Effect of alternating current density on corrosion behaviour of X65 steel in weakly alkaline soil environment without cathodic protection-Reference-Cited by-同舟云学术

Effect of alternating current density on corrosion behaviour of X65 steel in weakly alkaline soil environment without cathodic protection

Published:2024-07-21 Issue: Volume: Page:
ISSN:1478-422X
Container-title:Corrosion Engineering, Science and Technology: The International Journal of Corrosion Processes and Corrosion Control
language:en
Short-container-title:Corrosion Engineering, Science and Technology: The International Journal of Corrosion Processes and Corrosion Control

Author:

Lu Cuiping¹^ORCID,Liu Chao²,Li Ningning²,Ma Hongchi¹,Liu Zhiyong¹,Li Xiaogang¹

Affiliation:

1. Key Laboratory for Corrosion and Protection (MOE), Institute for Advanced Materials and Technology, National Materials Corrosion and Protection Data Center, University of Science and Technology Beijing, Beijing, China

2. Key Laboratory of Safety Evaluation of Steel Pipes and Fittings for State Market Regulation, Hebei Special Equipment Supervision and Inspection Institute, Shijiazhuang, Hebei, China

Abstract

The corrosion behaviour of X65 steel in Shijiazhuang soil-simulated solution was investigated under different alternating current (AC) interference. Results show X65 pipeline steel presented weak passivation characteristics in this weakly alkaline solution, in which case AC interference could activate the anodic dissolution reaction and greatly accelerate uniform corrosion and pitting corrosion. AC interference could easily induce corrosion pits initiation and propagation in this weakly alkaline solution because of unstable passive film on steel surface and low pitting potential. Both the average corrosion rate and corrosion pits depth presented a power function with the increase of AC density.

Publisher

SAGE Publications

Link

https://journals.sagepub.com/doi/pdf/10.1177/1478422X241264925

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