Unravelling the role of calcareous deposits on hydrogen uptake: The duality in the calcite behavior

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

Corrosion Science Pub Date : 2024-11-18 DOI:10.1016/j.corsci.2024.112586

Razieh Tavassolian, Kim Verbeken, Tom Depover

引用次数: 0

Abstract

The permeation of hydrogen in carbon steel immersed in deaerated NaCl and artificial seawater solutions under various cathodic polarization is investigated using the Devanathan and Stachurski method combined with in-situ electrochemical impedance spectroscopy (EIS). The results indicate calcite's dual role in hydrogen uptake: it promotes uptake for bare samples and lower cathodic currents, but inhibits it for preformed deposits and higher cathodic currents. Deposits are characterized through in-situ EIS and scanning electron microscopy, providing further insights into the specific morphology of calcite. These findings are correlated with hydrogen permeation results, elucidating a mechanism for the dual behavior of calcite.

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揭示钙质沉积对氢吸收的作用：方解石行为的双重性

采用 Devanathan 和 Stachurski 方法，结合原位电化学阻抗光谱法 (EIS)，研究了在不同阴极极化条件下，浸入脱氧氯化钠和人工海水溶液的碳钢中氢的渗透情况。结果表明方解石在氢吸收中的双重作用：对于裸样品和较低的阴极电流，方解石促进氢吸收；而对于预形成的沉积物和较高的阴极电流，方解石则抑制氢吸收。沉积物通过原位 EIS 和扫描电子显微镜进行表征，进一步揭示了方解石的具体形态。这些发现与氢渗透结果相关联，阐明了方解石双重行为的机理。

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

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.