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A finite element model of carbon steel welded joint corrosion under plastic strain

A finite element (FE) model is presented in this work that simulates and predicts the mechano‐chemical corrosion behavior of welded joint under different plastic strains. The FE model contains two parts: the stress calculating of welded joint using Abaqus software and the chemical reaction of welded joint using COMSOL Multiphysics® software. The simulating corrosion depth of weld metals center are close to experimental measurements on the welded joint under different plastic strains. Meanwhile, effect of weld reinforcement, strain, and welding material on the mechano‐chemical corrosion behavior of welded joint under different plastic strains was investigated using the FE model.

FE model is presented to simulate the mechano‐chemical corrosion behaviour of welded joint. A decrease of weld reinforcement enhances the corrosion of weld metal under plastic strain. An increase of plastic strain aggravates the corrosion of welded joint. Weld metal properties can affect the mechano‐chemical corrosion behaviour of welded joint.

Authors:   Y. X. Lu, H. Y. Jing, Y. D. Han, L. Y. Xu
Journal:   Materials and Corrosion
Year:   2017
Pages:   n/a
DOI:   10.1002/maco.201709620
Publication date:   04-Sep-2017
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