Numerical simulation study of erosion failure and corrosion behavior of elbow

Ziyuan Yu; Youxing Zuo; Zhihao Shi; Xinwei Qiang

doi:10.1117/12.3025746

1 April 2024 Numerical simulation study of erosion failure and corrosion behavior of elbow

Ziyuan Yu, Youxing Zuo, Zhihao Shi, Xinwei Qiang

Proceedings Volume 13081, Third International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2023); 130810O (2024) https://doi.org/10.1117/12.3025746
Event: 2023 3rd International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2023), 2023, Tianjin, China

Abstract

In this paper, working medium diversion elbow of underwater engineering equipment is taken as the research object. Based on the Johnson-cook failure model, the erosion failure of Ni electroplating on the inner wall of the elbow caused by Al2O3 particles is analyzed by ABAQUS software. Combined with the erosion failure model of the elbow, the corrosion process of the inner wall of the elbow is simulated in the environment of seawater immersion. The simulation results of particle erosion show that The outer side of the elbow's inner wall 45°-50° from the entrance of the elbow is the area where Ni electroplating layer failure is easy to occur, mainly because the particle erosion inclination angle is large, resulting in the maximum stress and strain. The corrosion simulation results show that the maximum corrosion rate on the four monitoring lines in the elbow is 0.234 mm·a-1. The most serious corrosion area of the elbow is the inner wall of 921 steel at the junction of the erosion wear area and the unwear area. The open-circuit potential difference between Ni electroplating and 921 steel matrix is large, which lead to galvanic corrosion.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ziyuan Yu, Youxing Zuo, Zhihao Shi, and Xinwei Qiang "Numerical simulation study of erosion failure and corrosion behavior of elbow", Proc. SPIE 13081, Third International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2023), 130810O (1 April 2024); https://doi.org/10.1117/12.3025746

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KEYWORDS

Corrosion

Particles

Electroplating

Nickel

Failure analysis

Anodes

Coating

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