivo corrosion measurements of magnesium alloysBiomaterials, 2005
- Three dimensional imaging of damage in structural materials using high resolution micro-tomographyNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2005
- Three-Dimensional Chemical Analysis with Synchrotron Tomography at Multiple X-ray Energies: Brominated Aromatic Flame Retardant and Antimony Oxide in PolystyreneChemistry of Materials, 2004
- Corrosion behaviour of the Mg65Y10Cu15Ag10 bulk metallic glassMaterials Science and Engineering: A, 2003
- Passivity behavior of melt-spun Mg–Y AlloysElectrochimica Acta, 2003
- Microimaging and tomography with chemical speciationNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2003
- X-ray micro-tomography an attractive characterisation technique in materials scienceNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2003
- X-ray microtomography of materialsInternational Materials Reviews, 1999
- Assessing the Corrosion Resistance of Nonequilibrium Magnesium-Yttrium AlloysCorrosion, 1995
- Technical Note:Improving Corrosion Resistance of Magnesium by Nonequilibrium Alloying with YttriumCorrosion, 1993