Electrochemical corrosion, hydrogen penetration and stress corrosion cracking behavior of X80 steel heat-affected zone in sulfate-reducing bacteria-containing seawater
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Abstract
The electrochemical corrosion, hydrogen penetration, and stress corrosion cracking (SCC) behaviors of simulated intercritical heat-affected zone (ICHAZ), fine-grained heat-affected zone (FGHAZ), and coarse-grained heat-affected zone (CGHAZ) are investigated in inoculated seawater. The results show that sulfate-reducing bacteria (SRB) accelerates corrosion and increases SCC susceptibility. However, there are variations in the degree of influence of SRB on corrosion of different microstructures. The differences are closely associated with the amount and location of SRB adhesion to the simulated HAZ microstructure. This is attributed to differences in grain boundary types, dislocation density, local strain accumulation and surface Volta potential of the simulated microstructures.
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.
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