Oxidation of Zircaloy-2 studied using a wedge-shaped specimen

Hutchinson, Bevis; Hallstadius, Lars

doi:10.1016/j.jnucmat.2012.08.023

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-Oxide Microstructure1

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Cited by 5 publications

(2 citation statements)

References 20 publications

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“…The growth of the in-plane cracks partly relieves the overall compressive stresses in the oxide. Plastic deformation of the metal substrate also relieves the stresses caused by oxidation [36][37][38][39][40] .…”

Section: -Oxide Microstructurementioning

confidence: 99%

Effect of pH on Hydrogen Pick-Up and Corrosion in Zircaloy-4

Sayers

2017

The Minerals, Metals &Amp; Materials Series

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Section: -Oxide Microstructurementioning

confidence: 99%

Effect of pH on Hydrogen Pick-Up and Corrosion in Zircaloy-4

Sayers

2017

The Minerals, Metals &Amp; Materials Series

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“…The oxidation behavior of these alloys has been extensively studied by a variety of methods. These methods include microbeam synchrotron diffraction [23][24][25], transmission electron microscopy (TEM) [14,[26][27][28], scanning electron microscopy (SEM) [12,14,[23][24][25]29], optical microscopy [23,30], and x-ray diffraction [25,29,30]. These techniques have provided an extensive knowledge base for the morphology and structure of the oxides formed on these alloys, including cracking behavior [23,26], crystal structure [23,25,26,29], and the start of breakaway corrosion [9,31].…”

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confidence: 99%

Determination of the initial oxidation behavior of Zircaloy-4 by in-situ TEM

Harlow

Ghassemi

Taheri

2016

Journal of Nuclear Materials

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The corrosion behavior of Zircaloy-4 (Zry-4), specifically by oxidation, is a problem of great importance as this material is critical for current nuclear reactor cladding. The early formation behavior and structure of the oxide layer during oxidation was studied using in-situ TEM techniques that allowed for Zry-4 to be monitored during corrosion. These environmental exposure experiments were coupled with precession electron diffraction to identify and quantify the phases present in the samples before and after the oxidation. Following short-term, high temperature oxidation, the dominant phase was revealed to be monoclinic ZrO 2 in a columnar structure. These samples oxidized in-situ contained structures that correlated well with bulk Zry-4 subjected to autoclave treatment, which were used for comparison and validation of this technique. By using in-situ TEM the effect of microstructure features, such as grain boundaries, on oxidation behavior of an alloy can be studied. The technique presented herein holds the potential to be applied any alloy system to study these effects.

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