Rearrangement of oxide scale on Ni-11Fe-10Cu alloy under anodic polarization in molten Na2CO3-K2CO3
Rearrangement of oxide scale on Ni-11Fe-10Cu alloy under anodic polarization in molten Na2CO3-K2CO3
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DOI：
10.1016/j.corsci.2018.07.014
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发表时间：
2018-08-15
影响因子：
8.3
通讯作者：
Wang, Dihua
中科院分区：
文献类型：
--
作者：
Cheng, Xinhua;Yin, Huayi;Wang, Dihua
在750 ℃的Na 2CO 3 K2 CO 3熔体中研究了阳极极化对Ni-11 Fe-10 Cu合金预形成氧化膜的影响。预形成的氧化皮在阳极极化下重新排列，使合金能够作为析氧的惰性阳极。阳极极化对修复原始氧化皮中的缺陷具有积极作用，即，修复增强效应，可以增强合金基体的保护性，消除进一步的腐蚀和氧化。本研究证明了一种制备保护性氧化膜的有效方法，并揭示了预形成的氧化膜在阳极极化下的重排。
The effect of anodic polarization on a pre-formed oxide scale of Ni-11Fe-10Cu alloy was investigated in Na2CO3K2CO3 melt at 750 degrees C. The pre-formed oxide scale rearranged under anodic polarization and enabled the alloy as an inert anode for oxygen evolution. The anodic polarization has a positive effect on repairing defects in the original oxide scale, i.e., repair-enhancement effect, which can enhance the protectivity of an alloy substrate and eliminate further corrosion and oxidation. This study demonstrates an effective way to prepare a protective oxide scale, and reveals the rearrangement of pre-formed oxide scale under anodic polarization.