journal article·2008-09

Effect of prior corrosion on short crack behavior in 2024-T3 aluminum alloy

Kimberli Jones, Sachin R. Shinde, Paul N. Clark, David W. Hoeppner

Corrosion Science· Volume 50· Issue 9
Publisher page

Abstract

Abstract Two thicknesses of dogbone shaped 2024-T3 aluminum alloy specimens were notched and corroded prior to constant amplitude fatigue loading. The purpose of the subject research was to examine and characterize the effects of various levels of prior corrosion on the growth rate of short fatigue cracks. The specimens were notched and exposed to a corrosive environment per one of three defined protocols prior to experimentation. The notch was manually introduced at one edge of the test section of the specimen, which was later corroded to create a more natural site for crack origination. Fatigue crack nucleation was monitored and subsequent crack growth recorded, with results presented in the form of d a /d N vs. Δ K curves.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Fatigue and fracture mechanics · Aluminum Alloy Microstructure Properties · High Temperature Alloys and Creep

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (22)

Show source-provided references
1. C.L. Harmsworth, Effect of corrosion on the fatigue behavior of 2024-T4 aluminum alloy, in: ASD Technical Report 61-121, 1961, pp. 1–7.10.21236/AD0268569 ↗
2. Pitting corrosion and fatigue crack nucleation
3. Fatigue-crack initiation at corrosion pits10.1179/030716982803286403 ↗
4. Prediction of fatigue crack initiation life based on pit growth10.5006/1.3577891 ↗
5. Considerations of allowable stress of corrosion fatigue (focused on the influence of pitting)10.1111/j.1460-2695.1985.tb01198.x ↗
6. Model for prediction of fatigue lives based upon a pitting corrosion fatigue process
7. Transition criteria – from a pit to a crack10.1515/JMBM.1999.10.5-6.261 ↗
8. Pitting behavior and residual fatigue life of 2024-T3 aluminum considering loading and sheet thickness10.1515/JMBM.2002.13.2.91 ↗
9. Damage of Al 2024 alloy due to sequential exposure to fatigue, corrosion and fatigue10.1016/S0142-1123(98)00043-7 ↗
10. Predicting fatigue life of pre-corroded 2024-T3 aluminum10.1016/j.ijfatigue.2003.10.011 ↗
11. Multiple fatigue crack growth in pre-corroded 2024-T3 aluminum10.1016/j.ijfatigue.2005.06.026 ↗
12. D.W. Hoeppner, Parameters that input to application of damage tolerance concepts to critical engine components, in: Advisory Group for Aerospace Research & Development (AGARD) Conference Proceedings No. 393, North Atlantic Treaty Organization, Neuilly Sur Seine, 1985, pp. 4–1–16.
13. Fatigue-life prediction methodology using small-crack theory10.1016/S0142-1123(98)00058-9 ↗
14. Merati · 2001
15. P.N. Clark, The Transition of Corrosion Pitting to Surface Fatigue Cracks in 2024-T3 Aluminum Alloy, Ph.D. Dissertation, University of Utah, Salt Lake City, 2001.
16. Newman · 1994
17. Piascik · 2000
18. Analytical electron microscopy study of constituent particles in commercial 7075-T6 and 2024-T3 alloys10.1007/s11661-998-0240-9 ↗
19. American Society for Metals · 1984
20. On fatigue crack initiation from corrosion pits in 7075-T7351 aluminum alloy10.1016/S1359-6462(00)00434-6 ↗
21. American Society for Testing and Materials · 2003
22. Hoeppner · 2002