Notch effect on the corrosion fatigue behavior of an austenitic stainless steel

Chih Kuang Lin, Po Fu Kuo

Research output: Contribution to journalArticlepeer-review

Abstract

The objective of this study is to characterize the influence of notch effect on the high-cycle corrosion fatigue properties of AISI 347 stainless steel in various environments, namely, air, water, NaCl, NaCl plus inhibitor, and Hi2SO4 solutions. For smooth-surface and semi-circular notch specimens, the rank of fatigue strength in all of the given environments generally took the following order: air ≈ salt water plus inhibitor > deionized water > salt water > sulfuric acid solution. For V-notch specimens, the S-N curves were separated into two groups, i.e. one with air and 3.5% NaCl plus inhibitor and the other with deionized water, 3.5% NaCl and H2SO4. This was attributed to a greater effect of localized acidification occurring at the root of V-notch as compared to the smooth surface and semi-circular notch.

Original languageEnglish
Pages (from-to)995-998
Number of pages4
JournalKey Engineering Materials
Volume345-346 II
DOIs
StatePublished - 2007

Keywords

  • 347 stainless steel
  • Corrosion fatigue
  • Notch effect

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