Microstructure and corrosion resistance of Cr/Cr2N multilayer film deposited on the surface of depleted uranium

作者：Zhu Shengfa^*; Chen Lin; Wu Yanping; Hu Yin; Liu Tianwei; Tang Kai; Wei Qiang

来源：Corrosion Science, 2014, 82: 420-425.

DOI：10.1016/j.corsci.2014.02.011

• Sputtered films
• AES
• SEM
• Oxidation
• Interface

Depleted uranium is widely used in national defence and nuclear energy fields. However, the inferior corrosion resistance limits its application. A Cr/Cr2N film was prepared by magnetron sputtering on the uranium to improve its corrosion resistance. The Cr/Cr2N film exhibits modulation structure. The introduction of the Cr/Cr2N increases the corrosion potential; the corresponding current density decreases about three orders of magnitude. After polarization corrosion, the surface morphology of the Cr/Cr2N-coated on uranium keeps integrated. Only a thin layer of film (similar to 40 nm) is oxidized. The Cr/Cr2N film shows great potential in improving oxidation and corrosion resistance of depleted uranium.

• 出版日期2014-5
• 单位中国工程物理研究院