Effects of atmospheric corrosion on fatigue properties of a medium carbon steel

Mitsuhiro Okayasu, K. Sato, K. Okada, S. Yoshifuji, M. Mizuno

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The effects of atmospheric corrosion on fatigue properties were examined using a medium carbon steel, corroded in various atmospheres. Three different places, having various atmospheric conditions, were selected for the corrosion tests: (i) an industrial area, (ii) near the ocean, and (iii) beside a river in a hot spring region. A water and/or air electrochemical cell corroded the carbon steel to rust that had several forms, depending on the atmosphere. The form of the corrosion was distinguished visually and by spectroscopy. Strong oxidation occurred in all samples with the formation of rust. In addition, a more severe chemical reaction with chlorine was detected near the ocean although carbon was obtained in the industrial area. On the other hand, a high level of sulfur reacted with the sample near the river. Such chemical reactions gave rise to different corrosion mechanisms leading to different corrosion surfaces. A rough corrosion face with corrosion pits was obtained in two of the samples (industrial area and near the ocean), while a smooth surface was produced for the sample near the river. The change of the surface morphology clearly affected the fatigue strength, e.g., the rougher the sample surface, the lower the fatigue strength. On the basis of the corrosion system, details of the fracture and fatigue characteristics are discussed in the present work.

Original languageEnglish
Pages (from-to)306-315
Number of pages10
JournalJournal of Materials Science
Volume44
Issue number1
DOIs
Publication statusPublished - Jan 2009
Externally publishedYes

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Atmospheric corrosion
Carbon steel
Fatigue of materials
Corrosion
Rivers
Chemical reactions
Hot springs
Electrochemical cells
Chlorine
Sulfur
Surface morphology
Carbon
Spectroscopy
Oxidation
Water
Air

ASJC Scopus subject areas

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

Cite this

Effects of atmospheric corrosion on fatigue properties of a medium carbon steel. / Okayasu, Mitsuhiro; Sato, K.; Okada, K.; Yoshifuji, S.; Mizuno, M.

In: Journal of Materials Science, Vol. 44, No. 1, 01.2009, p. 306-315.

Research output: Contribution to journalArticle

Okayasu, Mitsuhiro ; Sato, K. ; Okada, K. ; Yoshifuji, S. ; Mizuno, M. / Effects of atmospheric corrosion on fatigue properties of a medium carbon steel. In: Journal of Materials Science. 2009 ; Vol. 44, No. 1. pp. 306-315.
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