Enhanced fatigue crack propagation resistance of Al–4.1Cu–1.1Li alloy by interrupted aging
Source abstract
Abstract
The effects of the T6I6 interrupted aging on the fatigue crack propagation (FCP) behavior, mechanical properties, and microstructure of an Al-4.1Cu-1.1Li alloy were investigated. The results showed that the peak hardness, tensile strength, yield strength, and FCP resistance of the T6I6-treated alloy were considerably improved when compared to the T6-treated alloy. Higher densities of GP zones and T1 (Al2CuLi) phases and a lower density of θ′ (Al2Cu) phases were responsible for the improved mechanical properties and FCP resistance in the T6I6 sample. Additionally, the widths of the precipitate-free zones (PFZs) were reduced from 115 to 95 nm. The enhanced FCP resistance of the alloy was shown to be related to the increased size of plastic zones at the crack tip, the high number density and large size of T1 precipitates, as well as the narrow PFZ.
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Research context
OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
Show source-provided references
1. Yang Y, He GA, Liu Y, Li K, Wu WK, Huang C (2021) Quantitative contribution of T1 phase to the strength of Al-Cu-Li alloys. J Mater Sci 56:18368–1839010.1007/s10853-021-06432-w ↗
2. Zhu QQ, Lu Y, Xu XC, Hu N (2020) Influence of multi-axial compression pre-treatment on the microstructure evolution and mechanical properties of an Al–Cu–Li alloy during aging. J Mater Sci 55:7052–706510.1007/s10853-020-04494-w ↗
3. Goma FAT, Larouche D, Brochu AB, Blais C, Boselli J, Brochu M (2014) Effect of extrusion aspect ratio and test temperatures on fatigue crack growth behavior of a 2099–T83 Al–Li alloy. Int J Fatigue 59:244–25310.1016/j.ijfatigue.2013.08.013 ↗
4. Liu F, Liu ZY, Liu M, Hu YC, Chen Y, Bai S (2018) Analysis of empirical relation between microstructure, texture evolution and fatigue properties of an Al-Cu-Li alloy during different pre-deformation processes. Mater Sci Eng A 726:309–31910.1016/j.msea.2018.04.047 ↗
5. Chen DL, Chaturvedi MC, Goel N, Richards NL (1999) Fatigue crack growth behavior of X2095 Al–Li alloy. Int J Fatigue 21:1079–108610.1016/S0142-1123(99)00087-0 ↗
6. Ying PY, Liu ZY, Bai S et al (2017) Effect of artificial aging on the Cu-Mg co-clustering and mechanical behavior in a pre-strained Al-Cu-Mg alloy. Mater Sci Eng A707:412–41810.1016/j.msea.2017.09.054 ↗
7. Quan H, Alderliesten RC (2021) The relation between fatigue crack growth rate and plastic energy dissipation in 7075-T6. Eng Fract Mech 252:1–1410.1016/j.engfracmech.2021.107765 ↗
8. Macek W, Branco R, Costa JD, Pereira C (2021) Strain sequence effect on fatigue life and fracture surface topography of 7075-T651 aluminium alloy. Mech Mater 160:1–1110.1016/j.mechmat.2021.103972 ↗
9. Antunes AMBS, Baptista CARP, Barboza MJR, Carvalho ALM, Mogili NVV (2019) Effect of the interrupted aging heat treatment T6I4 on the tensile properties and fatigue resistance of AA7050 alloy. J Braz Soc Mech Sci 41:31910.1007/s40430-019-1821-9 ↗
10. Lumley RN, Polmear IJ, Morton AJ (2005) Development of mechanical properties during secondary aging in aluminium alloys. Mater Sci Technol 9:1025–103210.1179/174328405X51875 ↗
