Pit to crack transition and corrosion fatigue lifetime reduction estimations by means of a short crack microstructural model

J.A. Balbín, V. Chaves Repiso, Nicolas O Larrosa*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

34 Citations (Scopus)

Abstract

A microstructural model is presented to assess pit-to-crack transition and corrosion fatigue strength in pitted components in different environments. The model is first validated using available experimental data in the literature for pitting corrosion fatigue strength and S-N curves for both carbon and stainless steels. The value of the method proposed and its applicability is then shown by the development of fatigue knock down factor maps to the in-air S-N curve. Finally, the influence of pit local topology on pit-to-crack transition damage tolerance and the links to the NDE methods quantitative resolution necessary to account for defect shape or acuity in structural integrity assessments are discussed.
Original languageEnglish
Article number109171
JournalCorrosion Science
Volume180
Early online date5 Dec 2020
DOIs
Publication statusPublished - 18 Dec 2020

Fingerprint

Dive into the research topics of 'Pit to crack transition and corrosion fatigue lifetime reduction estimations by means of a short crack microstructural model'. Together they form a unique fingerprint.
  • 8036 EPSRC EP/S012362/1

    Larrosa, N. O. (Principal Investigator)

    1/12/1830/11/22

    Project: Research

Cite this