Impact Fretting Wear Behavior of Cr-Alloy Coating Layer for Accident-Tolerant Fuel Cladding

Lee, Y. H.; Park, D. J.; Jung, Yang‐Il; Yoo, Sehoon; Kim, H. G.

doi:10.1007/978-3-030-92381-5_128

Cited by 2 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ATF coating cladding has been developed over the years, and relevant studies have shown that the key factor in improving accident tolerance through the application of ATF coatings is to maintain the integrity of the coatings produced without significant degradation during the normal operation of the reactor [22], and, thus, it is important to ensure the integrity of the coatings during fretting corrosion. At present, some research investigations on the fretting corrosion performance of ATF cladding have been carried out in various countries.…”

Section: Introductionmentioning

confidence: 99%

Fretting Corrosion Performance Evaluation of Uncoated Cladding, Cr Coating Cladding and AlCrNbSiTi Coating Cladding

Liu,

Li,

Wang

et al. 2023

Alloys

View full text Add to dashboard Cite

In pressurized water reactors (PWRs), flow-induced vibration (FIV) induces the fretting wear of fuel rods and supporting grids, and the process is accompanied by corrosion, which is called fretting corrosion. In this paper, fretting corrosion experiments were carried out in a simulated cladding service environment, and the fretting corrosion performance of AlCrNbSiTi coating cladding, Cr coating cladding and uncoated cladding with the supporting grids were investigated using a three-dimensional white light interferometer and a scanning electron microscope (SEM). The results showed that the AlCrNbSiTi coating cladding has the strongest fretting corrosion performance, the Cr coating cladding has the second best fretting corrosion performance and the uncoated cladding has the worst fretting corrosion performance. The coating also changes the wear mechanism of the cladding and improves the corrosion resistance of the cladding, which is responsible for the improvement in the fretting corrosion performance of the cladding. By comparing the AlCrNbSiTi coating with the Cr coating, it was found that the AlCrNbSiTi coating has a better fretting corrosion performance than the Cr coating due to its higher hardness and stronger corrosion resistance.

show abstract

Section: Introductionmentioning

confidence: 99%