Influence of oxygen on metastable pitting behavior of super 13Cr stainless steel in CO2-saturated environment

IF 3.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Vacuum Pub Date : 2024-11-19 DOI:10.1016/j.vacuum.2024.113845

Lv Naixin , Fu Anqing , Chen Chao , Bai Haitao , Zhao Zaipeng , Li Xuanpeng , Xu Zhengyi , Guozhe Meng

引用次数: 0

Abstract

This study investigates the effect of oxygen on the metastable pitting corrosion behavior of Super 13Cr martensitic stainless steel in a CO₂-saturated environment, which is pertinent to challenging extraction conditions of oil and gas industry. Potentiostatic polarization and comprehensive statistical analysis to assess the corrosion dynamics. The results indicate that the presence of oxygen significantly influences the initiation and progression of metastable pitting. In the 50 % O₂ + 50 % CO₂ environment, a decrease in the frequency and size of metastable pitting events was observed, along with a reduction in the peak current, pit radius, and stable product, suggesting that oxygen inhibits the transition from metastable to stable pitting.

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氧气对二氧化碳饱和环境中超 13Cr 不锈钢瞬态点蚀行为的影响

本研究探讨了氧气对超级 13Cr 马氏体不锈钢在二氧化碳饱和环境中的转移点腐蚀行为的影响，这与石油和天然气工业的挑战性开采条件有关。通过恒电位极化和综合统计分析来评估腐蚀动态。结果表明，氧气的存在极大地影响了易生点蚀的发生和发展。在 50%O2 + 50% CO2 的环境中，观察到可迁移点蚀事件的频率和大小有所下降，峰值电流、点蚀半径和稳定产物也有所减少，这表明氧气抑制了从可迁移点蚀到稳定点蚀的转变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Vacuum 工程技术-材料科学：综合

CiteScore

6.80

自引率

17.50%

发文量

审稿时长

34 days

期刊介绍： Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below. The scope of the journal includes: 1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes). 2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis. 3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification. 4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.