11. Xu XH, Deng YL, Chi SQ, Guo XB (2020) Effect of interrupted ageing treatment on the mechanical properties and intergranular corrosion behavior of Al-Mg-Si alloys. J Mater Res Technol 9:230–24110.1016/j.jmrt.2019.10.050 ↗
12. Wang HS, Yi DQ, Liu HQ, Wang B (2021) Microstructure and mechanical properties of interrupted aged cast Al–4.5Cu–3.5Zn–0.5 Mg alloy. Mater Lett 285:12919910.1016/j.matlet.2020.129199 ↗
13. Alexopoulos ND, Migklis E, Stylianos A, Myriounis DP (2013) Fatigue behavior of the aeronautical Al–Li (2198) aluminum alloy under constant amplitude loading. Int J Fatigue 56:95–10510.1016/j.ijfatigue.2013.07.009 ↗
14. Dorin T, Donnadieu P, Chaix JM, Lefebvre W, Geuser FD, Deschamps A (2015) Size distribution and volume fraction of T1 phase precipitates from TEM images: direct measurements and related correction. Micron 78:19–2710.1016/j.micron.2015.06.002 ↗
15. Charai A, Walther T, Alfonso C, Zahra AM, Zahra CY (2000) Coexistence of clusters, GPB zones, S’’-, S’- and S-phases in an Al–0.9% Cu–1.4% Mg alloy. Acta Mater 48:2751–276410.1016/S1359-6454(99)00422-X ↗
16. Zhang J, Wang C, Zhang Y, Deng YL (2018) Effects of creep aging upon Al-Cu-Li alloy: Strength, toughness and microstructure. J Alloy Compd 764:452–45910.1016/j.jallcom.2018.06.103 ↗
17. Chen X, Liu ZY, Lin M, Ning AL, Zeng SM (2012) Enhanced fatigue crack propagation resistance in an Al-Zn-Mg-Cu alloy by retrogression and reaging treatment. J Mater Eng Perform 21:2345–235310.1007/s11665-012-0169-4 ↗
18. Jiang B, Cao FH, Wang HS, Yi DQ, Jiang Y (2019) Effect of aging time on the microstructure evolution and mechanical property in an Al-Cu-Li alloy sheet. Mater Sci Eng A 740:157–16410.1016/j.msea.2018.10.064 ↗
19. Berg LK, Gjønnes J, Hansen V et al (2001) GP-zones in Al–Zn–Mg alloys and their role in artificial aging. Acta Mater 49:3443–345110.1016/S1359-6454(01)00251-8 ↗
20. Chen PS, Bhat BN (2002) NASA. Time-temperature-precipitation behavior in Al-Li alloy 2195. https://ntrs.nasa.gov/search.jsp?R=20020030744211548. Accessed February 2002
21. Gayle FW, Goodway M (1994) Precipitation hardening in the first aerospace aluminum alloy: the wright flyer crankcase. Science 266:1015–101710.1126/science.266.5187.1015 ↗
22. Jiang B, Wang HS, Tian Y, Yi DQ, Liu HQ, Hu Z (2020) Effects of aging time on corrosion behavior of an Al-Cu-Li alloy. Corro Sci 173:108759.10.1016/j.corsci.2020.108759 ↗
23. Li HY, Kang W, Lu XC et al (2015) Effect of age-forming on microstructure, mechanical and corrosion properties of a novel Al–Li alloy. J Alloys Compd 640:210–21810.1016/j.jallcom.2015.03.212 ↗
24. Rodgers BI, Prangnell PB (2016) Quantification of the influence of increased pre-stretching on microstructure-strength relationships in the Al-Cu-Li alloy AA2195. Acta Mater 108:55–6710.1016/j.actamat.2016.02.017 ↗
25. Zhang SF, Zeng WD, Yang WH, Shi CL, Wang HJ (2014) Ageing response of a Al–Cu–Li 2198 alloy. Mater Des 63:368–37410.1016/j.matdes.2014.04.063 ↗
26. Ning H, Li JF, Ma PC, et al (2020) Evolution of aging precipitates in an Al-Cu-Li alloy with 1.5 wt% Li concentration. Vacuum 182:1–1110.1016/j.vacuum.2020.109677 ↗
