低碳钢在薄油膜下的大气腐蚀：盐微滴在油相中的乳化、分散和模拟

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

Corrosion Science Pub Date : 2025-04-15 DOI:10.1016/j.corsci.2025.112942

Xiao-Ze Ma , Xu Wang , Ting Chen , Jia-Chu Yang , Le Shi , Kai Zhu , Xin-Xin Zhang , Wen-Tie Yang , Ze-Hua Dong

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引用次数: 0

摘要

研究了由石油磺酸钠（SPS）和白油组成的防锈油（ARO）在潮湿环境中的变质机理。结果表明，ARO膜能有效拦截入侵的盐滴，保护钢基体。微红外分析表明，SPS可以通过定向吸附和反胶束效应将水分子从游离态转变为束缚态，从而降低了入侵水分对AROs的腐蚀性。然而，过量的盐水侵入可能会破坏油包水（W/O）胶束的稳定，导致水滴重新沉积在钢基体表面。理论计算表明，水团簇和金属离子之间的分子间作用力增强了SPS磺酸基之间的静电斥力，从而破坏了水/油乳液体系，增加了腐蚀的风险。

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Atmospheric corrosion of mild steel under thin oil film: Emulsification, dispersion, and simulation of saline microdroplets in the oil phase

This study investigated the deterioration mechanism of anti-rust oil (ARO) composed of sodium petroleum sulfonate (SPS) and white oil in humid atmospheres. The results demonstrated that ARO film can effectively intercept intruding saline droplets to protect the steel substrate. Micro-infrared analysis reveals that the SPS can transform water molecules from free to bound states through directional adsorption and reversed micelle effect, thereby reducing the corrosivity of intruding moisture in AROs. However, excessive saline intrusion may destabilise water-in-oil (W/O) micelles, causing water droplets to re-deposit on the surface of the steel substrate. Theoretical calculations suggest that the intermolecular forces between water clusters and metal ions enhance the electrostatic repulsion between the sulfonic groups of SPS, thus destroying the water/oil emulsion system and increasing the risk of corrosion.

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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.