In situ three dimentional (3D) x-ray synchrotron tomography of corrosion fatigue in A17075 alloy

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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, Held During Materials Science and Technology 2012, MS and T 2012
Pages17-25
Number of pages9
StatePublished - Apr 9 2013
Event2nd International Symposium on Fatigue of Materials: Advances and Emergences in Understanding, Held During Materials Science and Technology 2012, MS and T 2012 - Pittsburgh, PA, United States
Duration: Oct 7 2012Oct 11 2012

Publication series

NameFatigue of Materials II: Advances and Emergences in Understanding, Held During Materials Science and Technology 2012, MS and T 2012

Other

Other2nd International Symposium on Fatigue of Materials: Advances and Emergences in Understanding, Held During Materials Science and Technology 2012, MS and T 2012
CountryUnited States
CityPittsburgh, PA
Period10/7/1210/11/12

Keywords

  • A17075
  • Bubbles
  • Corrosion products
  • EXCO
  • Fatigue crack growth
  • X-ray tomography

ASJC Scopus subject areas

  • Materials Science(all)

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  • Cite this

    Singh, S. S., Williams, J. J., Xiao, X., De Carlo, F., & Chawla, N. (2013). In situ three dimentional (3D) x-ray synchrotron tomography of corrosion fatigue in A17075 alloy. In Fatigue of Materials II: Advances and Emergences in Understanding, Held During Materials Science and Technology 2012, MS and T 2012 (pp. 17-25). (Fatigue of Materials II: Advances and Emergences in Understanding, Held During Materials Science and Technology 2012, MS and T 2012).