Abstract

The corrosion and microstructure behavior features, such as steel strand corrosion and corrosive wear of the as-prepared composite coatings and substrates were investigated. It is found that the experimental pitting depth followed a normal distribution and both the location and scale parameters increased with the corrosion degree. The fatigue test results indicated that corrosion could cause a significant decrease in the fatigue life of corroded steel wires. The substrate exhibited corrosion-accelerating wear, while the coatings exhibited wear accelerating corrosion. A method based on 3D measurements and AFGROW software was proposed to predict the remaining fatigue life of corroded steel wires. The predicted fatigue lives agreed well with the test results.

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