Characterization of static, fatigue and fracture behaviour of the aluminium-lithium alloy Al-Li 2198-T851
Source abstract
Abstract
The work reports an extensive experimental campaign for the aluminium lithium alloy Al-Li 2198-T851. Static, fatigue and fatigue crack-growth behaviour was investigated through tests on laboratory specimens manufactured along the longitudinal and transversal orientation with respect to the rolling direction. Microstructure was observed through macro-graphic evaluations and a Scanning Electron Microscope (SEM). It was found that the 2198-T851 provided enhanced mechanical properties with respect to 2024-T3 for both transversal and longitudinal rolling direction. Nonetheless, a significantly different behaviour was observed for the transversal direction that provided mechanical performances from 5 to 30 % lower than those measured longitudinally.
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Research context
OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Advanced Welding Techniques Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Evolution of Al–Li base products for aerospace and space applications10.1007/s11661-012-1155-z ↗
2. Aluminium–lithium alloys10.1007/BF01132370 ↗
3. Recent development in aluminium alloys for aerospace applications10.1016/S0921-5093(99)00674-7 ↗
4. Where does the lithium go? – a study of the precipitates in the stir zone of a friction stir weld in a Li-containing 2xxx series Al alloy10.1002/adem.200900284 ↗
5. A combined approach to microstructure mapping of an Al–Li AA2199 friction stir weld10.1016/j.actamat.2011.01.040 ↗
6. Le Jolu T, Morgeneyer TF, Gourgues-Lorenzon AF. Effect of friction stir weld defects on fatigue lifetime of an Al–Cu–Li alloy (AA-2198). In: 18th European conference on fracture: fracture of materials and structures from micro to macro scale, ECF 2010; Dresden; 30 August 2010–3 September 2010.
7. Cavaliere P, Cabibbo M, Panella F, Squillace A. 2198 Al–Li plates joined by friction stir welding: mechanical and microstructural behavior. Mater Des, 2009, 30, 3622-3631.10.1016/j.matdes.2009.02.021 ↗
8. Friction stir welding of AA2198-T3 butt joints for aeronautical applications10.1007/s12289-010-0958-y ↗
9. On the critical technological issues of friction stir welding T-joints of dissimilar aluminum alloys10.1007/s11665-011-0073-3 ↗
10. Effect of joint line remnant on fatigue lifetime of friction stir welded Al–Cu–Li alloy10.1179/136217110X12813393169453 ↗
11. Characterization of high cycle fatigue behavior of a new generation aluminum lithium alloy10.1016/j.actamat.2011.06.003 ↗
12. Fatigue behavior of the aeronautical Al–Li (2198) aluminum alloy under constant amplitude loading10.1016/j.ijfatigue.2013.07.009 ↗
13. Cavaliere P, De Santis A, Panella F, Squillace A, Effect of anisotropy on fatigue properties of 2198 Al–Li plates joined by friction stir welding, Engineering Failure Analysis, 2009, 16(6), 1856-1865.10.1016/j.engfailanal.2008.09.024 ↗
14. Microstructural Characteristics of the Al Alloys: The Dissimilarities Among the 2XXX Alloys Series used in Aircraft Structures10.1007/s13632-020-00688-5 ↗
15. Fatigue fracture tests on Al-Li 2198–T851 specimens under mixed-mode conditions10.1016/j.prostr.2022.03.127 ↗
16. ASTM International, ASTM E8 / E8M-16a - Standard test methods for tension testing of metallic materials, ASTM International, West Conshohocken, (PA), USA, 2016.
17. ASTM E466-21. Standard Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials, ASTM International, West Conshohocken, (PA), USA, 2021.
18. Combined static-cyclic multi-axial crack propagation in cruciform specimens10.1016/j.ijfatigue.2019.02.029 ↗
19. Crack growth behavior of welded stiffened panel10.1016/j.proeng.2015.06.251 ↗
20. ASTM E647. Standard test method for measurement of fatigue crack growth rates. Annual Book of ASTM Standards, ASTM International, West Conshohocken, (PA), USA, 2020.
21. Anisotropic deformation and damage in aluminium 2198 T8 sheets10.1177/1056789508101916 ↗
22. Plastic flow and ductile rupture of a 2198 Al–Cu–Li aluminum alloy10.1016/j.commatsci.2010.06.029 ↗
23. Newman JC. Analyses of fatigue and fatigue-crack growth under constant- and variable-amplitude loading, Document ID: 20040086775, NASA Langley Research Center Hampton, (VA), USA, 1999.
24. on the Finite Width Corrections to the Stress Intensity Factor10.1016/0013-7944(71)90043-9 ↗
25. Benachour M, Benguediab M, Hadjoui A, Benachour N, Hadjoui F. Fatigue crack growth of different aluminum alloy 2024, 17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, 2008, 2, 1047-1052.
26. Improvement of fatigue crack growth resistance by controlled overaging in 2024–T3 aluminium alloy10.1111/ffe.12163 ↗
27. Fatigue crack growth analysis of 2024 T3 aluminium specimens under aircraft service spectra10.1046/j.1460-2695.2001.00435.x ↗
28. Uncertainty quantification in fatigue crack-growth predictions10.1007/s10704-022-00624-4 ↗
29. On the statistical nature of fatigue crack-growth through Monte Carlo simulations and experimental data10.1088/1757-899X/1214/1/012020 ↗