Effect of actual and accelerated ageing on microstructure evolution and mechanical properties of a 2024-T351 aluminium alloy
Source abstract
Abstract
This paper presents an investigation on the effects of ageing on the microstructure and the corresponding physical and mechanical properties of a 2024 aluminium alloy used in a civil transport aircraft wing structure in order to assess the residual resistance of the end of a service life. More precisely, heat treatments are applied in order to simulate thermal ageing actually endured by the structure during service. The results of characterisation of microstructural, physical and mechanical properties are compared not only to the data obtained on a pristine alloy, but also to the results obtained on coupons of a similar alloy coming from the teardown of an A320 aircraft using the same experimental procedure. The main findings are that, during a service life, no significant modification in fatigue resistance is noticed despite of changes in the precipitation structure.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloy Microstructure Properties · Fatigue and fracture mechanics · High Temperature Alloys and Creep
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (24)
Show source-provided references
1. Effect of ageing on precipitation kinetics, tensile and work hardening behavior of Al-Cu-Mg (2024) alloy10.1016/j.msea.2017.05.090 ↗
2. Harlow G, Wei RP. Materials aging and structural reliability. In: 6th Issat international conference on reliability and quality in design, proceedings, INT SOC SCI APPL TECHNOL, Piscataway; 2000. p. 1–6.
3. May A, Belouchrani MA, Taharboucht S, Boudras A. Influence of heat treatment on the fatigue behaviour of two aluminium alloys 2024 and 2024 plated. In: Fatigue 2010, 2010. p. 1795–804.10.1016/j.proeng.2010.03.193 ↗
4. Reis DAP, Couto AA, Domingues Jr NI, Hirschmann ACO, Zepka S, Moura Neto C. Effect of artificial aging on the mechanical properties of an aerospace aluminum alloy 2024. In: Ochsner A, Murch GE, Shokuhfar A, Delgado J editors. Diffusion in solids and liquids Vii; 2012. p. 193–8.10.4028/www.scientific.net/DDF.326-328.193 ↗
5. Everett · 1975
6. Mechanical properties of aircraft materials subjected to long periods of service usage10.1115/1.2812273 ↗
7. Gruff · 1969
8. Long-time aging behaviour of the alloy Al-2024 characterized by positron annihilation spectroscopy10.12693/APhysPolA.99.441 ↗
9. Study of deterioration of the material properties during aircraft operation10.1007/s11223-006-0056-z ↗
10. Influence of frequency and exposure to a saline solution on the corrosion fatigue crack growth behavior of the aluminum alloy 202410.1016/j.ijfatigue.2009.02.033 ↗
11. Microstructure and strength modelling of Al-Cu-Mg alloys during non-isothermal treatments: Part 1 - Controlled heating and cooling10.1179/174328408X317020 ↗
12. Precipitation behaviors in Al-Cu-Mg and 2024 aluminum alloys10.1007/BF02652342 ↗
13. Coupled influence of microstructure and atmosphere environment on fatigue crack path in new generation Al alloys10.1016/j.engfracmech.2010.04.027 ↗
14. Harter JA. AFGROW users guide and technical manual (http://www.siresearch.info), Wright-Patterson Air Force Base OH 45433-7542; 2006.
15. Combined Kelvin probe force microscopy and secondary ion mass spectrometry for hydrogen detection in corroded 2024 aluminium alloy10.1016/j.electacta.2013.02.063 ↗
16. Propagation of intergranular corrosion defects in AA 2024-T351 evaluated by a decrease in mechanical resistance10.1149/2.090406jes ↗
17. Precipitation kinetics in severely plastically deformed 7075 aluminium alloy10.1016/j.actamat.2013.11.071 ↗
18. Natural aging on Al-Cu-Mg structural hardening alloys – Investigation of two historical duralumins for aeronautics10.1016/j.msea.2017.03.003 ↗
19. Effects of ageing time on the mechanical and conductivity properties for various round bar diameters of AA 2219 Al alloy10.1016/j.jestch.2016.06.003 ↗
20. Kaufman · 1999
21. On the corrosion-induced mechanical degradation for different artificial aging conditions of 2024 aluminum alloy10.1016/j.msea.2009.05.023 ↗
22. Petit J, Henaff G, Sarrazin-Baudoux C. Mechanisms and modeling of near-threshold fatigue crack propagation. Fatigue crack growth thresholds, endurance limits, and design ASTM STP 1372 1372; 2000. p. 3–30.10.1520/STP13423S ↗
23. Billy F, Hénaff G, Benoit G, Van der Veen S. Residual fatigue properties of a 2024-T351 aluminium alloy from the teardown of AIRBUS A320 wing panels after service. In: Clark G, Wang CH, Clark G, Wangs CH, editors. 11th International fatigue congress, fatigue 2014, Melbourne, Australia: Advanced Materials Research; 2014. p. 621–6.10.4028/www.scientific.net/AMR.891-892.621 ↗
24. The history, logic and uses of the equivalent initial flaw size approach to total fatigue life prediction