Abstract
X-ray synchrotron tomography was used to investigate the fatigue corrosion behavior of Al7075-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 language | English (US) |
|---|---|
| Title of host publication | Materials Science and Technology Conference and Exhibition 2012, MS and T 2012 |
| Pages | 1430-1438 |
| Number of pages | 9 |
| State | Published - Dec 1 2012 |
| Event | Materials Science and Technology Conference and Exhibition 2012, MS and T 2012 - Pittsburgh, PA, United States Duration: Oct 7 2012 → Oct 11 2012 |
Publication series
| Name | Materials Science and Technology Conference and Exhibition 2012, MS and T 2012 |
|---|---|
| Volume | 2 |
Other
| Other | Materials Science and Technology Conference and Exhibition 2012, MS and T 2012 |
|---|---|
| Country | United States |
| City | Pittsburgh, PA |
| Period | 10/7/12 → 10/11/12 |
Keywords
- Al7075
- Bubbles
- Corrosion products
- EXCO
- Fatigue crack growth
- X-ray tomography
ASJC Scopus subject areas
- Materials Science (miscellaneous)
Fingerprint Dive into the research topics of 'In situ three dimentional (3D) X-ray synchrotron tomography of corrosion fatigue in Al7075 alloy'. Together they form a unique fingerprint.
Cite this
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 Materials Science and Technology Conference and Exhibition 2012, MS and T 2012 (pp. 1430-1438). (Materials Science and Technology Conference and Exhibition 2012, MS and T 2012; Vol. 2).