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Prediction of Galvanic Corrosion in Aluminium-Stainless Steel Bolted Connection in Offshore Environment: Advanced Modelling and Simulation

Abstract

The current research work investigates by numerical simulations the degradation of aluminium-stainless steel bolted assemblies. Two assemblies settings were used in this study: aluminium-aluminium (AlAl) and aluminium-stainless steel (Al-SS) lap shear joints with stainless steel bolts, nuts and washers in both assemblies. Cyclic salt spray
corrosion tests were performed for validation of the numerical models.
The numerical results showed that the total weight loss in Al-SS
assembly is approximately 6 times higher compared to that of Al-Al
assembly due to the galvanic corrosion between aluminum and stainless
steel plates.
KEY WORDS: aluminium; AA6082; 316L; stainless steel; galvanic
corrosion; FEM;

Category

Academic chapter/article/Conference paper

Client

  • Research Council of Norway (RCN) / 309281

Language

English

Affiliation

  • SINTEF Industry / Materials and Nanotechnology

Year

2024

Publisher

International Society of Offshore and Polar Engineers

Book

Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference - ISOPE 2024

Issue

34

ISBN

978-1-880653-78-4

Page(s)

3174 - 3179

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