Simulation and Experimental Validation of Bimetallic Corrosion Between Galvanized Bolt and Mild Steel Plate: Effect of the Bolt Configuration

The effect of the bolt configuration (square, hexagonal, and round) and pitch circle diameter on the extent of galvanic corrosion between a galvanized steel M14 bolt and a mild steel plate was studied in neutral buffer solution by numerical simulation, and the results were validated using the ultras...

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Bibliographic Details
Published in:JOM (1989) 2024, Vol.76 (1), p.209-221
Main Authors: Kamble, Prafull A., Deshpande, Pravin P., Vagge, Shashikant T.
Format: Article
Language:English
Subjects:
Aluminum
Bimetals
Bolted joints
Boundary conditions
Buffer solutions
Carbon steel
Chemistry/Food Science
Configurations
Corrosion
Corrosion effects
Diameters
Earth Sciences
Electrolytes
Engineering
Environment
Finite element analysis
Galvanic corrosion
Galvanized steel
Galvanized steels
Galvanizing
Low carbon steels
Magnesium
Physics
Simulation
Simulation models
Software
Steel plates
Surface Engineering for Improved Corrosion or Wear Resistance
Ultrasonic methods
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Summary:The effect of the bolt configuration (square, hexagonal, and round) and pitch circle diameter on the extent of galvanic corrosion between a galvanized steel M14 bolt and a mild steel plate was studied in neutral buffer solution by numerical simulation, and the results were validated using the ultrasonic method. The galvanic couple potential E CG values obtained in the polarization were in good agreement with those obtained by modeling and simulation. Maximum and minimum metal dissolution was noted at the joint interface and away from the joint in all the bolted joints. The round galvanized M14 steel bolt exhibited a minimum thickness loss of ~ 0.49 mm if the pitch circle diameter was 70 mm. The metal loss values obtained by simulation were in close agreement with the ultrasonic measurements. The simulation model can be used to identify corrosion-prone areas in the bolted joint assembly.
ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-023-06257-9