Fatigue crack propagation behavior in friction stir welding of AA6063-T5: Roles of residual stress and microstructure
Source abstract
Abstract
Abstract Behavior of fatigue crack which was propagated at some representative areas in the friction stir welded (FSWed) joint of aluminum alloy 6063-T5 was studied. By extracting the T–L orientation specimens so that the loading axis on the fatigue test and the crack propagation direction were transverse and longitudinal to the welding direction, respectively, the crack propagation tests were carried out for both the as-welded and post-weld heat treated (PWHTed) FSWs at room temperature and 200 °C. The experiments showed that the fatigue crack propagation (FCP) rates were sensitive to the propagating location, the test temperature, and the PWHT condition as well. It was also found that the different FCP rates were driven by the microstructural influences in and around the welded zone. While the residual stress was remarkable in the shoulder limit areas, it had a minor effect on the FCP behavior.
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Research context
OpenAlex topics: Advanced Welding Techniques Analysis · Aluminum Alloys Composites Properties · Welding Techniques and Residual Stresses
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References (25)
Show source-provided references
1. Gene · 2002
2. Friction stir processing technology: a review10.1007/s11661-007-9459-0 ↗
3. Friction stir welding and processing10.1016/j.mser.2005.07.001 ↗
4. Macro and microscopic observations of fatigue crack growth in friction stir welded aluminum joints10.1016/j.engfracmech.2011.01.018 ↗
5. Evaluating the fatigue initiation location in friction stir welded AA2024-T3 joints10.1016/j.ijfatigue.2010.10.002 ↗
6. Fatigue crack growth resistance of gas tungsten arc, electron beam and friction stir welded joints of AA2219 aluminum alloy10.1016/j.matdes.2010.10.019 ↗
7. Friction-stir welding effect on microstructure and fatigue of aluminum alloy 7050–T745110.1007/s11661-000-0136-9 ↗
8. The role of residual stress and heat affected zone properties on fatigue crack propagation in friction stir welded 2024–T351 aluminum joints10.1016/S0142-1123(02)00038-5 ↗
9. Fatigue crack propagation behavior of friction stir welded 5083–H32 and 6061–T651 aluminum alloys10.1016/j.msea.2007.06.008 ↗
10. Fatigue crack growth in 2024–T351 friction stir welded joints: longitudinal residual stress and microstructural effects10.1016/j.ijfatigue.2008.05.004 ↗
11. Residual stress and microstructure effects on fatigue crack growth in AA2050 friction stir welds10.1016/j.ijfatigue.2007.04.016 ↗
12. Fatigue crack growth in friction stir welds of 6082–T6 and 6061–T6 aluminium alloys: a comparison10.1016/j.tafmec.2008.07.007 ↗
13. Fatigue crack growth behavior of friction stir processed aluminum alloy10.1016/j.scriptamat.2008.04.014 ↗
14. Pao PS, Fonda RW, Jones HN, Feng CR, Connolly BJ, Davenport AJ. Microstructure, fatigue crack growth, and corrosion in friction stir welded Al. vol. 5456. TMS; 2005.
15. Properties of friction-stir-welded 7075 T651 aluminum10.1007/s11661-998-0021-5 ↗
16. Distribution of tensile properties and microstructure in friction stir weld of 6063 aluminum10.1007/s11661-001-0177-8 ↗
17. Annual book of ASTM standards 2003; 03.01:615–657.
18. Standard Method for X-Ray Stress Measurement. The Society of Materials Science of Japan; 2005.
19. Donne CD, Lima E, Wegener J, Pyzalla A, Buslaps T. Proceedings of the third international symposium on friction stir welding, Kobe, Japan; September 27–28, 2001.
20. James M, Mahoney M. Proceedings of the first international symposium on friction stir welding, Thousand Oaks, CA, USA; June 14–16, 1999.
21. High temperature deformation kinetics of Al—4Mg alloy10.1016/0378-3804(86)90044-6 ↗
22. Precipitation sequence in friction stir weld of 6063 aluminum during aging10.1007/s11661-999-0223-5 ↗
23. Suresh · 1998
24. A simple crack closure model for prediction of fatigue crack growth rates under variable amplitude loading
25. Fatigue crack growth rates in an extruded aluminum alloy at various R ratios10.1016/0013-7944(83)90113-3 ↗