Corrosion characteristics of zirconium alloy with a high temperature pre-formed oxide film

Hong, Hoon; Yun, Yongseung; Lee, Kyung Sub

doi:10.1016/j.jallcom.2004.07.030

Cited by 7 publications

(5 citation statements)

References 17 publications

(16 reference statements)

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“…It is hoped that ZrO 2 , the corrosion products of Zr, are protective from penetration of oxygen and further corrosion [2,3]. According to the Zr-O phase diagram, ZrO 2 is stable as monoclinic structure (m-ZrO 2 ) under 1205°C [4].…”

Section: Introductionmentioning

confidence: 99%

Elastic properties of cubic, tetragonal and monoclinic ZrO2 from first-principles calculations

Zhao

Shang

Liu

et al. 2011

Journal of Nuclear Materials

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Section: Introductionmentioning

confidence: 99%

Elastic properties of cubic, tetragonal and monoclinic ZrO2 from first-principles calculations

Zhao

Shang

Liu

et al. 2011

Journal of Nuclear Materials

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“…It is one of the best corrosion-resistant and refractive materials used in metallurgy, and is also utilized as a thermal barrier coating in engines [1][2][3]. Zirconia is one of the most radiation resistant ceramics currently known, and is of particular interest to the nuclear industry where it has been used, for example, as a passivating medium for hydrogen ingress in pressure tubes [4][5][6]. The structural and electronic properties of zirconia have been widely reported (e.g.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the vibrational properties of cubic yttria-stabilized zirconia: A combined experimental and theoretical study

Cousland

Mole

Elcombe

et al. 2014

Journal of Physics and Chemistry of Solids

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A combined experimental and theoretical investigation into the vibrational properties of cubic 8-9 mol% yttria-stabilized zirconia (YSZ) is presented. Measurements of acoustic phonon dispersion curves have been obtained from inelastic neutron scattering investigations using a triple axis spectrometer, as well as calculations of the vibrational density-of-states (vDOS) using density-functional theory. The present measurements agree closely with, and extend, previously published results. The phonons become broader and decrease in intensity as the Brillouin zone boundary is approached, particularly in the Γ-Δ-X direction. Interestingly, there is evidence of a previously unreported low energy phonon band (8-9 meV) in the Γ-Σ-X direction, which could possibly be related to the stabilization (by yttria doping) of the imaginary mode of cubic ZrO 2 about the X-point. Compared to pure cubic ZrO 2 , the vDOS of YSZ are broader and extend to higher frequency. Furthermore, the prominent Zr-related feature in the vDOS of c-ZrO 2 at E14 meV is shifted to higher energy in the vDOS of YSZ. This behavior is consistent with the measured dispersion bands (first acoustic branch in the Γ-X direction, about the X-point) of YSZ which is higher in energy by a similar amount relative to that of c-ZrO 2 , thus providing support for the structural model considered.

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“…In the last two decades, Zr especially its alloys have been exploited as fuel cladding and coolant channels in water cooled power reactors in nuclear industry . Thanks to the prosperity of the chemical industry, the utilization of Zr is increasingly wide and the corresponding research is rising up .…”

Section: Introductionmentioning

confidence: 99%

Corrosion behavior of Zirconium R60702 weldment in 75 wt% sulfuric acid

Yao

Luo

Wei

et al. 2013

Materials and Corrosion

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Zirconium R60702 weldment was achieved by tungsten inert gas welding. Hot acid corrosion and electrochemical corrosion tests were performed on the specimens taken from the base metal (BM), the heat-affected zone (HAZ), and the weld zone (WZ) of the weldment in 75 wt% sulfuric acid. Metallographic examination and X-ray diffraction (XRD) analysis showed that the impurity generating in the weldment during welding was zirconium dioxide. Cumulative mass loss test demonstrated that the BM exhibited good resistance to hot acid corrosion, the HAZ less, and the WZ least. Scanning electron microscope images illustrated that the corrosion mechanism of the BM was pitting whereas that of the WZ was inter-granular corrosion. In contrast, pitting and inter-granular coexisted in the HAZ. Anodic polarization and electrochemical impedance spectroscopy tests showed similar result to that of the hot acid corrosion test. In the electrochemical corrosion condition, the WZ had worse corrosion resistance than the other two parts. Therefore, the WZ is the key area of corrosionresistance protection of the Zr R60702 weldment.

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Corrosion characteristics of zirconium alloy with a high temperature pre-formed oxide film

Cited by 7 publications

References 17 publications

Elastic properties of cubic, tetragonal and monoclinic ZrO2 from first-principles calculations

Elastic properties of cubic, tetragonal and monoclinic ZrO2 from first-principles calculations

Investigation of the vibrational properties of cubic yttria-stabilized zirconia: A combined experimental and theoretical study

Corrosion behavior of Zirconium R60702 weldment in 75 wt% sulfuric acid

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