Fatigue Properties of Welded Structural Steels Initiated from Long-Term Corroded Surfaces

Noboru Konda; Yoichi Kayamori

doi:10.4028/p-240wEV

Paper Titles

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Evaluation of Cold Cracking Susceptibility in Fully Pearlitic Rail Steel during Flux Cored-Arc Welding Using Implant Testing
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Study of Weld Cracking Detectability on JIS G4404-SKD 11 Cold Work Steel Using Eddy-Current Testing
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Fatigue Properties of Welded Structural Steels Initiated from Long-Term Corroded Surfaces
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High Temperature Oxidation of Fe-18Cr-Nano Al₂O₃ ODS Steel in Humidified Atmospheres
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Hot Corrosion, Phase Stability and Compressive Strength of AlCrFeNiCu-Nb High Entropy Alloy Fabricated via Additive Manufacturing
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Microstructural Evolution and Mechanical Behaviour of AlCrFeNiCu High Entropy Alloy Doped with Ti
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Evaluation of TWAS Coatings Wear Mechanism by Means of SEM
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Fatigue Properties of Welded Structural Steels Initiated from Long-Term Corroded Surfaces

Abstract:

Corrosion fatigue is a phenomenon in which corrosion damage is superimposed on fatigue damage and can result in a significant decrease in fatigue strength. Because corrosion fatigue cracks initiate from the bottom of corrosion pits, corrosion fatigue strength evaluation methods based on the corrosion pit shape have been proposed and put into practical use. However, corrosion fatigue strength evaluation methods have not been fully investigated for cases in which only corrosion damage precedes. Therefore, the state of the corroded surface due to corrosion damage was evaluated using the arithmetic mean waviness Wa. The arithmetic mean waviness Wa is an appropriate parameter for evaluating the degree of corrosion damage in structural steel immersed in synthetic sea water for long period.

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Periodical:

Solid State Phenomena (Volume 378)

Pages:

31-38

DOI:

https://doi.org/10.4028/p-240wEV

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Online since:

October 2025

Authors:

Noboru Konda*, Yoichi Kayamori

Keywords:

Arithmetic Mean Waviness, Corrosion Fatigue, Corrosion Pits, Structural Steel, Synthetic Sea Water

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