Residual stresses and tetragonal phase fraction characterisation of corrosion tested Zircaloy-4 using energy dispersive synchrotron X-ray diffraction

Polatidis, Efthymios; Frankel, Philipp; Wei, J.; Klaus, Manuela; Comstock, R. J.; Ambard, Antoine; Lyon, S.B.; Cottis, R.A.; Preuss, Michael

doi:10.1016/j.jnucmat.2012.07.025

Cited by 115 publications

(88 citation statements)

References 38 publications

(66 reference statements)

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“…These conditions are very similar to those experienced by oxidising zirconium alloys in nuclear reactors or autoclaves, and these oxide films also demonstrate a continuous reduction in tetragonal phase fraction and degradation in the protective character of the oxide layer (Petigny, 2000;P. Platt et al, 2015b;Polatidis et al, 2013;Preuss et al, 2011;Zhang et al, 2010). In both cases a key issue is the ingress of oxygen containing species.…”

Section: Introductionsupporting

confidence: 54%

“…Studies have correlated increased tetragonal phase fraction with the increased compressive stress in the oxide layer Polatidis et al, 2013). This compressive stress could also be the reason that phase transformation induced fracture is much less extensive in oxides formed on zirconium alloys.…”

Section: Development and Validationmentioning

confidence: 99%

“…The macro-scale compressive stress, micro-scale stress concentrations, grain boundary porosity, and lateral crack distributions through the oxide layer all vary depending on the thickness of the oxide & oxidation time relative to the transition points in the oxidation kinetics (Berdin et al, 2015;Ni et al, 2010;P Platt et al, 2015;P. Platt et al, 2015b;Polatidis et al, 2013;Swan et al, 2016). Given the range of simultaneously occurring factors in either of these material degradation scenarios attributing one experimental outcome to a specific input can be misleading.…”

Section: Development and Validationmentioning

confidence: 99%

“…Zirconia thin films can experience residual biaxial compressive stresses of the order of MPa to GPa, whether the material is applied as a coating (Scardi et al, 2004;Teixeira and Andritschky, 1999), or formed during thermal oxidation (Béchade et al, 2000;Jacquot et al, 1996;Petigny, 2000;P. Platt et al, 2015b;Polatidis et al, 2013;Preuss et al, 2011;Zhang et al, 2010). It is possible to destabilise the tetragonal phase by applying a tensile hydrostatic stress e.g.…”

Section: Introductionmentioning

confidence: 99%

“…In engineering ceramics this mechanism is referred to as transformation toughening because of the resulting retardation of crack growth by the tetragonal to monoclinic phase change and its associated increase in volume (Budiansky, 1983;Evans and Heuer, 1980;Kelly and Francis Rose, 2002). Oxides formed on zirconium alloys in autoclave and reactor undergo a transition and acceleration in the corrosion kinetics that has previously been linked with the formation of a network of lateral cracks close to the metal-oxide interface (Bossis et al, 2001;Polatidis et al, 2013;Yilmazbayhan et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Peridynamic simulations of the tetragonal to monoclinic phase transformation in zirconium dioxide

Platt

Mella

DeMaio

et al. 2017

Computational Materials Science

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Whether present as a manufactured stabilised ceramic, or as an oxide layer on zirconium alloys, mechanical degradation in zirconia is influenced by the tetragonal to monoclinic phase transformation.Peridynamic theory was implemented within the Abaqus finite element framework to understand how the tetragonal to monoclinic phase transformation can itself cause fracture in zirconia. In 2D these simulations represent a single grain, transforming via an isometric dilational expansion, surrounded by a homogenous monoclinic oxide. The effect of transformation time, applied bi-axial pressure, and the fracture strain were assessed using the change in strain energy and the amount of damage in the oxide surrounding the transformed grain. Reducing the applied compressive stress or applying a tensile stress reduces the transformation strain energy. The introduction of a fracture strain leads to damage in the surrounding oxide region largely in the form of cracks, and reduces the transformation strain energy further by reducing the constraint on the transforming grain. The extent of the fracture, and reduction in constraint on the transformed grain, is more significant with the application of a biaxial tensile pressure.

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Section: Introductionsupporting

confidence: 54%

Section: Development and Validationmentioning

confidence: 99%

Section: Development and Validationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Peridynamic simulations of the tetragonal to monoclinic phase transformation in zirconium dioxide

Platt

Mella

DeMaio

et al. 2017

Computational Materials Science

Self Cite

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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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Effect of Cu on microstructure and corrosion behavior in 360°C lithiated aqueous solution of Zr–Cu alloys

Lin

Fan

Zhang

et al. 2021

Materials & Corrosion

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The effect of Cu on the microstructure and corrosion behavior in 360°C lithiated water was investigated on Zr–xCu alloys (x = 0.05, 0.2, and 1.0, wt%), with remelted pure Zr as reference material. The results revealed that the tetragonal Zr2Cu phase was induced by Cu addition higher than 0.2 wt% and its size and number density were increased with the increase of Cu content. The weight gain and oxide thickness were decreased by Cu addition, but when the Cu content increased to 1.0 wt%, they were both significantly increased and even larger than that of remelted Zr. It was supposed that structural defects, such as pores and microcracks, in the oxide film may result in such degradation in the corrosion property of Zr–1.0Cu alloy.

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Residual stresses and tetragonal phase fraction characterisation of corrosion tested Zircaloy-4 using energy dispersive synchrotron X-ray diffraction

Cited by 115 publications

References 38 publications

Peridynamic simulations of the tetragonal to monoclinic phase transformation in zirconium dioxide

Peridynamic simulations of the tetragonal to monoclinic phase transformation in zirconium dioxide

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

Effect of Cu on microstructure and corrosion behavior in 360°C lithiated aqueous solution of Zr–Cu alloys

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