In Situ Three Dimentional (3D) X-Ray Synchrotron Tomography of Corrosion Fatigue in Al7075 Alloy

Sudhanshu S. Singh, Jason J. Williams, X. Xiao, F. De Carlo, Nikhilesh Chawla

Research output: Chapter in Book/Report/Conference proceedingChapter

10 Scopus citations

Abstract

X-ray synchrotron tomography was used to investigate the fatigue corrosion behavior of A17075-T651 alloys in a corrosive solution. Single edge- notch specimens machined along the L-T orientation were used for corrosion-fatigue testing, under a load ratio of R = 0.1. The evolution of reaction between the corrosive fluid and the metal was observed, as well as the formation of hydrogen bubbles. The shape of these bubble also changed significantly during the fatigue cycle. The fatigue crack growth rate was found to be significantly higher in the corrosive solution, compared to crack growth in air, for stress intensity levels between 5 and 10 MPa √m.

Original languageEnglish (US)
Title of host publicationFatigue of Materials II
Subtitle of host publicationAdvances and Emergences in Understanding
PublisherJohn Wiley and Sons
Pages17-25
Number of pages9
ISBN (Print)9781118520932
DOIs
StatePublished - Nov 6 2012

Keywords

  • Al7075
  • Bubbles
  • Corrosion products
  • EXCO
  • Fatigue crack growth
  • X-ray tomography

ASJC Scopus subject areas

  • Materials Science(all)

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    Singh, S. S., Williams, J. J., Xiao, X., De Carlo, F., & Chawla, N. (2012). In Situ Three Dimentional (3D) X-Ray Synchrotron Tomography of Corrosion Fatigue in Al7075 Alloy. In Fatigue of Materials II: Advances and Emergences in Understanding (pp. 17-25). John Wiley and Sons. https://doi.org/10.1002/9781118533383.ch2