Effect of small scale notches on the very high cycle fatigue of AISI 310 stainless steel

Muhammad Kashif Khan, Y.J. Liu, Q.Y. Wang, Y.S. Pyoun

Research output: Contribution to journalArticle

6 Citations (Scopus)
123 Downloads (Pure)

Abstract

Fatigue behaviour of AISI 310 stainless steel has been investigated up to very high cycles. The fatigue crack initiation sites were found at the surface of the material. Persistent slip bands developed at the surface of the specimens led to the crack initiation. At lower stress levels, shallow persistent slip bands were found at the surface of the specimens, and the fatigue limit was obtained. Notched specimens showed lower fatigue lives. Notched specimens with higher stress concentration factor (Kt) showed higher fatigue strength reduction factor (Kf). It was found that shallow notches of depth ~100 µm may reduce the fatigue life substantially. Publisher statement: This is the peer reviewed version of the following article: Khan, M.K. , Liu, Y.J. , Wang, Q.Y. and Pyoun, Y.S. (2015) Effect of small scale notches on the very high cycle fatigue of AISI 310 stainless steel. Fatigue & Fracture of Engineering Materials & Structures, volume 38 (3): 290–299, which has been published in final form at http://dx.doi.org/10.1111/ffe.12229. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving (http://olabout.wiley.com/WileyCDA/Section/id-820227.html#terms)"
Original languageEnglish
Pages (from-to)290–299
JournalFatigue & Fracture of Engineering Materials & Structures
Volume38
Issue number3
DOIs
Publication statusPublished - 2015

Bibliographical note

This is the peer reviewed version of the following article: Khan, M.K. , Liu, Y.J. , Wang, Q.Y. and Pyoun, Y.S. (2015) Effect of small scale notches on the very high cycle fatigue of AISI 310 stainless steel. Fatigue & Fracture of Engineering Materials & Structures, volume 38 (3): 290–299, which has been published in final form at http://dx.doi.org/10.1111/ffe.12229. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving (http://olabout.wiley.com/WileyCDA/Section/id-820227.html#terms)"

Keywords

  • crack initiation
  • PSBs
  • small scale notches
  • stress concentration
  • very high cycle fatigue

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