Abstract The effect of anodic polarization on a pre-formed oxide scale of Ni-11Fe-10Cu alloy was investigated in Na2CO3-K2CO3 melt at 750 °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.

中文翻译：

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熔融Na 2 CO 3 -K 2 CO 3 阳极极化下Ni-11Fe-10Cu合金氧化皮的重排

摘要 在750 °C 的Na2CO3-K2CO3 熔体中研究了阳极极化对Ni-11Fe-10Cu 合金预形成氧化皮的影响。预先形成的氧化皮在阳极极化下重新排列，使合金成为析氧的惰性阳极。阳极极化对修复原始氧化皮中的缺陷具有积极作用，即修复增强作用，可以增强合金基体的保护性，消除进一步的腐蚀和氧化。该研究展示了一种制备保护性氧化皮的有效方法，并揭示了阳极极化下预先形成的氧化皮的重排。