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Corrosion performance of Ti3SiC2, Ti3AlC2, Ti2AlC and Cr2AlC MAX phases in simulated primary water conditions
Journal article   Open access   Peer reviewed

Corrosion performance of Ti3SiC2, Ti3AlC2, Ti2AlC and Cr2AlC MAX phases in simulated primary water conditions

Joseph Ward, David Bowden, Eric Prestat, Sam Holdsworth, David Stewart, Michel W. Barsoum, Michael Preuss and Philipp Frankel
Corrosion science, v 139, pp 444-453
15 Jul 2018
DOI: https://doi.org/10.1016/j.corsci.2018.04.034
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https://doi.org/10.1016/j.corsci.2018.04.034View
Published, Version of Record (VoR)CC BY V4.0,  Open

Abstract

Materials Science Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Science & Technology Technology
The response of Ti3SiC2, Ti3AlC2, Ti2AlC and Cr2AlC MAX phases under simulated primary water has been explored for the first time. Samples were tested for 28 days in 300 degrees C water with the addition of 2 ppm LiOH. The Ti-based MAX phases formed oxides of TiO and TiFeO3. X-ray diffraction and scanning electron microscopy showed no evidence of a passive Al or Si-based layer forming during testing. A-layer dissolution was observed to cause delamination of the layered structure. In contrast, Cr2AlC showed little change during autoclave testing, suggesting that a thin passivating chromia layer was formed.

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Industry collaboration
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Materials Science, Multidisciplinary
Metallurgy & Metallurgical Engineering
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