Work

Rational determination of real-time corrosion rates based on ultrasonic wall thickness loss data

Year: 2025

Type: article

Abstract: Real-time corrosion rate measurement is crucial to understanding corrosion kinetics and proposing effective corrosion control and prevention strategies. In situ ultrasonic testing has emerged as a promising approach for monitoring corrosion-induced wall thickness losses. In this work, the Generalized Likelihood Ratio (GLR) algorithm is adopted to process the wall thickness measurements acquired by in situ ultrasonic testing, so as to achieve rational and automated determination of real-time corrosion rates. During a corrosion process, the GLR algorithm will continuously gauge the probability of occurrence of a change in corrosion rate; once it deems that a change has occurred, the new corrosion rate will be evaluated based on the data points bounded by the present and the preceding change in corrosion rate. The proposed corrosion rate monitoring technique was applied to both controlled and natural corrosion processes, demonstrating high measurement accuracy and stability as well as robustness in complex corrosion systems.

Source: npj Materials Degradation

DOI: 10.1038/s41529-025-00660-0

Authors: Yunda Chen, Xinru Bai, Minghao Guo, Fangxin Zou, Guozhe Meng

Institutions: Hong Kong Polytechnic University, Sun Yat-sen University

Language: English

Topic: Corrosion Behavior and Inhibition

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,590

Funders: Impact Fund, National Natural Science Foundation of China, Research Grants Council, University Grants Committee, Guangdong Science and Technology Department