High temperature Zircaloy-4 oxidation in water vapour-containing environments examined with Raman imaging and labelled oxygen

Mermoux, Michel; Duriez, Christian; Coindreau, Olivia

doi:10.1016/j.corsci.2021.109351

Cited by 5 publications

(8 citation statements)

References 36 publications

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“…These results are fully described in Mermoux et al [77] Again, preliminary measurements tend to show that these findings are to be modulated according to the composition of the alloy.…”

Section: Oxidation In Mixed Steam-air Atmospheressupporting

confidence: 69%

“…have been removed from the original data file. Partially redrawn from Mermoux et al [77] data on the oxygen transport in the layers. One can thus visualize quickly several parallel diffusion or penetration paths (grains, grain boundaries, open porosity, etc.).…”

Section: Discussionmentioning

confidence: 99%

“…In this last case, the whole experimental protocol has to be designed to prevent or limit gas phase isotopic scrambling. [ 77 ]…”

Section: Using Labeled Oxygen During the Oxidation Testsmentioning

confidence: 99%

“…In this last case, the whole experimental protocol has to be designed to prevent or limit gas phase isotopic scrambling. [77] Secondary ion mass spectroscopy (SIMS) is most often the technique used to track the isotope distribution in the oxide layer after the oxidation tests. [73,75,76] Nevertheless, even if rarely used for such a purpose, micro-Raman spectroscopy is another technique that is able to extract 18 O profiles in the oxide layers.…”

Section: Using Labeled Oxygen During the Oxidation Testsmentioning

confidence: 99%

“…As described in Mermoux et al, [77] oxidation tests were performed in mixed N 2 -18 O 2 -H 2 16 O atmospheres. Again, to discriminate between the respective contributions of steam and oxygen, high purity (97%) 18 O 2 had to be used.…”

Section: Oxidation In Mixed Steam-air Atmospheresmentioning

confidence: 99%

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Raman imaging in corrosion science: High‐temperature oxidation of the zirconium alloys used in the nuclear industry as an example

Mermoux

Duriez

2021

J Raman Spectroscopy

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Successive technological improvements have made Raman imaging systems very efficient. Raman imaging applications now cover a wide range of scientific fields, including high-temperature materials corrosion, also known as dry corrosion. The analysis of the phenomena occurring during corrosion requires knowledge in metallurgy, thermodynamics, chemical kinetics, solid-state chemistry, and physics. Part of this information (crystallographic phases, stress state, oxygen transport, etc.) can be obtained, at least qualitatively, from the analysis of Raman images of the oxidation layer. Throughout this paper, we consider as a prototypal example the oxidation of a particular zirconium alloy, Zircaloy-4, used in the nuclear industry as cladding materials in light-water reactors. Through some examples, the aim of the present paper is to describe what kind of information this method can bring, to review its merits and weaknesses. The analysis protocols methods described herein are not exhaustive, but most probably represent a simple way to read and understand the Raman images. These few examples show that rather subtle details that concern phase distribution, strain, and oxygen transport can effectively be captured by this method. Most probably, Raman imaging may be applied to other alloys or systems as well.

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“…These results are fully described in Mermoux et al [77] Again, preliminary measurements tend to show that these findings are to be modulated according to the composition of the alloy.…”

Section: Oxidation In Mixed Steam-air Atmospheressupporting

confidence: 69%

Section: Discussionmentioning

confidence: 99%

“…In this last case, the whole experimental protocol has to be designed to prevent or limit gas phase isotopic scrambling. [ 77 ]…”

Section: Using Labeled Oxygen During the Oxidation Testsmentioning

confidence: 99%