Coupling electrochemical permeation technique with respirometry: A novel approach for the simultaneous monitoring of corrosion-induced hydrogen formation and uptake

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

Corrosion Science Pub Date : 2025-08-05 DOI:10.1016/j.corsci.2025.113239

Nikola Macháčková, Klára Kuchťáková, Mehrdad Hoseinpoor, Tomáš Prošek

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Abstract

Corrosion-induced cathodic hydrogen evolution results in the formation of hydrogen, some of which enters the steel, possibly leading to critical failure of steel components. The relationship between hydrogen formation and uptake is still lacking in the literature. To address this, we developed a new technique coupling manometric respirometry and an electrochemical permeation technique to simultaneously monitor hydrogen formation and permeation. Galvanized press-hardened steel with ultimate tensile strength over 1500 MPa was tested under immersion corrosion conditions. Using combined electrochemical permeation and respirometry, hydrogen uptake efficiency in different phases of the corrosion process was determined to 6.7 % in average. Crucial role of coating cracks as locations of hydrogen entry in the beginning of the corrosion process was shown. Stable corrosion products gradually suppressed hydrogen entry. The novel electrochemical permeation and respirometry technique is a versatile approach for understanding corrosion-induced hydrogen formation and uptake.

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耦合电化学渗透技术与呼吸测量：一种同时监测腐蚀诱导的氢形成和吸收的新方法

腐蚀诱导的阴极析氢导致氢的形成，其中一些氢进入钢中，可能导致钢构件的临界失效。氢的形成和吸收之间的关系在文献中仍然缺乏。为了解决这个问题，我们开发了一种耦合压力呼吸法和电化学渗透技术的新技术，以同时监测氢的形成和渗透。在浸没腐蚀条件下，对极限抗拉强度超过1500 MPa的镀锌压硬化钢进行了试验。采用电化学渗透法和呼吸法联合测定了腐蚀过程中不同阶段的吸氢效率，平均为6.7 %。在腐蚀过程的开始阶段，涂层裂纹作为氢进入的位置起着至关重要的作用。稳定的腐蚀产物逐渐抑制氢的进入。新的电化学渗透和呼吸测量技术是了解腐蚀诱导的氢形成和吸收的一种通用方法。

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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.