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The Property of Oxide Film of Nanostructure Zircaloy-4 under the 673k/10.3MPa Condition

机译:673k / 10.3MPa条件下Zircaloy-4纳米结构氧化物膜的性能

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The corrosion properties of surface nanocrystallined (SNC) Zircaloy-4 were studied at various corrosion periods under the condition of 673K/10.3MPa in pure water. Experimental evidences indicated that many equiaxed grains were discovered in the oxide films formed on the nanostructure basis. Simultaneously, the metal/oxide (M/O) interface of nanostructure (NS) Zircaloy-4was more regular and glossy than that of coarse-grain structure (CGS) Zircaloy-4. Furthermore; the absence of Oxygen-rich area at the M/O interface of nanostructure (NS) Zircaloy-4 implied the corrosion process is lagged of the traditional zircaloy-4, which indicated that NS Zircaloy-4 had a better corrosion resistance.
机译:在纯水中,在673K / 10.3MPa的条件下,研究了纳米Zircaloy-4表面纳米晶在不同腐蚀时间下的腐蚀性能。实验证据表明,在纳米结构基础上形成的氧化膜中发现了许多等轴晶。同时,纳米结构(NS)Zircaloy-4的金属/氧化物(M / O)界面比粗颗粒结构(CGS)Zircaloy-4的规则/光泽度更高。此外;纳米结构Zircaloy-4的M / O界面处没有富氧区域,这意味着腐蚀过程落后于传统的Zircaloy-4,这表明NS Zircaloy-4具有更好的耐腐蚀性。

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