In the current research, the experimental investigation of the mechanical characteristics of 6061 aluminum alloy, which was subjected to Equal Channel Angular Rolling (ECAR) – A Severe Plastic Deformation Process – and artificial aging heat treatment, has been discussed. By performing the ECAR, the strength of the material increases, but the formability will be reduced. Consequently, the usage of this alloy has been limited. The artificial aging heat treatment process has been proposed after the ECAR operation, and the strength, hardness, and formability of the material have been investigated. In this regard, remarkable results were obtained. By controlling the aging time and temperature on the ECAR piece, not only the strength increased but also the ductility increased. Moreover, an artificial neural network was used to find the optimal aging time and temperature. Finally, the best aging time and temperature ranges to achieve the most desirable mechanical properties were provided using the neural network. The result show 150% increase in strength and 50% in formability by performing controlled-artificial aging heat treatment with ECAR process.
AbidMSellamiANouriH, et al. Nano-and micro-scale characterization of anodic oxide layer coating on 2017A-T4 aluminum alloy. Trans Indian Inst Met2021; 74: 1001–1014.
2.
AbidMBen AbdelaliHKchaouM, et al. Friction durability of anodized aluminum alloy 2017A under dry conditions. J Mater Eng Perform2024; 33: 1457–1471.
3.
AbidMFortesdaCruzJKchaouM, et al. Micro-and macro-scale characterization of the microstructure and scratch resistance of the 5083-anodic aluminum oxide film. Proc IMechE, Part L: J Materials: Design and Applications2023; 237(7): 1624–1637.
4.
SverdlinAlexey. Handbook of aluminum. In: TottenGEMacKenzieDS (eds) Physical metallurgy and processes, vol. 1. New York, NY: Marcel Dekker, 2003.
5.
MahmoodiMSedighiMTannerDA. Experimental study of process parameters’ effect on surface residual stress magnitudes in equal channel angular rolled aluminium alloys. Proc IMechE, Part B: J Engineering Manufacture2014; 228(12): 1592–1598.
6.
LeeJ-CSeokH-KSuhJ-Y. Microstructural evolutions of the Al strip prepared by cold rolling and continuous equal channel angular pressing. Acta Mater2002; 50(16): 4005–4019.
7.
LapovokRMcKenziePWJThomsonPF, et al. Processing and properties of ultrafine-grain aluminum alloy 5005 sheet. J Mater Sci2007; 42: 1649–1659.
8.
LapovokRTimokhinaIMcKenziePWJ, et al. Processing and properties of ultrafine-grain aluminium alloy 6111 sheet. J Mater Process Technol2008; 200(1-3): 441–450.
9.
XuSZhaoGRenX, et al. Numerical investigation of aluminum deformation behavior in three-dimensional continuous confined strip shearing process. Mater Sci Eng: A2008; 476(1-2): 281–289.
10.
MahmoodiMNaderiA. Microstructure and its relationship to mechanical properties in equal channel angular rolled Al6061 alloy sheets. Iran J Mater Form2019; 6(1): 16–23.
11.
TanCFSaidMR. Effect of hardness test on precipitation hardening aluminium alloy 6061-T6. Chiang Mai J Sci2009; 36(3): 276–286.
12.
OzturkFSismanATorosS, et al. Influence of aging treatment on mechanical properties of 6061 aluminum alloy. Mater Des2010; 31(2): 972–975.
13.
PolatAAvsarMOzturkF. Effects of the artificial-aging temperature and time on the mechanical properties and springback behavior of AA6061. Mater Technol2015; 49(4): 487–493.
14.
TsujiNIwataTSatoM, et al. Aging behavior of ultrafine grained Al–2 wt% Cu alloy severely deformed by accumulative roll bonding. Sci Technol Adv Mater2004; 5(1-2): 173.
15.
RezaeiMRToroghinejadMRAshrafizadehF. Effects of ARB and ageing processes on mechanical properties and microstructure of 6061 aluminum alloy. J Mater Process Technol2011; 211(6): 1184–1190.
