咪唑啉膦酸盐抑制剂抑制沉积物腐蚀中硫酸盐还原菌诱导的性能及机理

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-09-13 DOI:10.1016/j.corsci.2025.113317

Ting Xu, Min Du, Gengxin Li

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引用次数: 0

摘要

研究了咪唑啉膦酸盐缓蚀剂（IPI）在模拟CO 2饱和油田采出水中不同生长阶段硫酸盐还原菌（SRB）形成的腐蚀产物膜下对X65钢的缓蚀性能。300 mg/L IPI可有效减轻不同条件下腐蚀产物膜的腐蚀。IPI对srb腐蚀的缓蚀效率超过80% %，显著降低点蚀。IPI可以吸附在X65钢上，重新组织最初无序和脱落的腐蚀产物膜。分子动力学（MD）模拟揭示了IPI的抑制机制，揭示了其对Fe（11 0 0）的优先吸附优于FeS（0 0 0 1）。

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The performance and mechanisms of imidazoline phosphonate inhibitors in mitigating sulfate-reducing bacteria-induced under deposit corrosion

The inhibition performance of an imidazoline phosphonate corrosion inhibitor (IPI) on X65 steel beneath corrosion products film formed by sulfate-reducing bacteria (SRB) at different growth stages in simulated CO₂-saturated oilfield produced water was investigated. 300 mg/L IPI effectively mitigated corrosion under varying conditions of the corrosion products film. IPI demonstrated over 80 % inhibition efficiency against SRB-induced corrosion and significantly reduces pitting corrosion. IPI can adsorb onto X65 steel and reorganize the initially disordered and detached corrosion products film. Molecular dynamics (MD) simulations elucidated IPI's inhibition mechanism, revealing its preferential adsorption on the Fe (1 1 0) compared to the FeS (0 0 1).

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.