The effect of oblique crack on stability and fracture properties of Cr-coated Zircaloy cladding

Xu, Ze; Wei, Junlong; Liu, Yulan; Wang, Biao

doi:10.1016/j.anucene.2021.108560

Cited by 5 publications

(2 citation statements)

References 35 publications

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“…To compare the effect of coating thickness and crack length on crack propagation, Xu et al (2021b) calculate the equivalent stress intensity factor for oblique cracks and find out that when the coating is relatively thick (>60 µm), the effect of coating thickness is limited. That is, the crack length has more critical effect on crack growth than the coating thickness.…”

Section: Cracking Behaviormentioning

confidence: 99%

Review on performance of chromium-coated zirconium and its failure mechanisms

Li,

Wang,

Chen

et al. 2023

Front. Nucl. Eng.

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The conventional Zircaloy cladding may react with coolant in light water reactors and elicit severe accident at high temperature, which constraint the safe and efficient development of nuclear energy. To avoid the tragedy happened in Fukushima, the concept of Accident Tolerant Fuel (ATF) was developed around the globe to secure the steady operation for nuclear power plants. As a short-term solution, deposition of protective coatings upon the cladding tubes are proved to be effective. Among the coatings, Chromium is one of the most outstanding choices. This paper reviews the recent study results about the performance and failure mechanisms of Cr-coated Zr cladding, including mechanical, irradiation, high-temperature oxidation tests, etc. under normal and/or accident conditions. The experiments and tests collectively suggest that Cr coating possesses excellent comprehensive properties for integrity protection of claddings and provides a promising future of the commercial application in reactor cores. Finally, this review proposes ambiguities and questions needed to be analyzed and clarified in future works.

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Section: Cracking Behaviormentioning

confidence: 99%

Review on performance of chromium-coated zirconium and its failure mechanisms

Li,

Wang,

Chen

et al. 2023

Front. Nucl. Eng.

View full text Add to dashboard Cite

show abstract

“…Also, some cracks initiated from the micro-defects zone at the surface of the coating. A model of Cr coated Zr alloy with an initial oblique crack in the coating was created by Xu et al [135] to investigate the crack length, coating thickness, initial crack inclination angle on the crack propagation behavior. They found that the crack propagation in the plane vertical to the axial direction is controlled by the opening mode crack.…”

Section: Crack Formation and Crack Growthmentioning

confidence: 99%