Work

Investigation of corrosion behavior of 16Mn steel gusset plates in marine alternating dry-wet environments using response surface methodology

Year: 2025

Type: article

Abstract: The harsh marine environment causes the corrosion of gusset plates on offshore platforms, which seriously threatens their safety and lifespan. This study investigates the corrosion behavior of 16Mn steel gusset plates in a marine environment, focusing on the effects of chloride ion concentration, dry-wet ratio, and applied stress. The mathematical model, developed using Response Surface Methodology (RSM) and COMSOL Multiphysics simulations, reveals that chloride ion concentration exerts the greatest influence on the corrosion rate, followed by the dry-wet ratio and applied stress. A significant interaction between chloride ion concentration and dry-wet ratio was observed. The model’s R² value is 0.9961, confirming its accuracy. Corrosion mainly occurs at the right-angled edges and curved edges of the gusset plates. These research findings provide a scientific basis for the anti-corrosion design of marine materials, contributing to ensuring the safety of offshore platforms and extending their service life.

Source: npj Materials Degradation

DOI: 10.1038/s41529-025-00593-8

Authors: Decai You, Fei Xie, Dan Wang, Dongxu Sun

Institution: Liaoning Shihua 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: National Natural Science Foundation of China, National Outstanding Youth Science Fund Project of National Natural Science Foundation of China