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This study investigates the corrosion inhibition performance and mechanism of a benzotriazole derivative, 5-methyl-1H-benzotriazole (MHBT), on X80 steel in an acidic NaHCO₃ solution (pH 4.5). The effects of varying inhibitor concentration (1–50 ppm) and temperature (303–343 K) were assessed through electrochemical and surface analyses. Results indicate that MHBT provides effective corrosion protection by adsorbing onto the steel surface, forming a stable layer that reduces corrosion rates. The inhibition efficiency of MHBT improved with both concentration and temperature, attributed to enhanced solubility and surface coverage at higher temperatures.

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Benzotriazole Derivative as an Effective Corrosion Inhibitor for X80 Steel Corrosion in Acidic Medium

  • 会议论文

  • 发表日期：

    2026年

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  • Feifan Xu,
  • Luntao Wang,
  • Bingxiao Shi,
  • Guowei Yang,
  • Xuequn Cheng

摘要

This study investigates the corrosion inhibition performance and mechanism of a benzotriazole derivative, 5-methyl-1H-benzotriazole (MHBT), on X80 steel in an acidic NaHCO₃ solution (pH 4.5). The effects of varying inhibitor concentration (1–50 ppm) and temperature (303–343 K) were assessed through electrochemical and surface analyses. Results indicate that MHBT provides effective corrosion protection by adsorbing onto the steel surface, forming a stable layer that reduces corrosion rates. The inhibition efficiency of MHBT improved with both concentration and temperature, attributed to enhanced solubility and surface coverage at higher temperatures.