Luyu Chen, Tao Fu, Yingyi Zhang, Hong Wang, Shinan Li
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引用次数: 0
摘要
随着核工业的快速发展，锆合金作为核反应堆的事故耐受燃料受到越来越多的关注。然而，在 1000 °C 以上的高温环境中，锆合金燃料涂层的氧化率会迅速增加，从而导致灾难性的核泄漏事件。通过表面涂层技术可以显著提高锆合金的耐腐蚀性。本研究介绍了铬涂层、复合涂层、多层涂层和 MAX 相涂层在氧化前后的微观结构和相组成演变。此外，还分析和总结了锆合金表面涂层的氧化行为和失效机理。最后，对锆合金表面涂层的主要问题和挑战进行了总结和展望。
Microstructure and high-temperature oxidation behaviour of anti-oxidation coating on zirconium alloys: An overview
Due to the rapid development of the nuclear industry, zirconium alloys have received more and more attention as accident-tolerant fuel for nuclear reactors. However, the oxidation rate of zirconium alloy fuel coating will increase rapidly in the high-temperature environment above 1000 °C, which leads to a catastrophic nuclear leakage event. The corrosion resistance of zirconium alloy can be significantly improved through the surface coating technology. In this work, the microstructure and phase composition evolutions of chromium coating, composite coating, multilayer coating and MAX phase coating before and after oxidation are introduced. In addition, the oxidation behaviour and failure mechanism of the surface coating of zirconium alloy were analysed and summarised. Finally, the main problems and challenges of coating on the zirconium alloy surface are summarised and prospected.
期刊介绍：
Surface Engineering provides a forum for the publication of refereed material on both the theory and practice of this important enabling technology, embracing science, technology and engineering. Coverage includes design, surface modification technologies and process control, and the characterisation and properties of the final system or component, including quality control and non-destructive examination.
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