Influence of size and proximity of paint coating defects on corrosion behavior of carbon steel plates

Shigenobu Kainuma, Young Soo Jeong, Junji Kobayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

To ensure the safety of painted steel structures, it is important to evaluate the influence of the size and proximity of coating defects on corrosion behavior. In this research, accelerated exposure tests were carried out using combined corrosion cycles, which consisted of exposure to atomizing salt water, wetting, and drying with hot and warm wind. The test specimens were paint-coated steel plates with individual circular machined coating defects 1, 3, 10, and 15 mm in diameter. Multi-circular defects 1 mm in diameter were also created in the specimens. The test results indicate that the mean and maximum corrosion depths increased with increasing diameter of the single defect of the coated steel plate. When actual coated steel members are exposed to corrosive chloride environments such as those represented by the corrosion cycle testing conducted in this research, the corrosion depth for multi-circular defects 1 mm in diameter appears to be 1.5 to 2.5 times greater than that for a single-circular defect.

Original languageEnglish
Title of host publicationAdvances in Fracture and Damage Mechanics XIV
EditorsDarko Bajic, Zdenko Tonkovic, Ferri Aliabadi
PublisherTrans Tech Publications Ltd
Pages125-128
Number of pages4
ISBN (Print)9783038355410
DOIs
Publication statusPublished - Jan 1 2016
Event14th International Conference on Fracture and Damage Mechanics, FDM 2015 - Budva, Montenegro
Duration: Sep 21 2015Sep 23 2015

Publication series

NameKey Engineering Materials
Volume665
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

Other14th International Conference on Fracture and Damage Mechanics, FDM 2015
CountryMontenegro
CityBudva
Period9/21/159/23/15

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Influence of size and proximity of paint coating defects on corrosion behavior of carbon steel plates'. Together they form a unique fingerprint.

  • Cite this

    Kainuma, S., Jeong, Y. S., & Kobayashi, J. (2016). Influence of size and proximity of paint coating defects on corrosion behavior of carbon steel plates. In D. Bajic, Z. Tonkovic, & F. Aliabadi (Eds.), Advances in Fracture and Damage Mechanics XIV (pp. 125-128). (Key Engineering Materials; Vol. 665). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.665.125