Scholarlink

<p>The inhibitory effect of compositions based on sodium alginate and zinc salts on the aluminum alloy corrosion in a&#xa0;chloride-containing medium was studied. It was found that the protective effectiveness largely depends on the nature of the anion in the zinc salt composition. The mechanisms of the protective films’ formation on the alloy surface were characterized based on the results of electrochemical measurements, electron microscopy, and energy-dispersive X‑ray microanalysis. The highest corrosion resistance (96%) was demonstrated by the composition with zinc acetate, caused by the formation of a&#xa0;homogeneous film with high charge transfer resistance. The composition based on zinc nitrate protected at the level of 93% due to surface passivation and the formation of an oxide layer. Composition with zinc sulfate showed the lowest efficiency (82–83%), which is associated with the formation of less stable sorption structures.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Corrosion inhibition of aluminum alloy with compositions based on sodium alginate and zinc salts

  • 期刊论文

  • 发表日期：

    2025年11月1日

查看全文
  • S. A. Korniy,
  • I. M. Zin,
  • O. P. Khlopyk,
  • N. Yo. Sobodosh

摘要

The inhibitory effect of compositions based on sodium alginate and zinc salts on the aluminum alloy corrosion in a chloride-containing medium was studied. It was found that the protective effectiveness largely depends on the nature of the anion in the zinc salt composition. The mechanisms of the protective films’ formation on the alloy surface were characterized based on the results of electrochemical measurements, electron microscopy, and energy-dispersive X‑ray microanalysis. The highest corrosion resistance (96%) was demonstrated by the composition with zinc acetate, caused by the formation of a homogeneous film with high charge transfer resistance. The composition based on zinc nitrate protected at the level of 93% due to surface passivation and the formation of an oxide layer. Composition with zinc sulfate showed the lowest efficiency (82–83%), which is associated with the formation of less stable sorption structures.