16.
MorovvatiMRDarianiBM. The effect of annealing on the formability of aluminum 1200 after accumulative roll bonding. J Manuf Process2017; 30: 241–254.
17.
PazhuhanfarYEghbaliB. Effect of processing parameters on microstructure and mechanical properties of Al6061/B4C metal matrix composite fabricated by using stir casting, post-accumulative roll bonding and aging treatment. Trans Indian Inst Met2019; 72: 545.
18.
SadeghiAKozeschnikEBiglariFR. Investigation of the formability of cryogenic rolled AA6061 and its improvement using artificial aging treatment. J Manuf Mater Process2023; 7(2): 54.
19.
Nemati ChariRMollaei DarianiBFallahi ArezodarA. Numerical and experimental studies on deformation behavior of 5083 aluminum alloy strips in equal channel angular rolling. Proc IMechE, Part B: J Engineering Manufacture2018; 232(6): 1031–1043.
20.
ShafaieMKhademiMSarparastM, et al. Modified GTN parameters calibration in additive manufacturing of Ti-6Al-4 V alloy: a hybrid ANN-PSO approach. Int J Adv Manuf Technol2022; 123: 4385–4398.
21.
ShafaieMBiglariFRKeneshlouM, et al. Blank shape optimization in sheet metal processing using a hybrid fuzzy-sensitivity method. Int J Compute Integr Manuf2023; 36(4): 511–523.
22.
YadollahpourMHosseini-ToudeshkyHKarimzadehF. The use of response surface methodology in cryrolling of ultrafine grained Al6061 to improve the mechanical properties. Proc IMechE, Part L: J Materials: Design and Applications2016; 230(2): 400–417.
23.
KahlenbergRWojcikTFalkingerG, et al. On the precipitation mechanisms of β-Mg2Si during continuous heating of AA6061. Acta Mater2023; 261: 119345.
24.
ASTM International. ASTM E8/E8M-22. Standard test methods for tension testing of metallic materials. Annual Book of ASTM Standards, ASTM International, West Conshohocken, PA, 2001.
25.
ISO 12004-2:2008. Metallic materials - Sheet and strip - Determination of forming-limit curves.
26.
ASTM International. ASTM E2218. Standard test method for determining forming limit curves. Annual Book of ASTM Standards, ASTM International, West Conshohocken, PA, 2008.
27.
SafariMJoudakiJ. Effect of temperature on strength and hardness in multi-pass equal channel angular pressing (ECAP) of aluminum alloys. Trans Indian Inst Met2020; 73(3): 619–627.
28.
Fallah TaftiMHashemiRSedighiM. Forming limit curves and mechanical properties for AA6061 sheet after solution treatment and during ageing. Int J Automot Eng2022; 12(2): 3873–3880.
29.
SarparastMShafaieMDavoodiM, et al. Predictive modeling of fracture behavior in Ti6Al4V alloys manufactured by SLM process. Frattura Ed Integrità Strutturale2024; 18(68): 340–356.
30.
YadollahpourMHosseini-ToudeshkyHKarimzadehF. Effect of cryorolling and aging on fatigue behavior of ultrafine-grained Al6061. JOM2016; 68: 1446–1455.
31.
PanigrahiSKDevanandDJayaganthanR. Effect of ageing on strength and ductility of ultrafine grained al 6061 alloy. In: Materials science forum, vol. 633. Trans Tech Publications Ltd, 2010, pp.303–309.
32.
Povoden-KaradenizELangPWarczokP, et al. CALPHAD modeling of metastable phases in the Al–Mg–Si system. Calphad2013; 43: 94–104.
33.
FeufelHGödeckeTLukasHL, et al. Investigation of the Al-Mg-Si system by experiments and thermodynamic calculations. J Alloys Compd1997; 247(1-2): 31–42.
34.
HuangYCYanXYTaoQIU. Microstructure and mechanical properties of cryo-rolled AA6061 Al alloy. Trans Nonferrous Met Soc China2016; 26(1): 12–18.