27. Dorin T, Deschamps A, Geuser FD, Sigli C (2014) Quantification and modelling of the microstructure/strength relationship by tailoring the morphological parameters of the T1 phase in an Al-Cu-Li alloy. Acta Mater 75:134–14610.1016/j.actamat.2014.04.046 ↗
28. Hall EO (1951) The deformation and ageing of mild steel: II characteristics of the Lüders deformation. Proc Phys Soc Sect B 64:742–74710.1088/0370-1301/64/9/302 ↗
29. Martin JW (1998) Precipitation Hardening, 2nd edn. Butterworth-Heinemann, Oxford
30. Gu G, Ye LY, Jiang HC, Sun DX, Zhang P, Zhang XM (2014) Effects of T9I6 thermo-mechanical process on microstructure, mechanical properties and ballistic resistance of 2519A aluminum alloy. Trans Nonferrous Met Soc China 24:2295–230010.1016/S1003-6326(14)63347-1 ↗
31. Wang XM, Shao WZ, Jiang JT, Li GA, Wang XY, Zhen L (2020) Quantitative analysis of the influences of pre-treatments on the microstructure evolution and mechanical properties during artificial ageing of an Al-Cu-Li-Mg-Ag alloy. Mater Sci Eng A 782:1-19.10.1016/j.msea.2020.139253 ↗
32. Decreus B, Deschamps A, Geuser FD et al (2013) The influence of Cu/Li ratio on precipitation in Al–Cu–Li–x alloys. Acta Mater 61:2207–221810.1016/j.actamat.2012.12.041 ↗
33. Mcclung RC (1991) Crack closure and plastic zone sizes in fatigue. Fatigue Fract Engng Mater Struct 4:455–46810.1111/j.1460-2695.1991.tb00674.x ↗
34. Li FD, Liu ZY, Wu WT et al (2016) Slip band formation in plastic deformation zone at crack tip in fatigue stage II of 2xxx aluminum alloys. Int J Fatigue 91:68–7810.1016/j.ijfatigue.2016.05.014 ↗
35. Cisko AR, Jordon JB, Avery DZ et al (2019) Characterization of fatigue behavior of Al-Li alloy 2099. Mater Charact 151:496–50510.1016/j.matchar.2019.03.026 ↗
36. De PS, Mishra RS, Baumann JA (2011) Characterization of high cycle fatigue behavior of a new generation aluminum lithium alloy. Acta Mater 59:5946–596010.1016/j.actamat.2011.06.003 ↗
37. Wu WT, Liu ZY, Bai S, Li FD, Liu M, Wang A (2017) Anisotropy in fatigue crack propagation behavior of Al-Cu-Li alloy thick plate. Mater Charact 131:440–44910.1016/j.matchar.2017.07.025 ↗
38. Zhong J, Zhong S, Zeng ZQ, Zhang HF, Luo XF (2014) Fatigue crack initiation and early propagation behavior of 2A97 Al-Li alloy. Trans Nonferrous Met Soc China 24:303–30910.1016/S1003-6326(14)63061-2 ↗
39. Blankenship CP, Hornbogen E, Starke EA (1993) Predicting slip behavior in alloys containing shearable and strong particles. Mater Sci Eng A 169:33–4110.1016/0921-5093(93)90596-7 ↗
40. Park DS, Nam SW (1995) Effect of precipitate free zones on low cycle fatigue life of Al-Zn-Mg alloy. Mater Sci Technol 11:921–92510.1179/mst.1995.11.9.921 ↗
41. Watanabe C, Monzen R, Tazaki K (2008) Effects of Al3Sc particle size and precipitate-free zones on fatigue behavior and dislocation structure of an aged Al–Mg–Sc alloy. Int J Fatigue 30:635–64110.1016/j.ijfatigue.2007.05.010 ↗
42. Zhang QY, Zhang CS, Lin J, Zhao GQ, Chen L, Zhang H (2019) Microstructure analysis and low-cycle fatigue behavior of spray-formed Al–Li alloy 2195 extruded plate. Mater Sci Eng A 742:773–78710.1016/j.msea.2018.11.053 ↗