Influence of duty cycle in arc ion plating on the microstructure, electrochemical and high-temperature oxidation behavior of Cr coated Zr alloy; Surface and Coatings Technology; Vol. 517

Influence of duty cycle in arc ion plating on the microstructure, electrochemical and high-temperature oxidation behavior of Cr coated Zr alloy; Surface and Coatings Technology; Vol. 517

Bibliografiska uppgifter
Parent link:Surface and Coatings Technology.— .— Amsterdam: Elsevier Science Publishing Company Inc.
Vol. 517.— 2025.— Article number 132830, 13 p.
Övriga upphovsmän: Cheng Hou, Jian Sun, Kashkarov E. B. Egor Borisovich, Junyan Wang, Yang Zhao, Hailiang Ma, Fei Sun, Zeng Lin
Sammanfattning:Title screen
Since the Fukushima nuclear power plant accident, the safety of nuclear fuel has garnered significant attention. To enhance the corrosion and oxidation resistance of nuclear fuel cladding coatings, this study employed arc ion plating technology to deposit Cr coatings with varying duty cycles in the range of 20–99 %. The influence of duty cycle on the microstructure, electrochemical behavior, and high-temperature oxidation behavior of the Cr coatings on Zr-4 alloy was systematically investigated. The results indicated that as the duty cycle increased, the surface roughness of the coatings rose, while the coating thickness significantly decreased, transitioning from a columnar structure to a dense structure and then to a porous structure. Among these, the 40 % duty cycle coating exhibited the optimal mechanical properties. Electrochemical tests demonstrated that the Cr coating significantly improved the corrosion resistance of Zr-4 in LiOH solution. Notably, the 40 % duty cycle sample showed the lowest corrosion current and the most stable passivation film. High-temperature oxidation experiments, conducted at 1000, 1100, and 1200 °C in air for 1 h, revealed that lower duty cycle coatings were more effective in suppressing oxygen diffusion and maintaining interfacial integrity, while higher duty cycle samples were prone to delamination and cracking of oxide layers. This study provides new insights for the research and optimization of the deposition conditions and performance of Cr coatings
Текстовый файл
AM_Agreement
Språk:engelska
Publicerad: 2025
Ämnen:
электронный ресурс
труды учёных ТПУ
Arc ion plating
Cr coating
Duty cycle
Microstructure
Corrosion resistance
High-temperature oxidation
Länkar:https://doi.org/10.1016/j.surfcoat.2025.132830
Materialtyp: Elektronisk Bokavsnitt
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=684814

Liknande verk

Liknande verk