The comparisons of forging-extrusion multistage hot deformation, forging and extrusion hot deformation processes on microstructure, mechanical property and impact toughness of 2014 Al alloy have been investigated. Results showed that the strength and impact toughness of the samples under forging-low extrusion multistage deformation process were significantly improved compared with that under forging deformation process due to the formation of smaller insoluble particles, finer grains and higher density of matrix precipitates. However, the strength and impact toughness of the samples under forging-extrusion multistage hot deformation process are lower than that under extrusion hot deformation process. The strengthening and fracture mechanisms with different deformation process have been discussed in detailed.
EskinDG.Decomposition of supersaturated solid solutions in Al–Cu–Mg–Si alloys. J Mater Sci. 2003; 38:279–290. doi: 10.1023/A:1021109514892
2.
LiJChenSLiFSynergy effect of Si addition and pre-straining on microstructure and properties of Al–Cu–Mg alloys with a medium Cu/Mg ratio. Mater Sci Eng A. 2019; 767. doi:10.1016/j.msea.2019.138429.
3.
WangMHuangLLiuWInfluence of cumulative strain on microstructure and mechanical properties of multi-directional forged 2A14 aluminum alloy. Mater Sci Eng A. 2016; 674:40–51. doi: 10.1016/j.msea.2016.07.072
4.
VenkatachalamPRoySRavisankarBEffect of processing routes on evolution of texture heterogeneity in 2014 aluminium alloy deformed by equal channel angular pressing (ECAP). Mater Sci Technol. 2012; 28(12):1445–1458. doi: 10.1179/1743284712Y.0000000045
5.
ZhangYYiYHuangSInvestigation of the quenching sensitivity of forged 2A14 aluminum alloy by time-temperature-tensile properties diagrams. J Alloys Compd. 2017; 728:1239–1247. doi: 10.1016/j.jallcom.2017.09.041
6.
Varma SKSalasDCorralEMicrostructural development during ageing of 2014 aluminum alloy composite. J Mater Sci. 1999; 34:1855–1863. doi: 10.1023/A:1004527729424
7.
Toth LSGu CFBeausirBGeometrically necessary dislocations favor the Taylor uniform deformation mode in ultra-fine-grained polycrystals. Acta Mater. 2016; 117:35–42. doi: 10.1016/j.actamat.2016.06.062
8.
LiFChenSChenKThe role of Si on microstructure, mechanical and local corrosion behaviors of an Al–Cu–Mg–Si alloy with high Cu/Mg ratio. J Alloys Compd. 2020. doi:10.1016/j.jallcom.2019.152977.
9.
DongYShaoWJiangJInfluence of quenching rate on microstructure and dimensional stability of Al-Cu-Mg-Si alloy. Mater Sci Technol. 2016; 32:1861–1868. doi: 10.1080/02670836.2016.1149657
10.
HuangWLiuZLinMReprecipitation behavior in Al–Cu binary alloy after severe plastic deformation-induced dissolution of θ′ particles. Mater Sci Eng A. 2012; 546:26–33. doi: 10.1016/j.msea.2012.03.010
11.
CanakciAArslanFYasarIPre-treatment process of B4C particles to improve incorporation into molten AA2014 alloy. J Mater Sci. 2007; 42(23):9536–9542. doi: 10.1007/s10853-007-1896-z
12.
HuangYRobsonJDPrangnellPBThe formation of nanograin structures and accelerated room-temperature theta precipitation in a severely deformed Al–4 wt.% Cu alloy. Acta Mater. 2010; 58:1643–1657. doi: 10.1016/j.actamat.2009.11.008
13.
MalopheyevSKulitskiyVKaibyshevRDeformation structures and strengthening mechanisms in an Al-Mg-Sc-Zr alloy. J Alloys Compd. 2017; 698:957–966. doi: 10.1016/j.jallcom.2016.12.289
14.
SabirovIMurashkinMYValievRZNanostructured aluminium alloys produced by severe plastic deformation: New horizons in development. Mater Sci Eng A. 2013; 560:1–24. doi: 10.1016/j.msea.2012.09.020
15.
YodaRShibataKMorimitsuTFormability of ultrafine-grained interstitial-free steel fabricated by accumulative roll-bonding and subsequent annealing. Scr Mater. 2011; 65:175–178. doi: 10.1016/j.scriptamat.2011.02.002
16.
TianYHuangHYuanGMicrostructure evolution and mechanical properties of quasicrystal-reinforced Mg–Zn–Gd alloy processed by cyclic extrusion and compression. J Alloys Compd. 2015; 626:42–48. doi: 10.1016/j.jallcom.2014.11.167
17.
MazilkinAAStraumalBBBorodachenkovaMVGradual softening of Al–Zn alloys during high-pressure torsion. Mater Lett. 2012; 84:63–65. doi: 10.1016/j.matlet.2012.06.026
18.
MoguchevaABabichEOvsyannikovBMicrostructural evolution in a 5024 aluminum alloy processed by ECAP with and without back pressure. Mater Sci Eng A. 2013; 560:178–192. doi: 10.1016/j.msea.2012.09.054
19.
ZhaMLiYMathiesen RHMicrostructure evolution and mechanical behavior of a binary Al–7Mg alloy processed by equal-channel angular pressing. Acta Mater. 2015; 84:42–54. doi: 10.1016/j.actamat.2014.10.025
20.
GoloborodkoA.Grain refinement in coarse-grained 7475 Al alloy during severe hot forging. Philos Mag. 2005; 85:1159–1175. doi: 10.1080/14786430412331325049
21.
Rao PNSinghDJayaganthanRMechanical properties and microstructural evolution of Al 6061 alloy processed by multidirectional forging at liquid nitrogen temperature. Mater Design. 2014; 56:97–104. doi: 10.1016/j.matdes.2013.10.045
22.
SinghDNageswara RaoP.Microstructures and impact toughness behavior of Al 5083 alloy processed by cryorolling and afterwards annealing. Int J Min Metall Mater. 2013; 20:759–769. doi: 10.1007/s12613-013-0794-4
23.
ZuikoIKaibyshevR.Deformation structures and strengthening mechanisms in an Al–Cu alloy subjected to extensive cold rolling. Mater Sci Eng A. 2017; 702:53–64. doi: 10.1016/j.msea.2017.07.001
24.
XuTWangSWangWMultimodal grain structure and tensile properties of cold-rolled titanium after short-duration annealing. Mater Charact. 2020; 160. doi: 10.1016/j.matchar.2019.110095
25.
ZhilyaevAPShakhovaIMorozovaAGrain Refinement kinetics and strengthening mechanisms in Cu-0.3Cr-0.5Zr alloy subjected to intense plastic deformation. Mater Sci Eng A. 2016; 654:131–142. doi: 10.1016/j.msea.2015.12.038
26.
KamikawaNHuangXTsujiNStrengthening mechanisms in nanostructured high-purity aluminum deformed to high strain and annealed. Acta Mater. 2009; 57:4198–4208. doi: 10.1016/j.actamat.2009.05.017
27.
WangSCStarinkMJPrecipitates and intermetallic phases in precipitation hardening Al–Cu–Mg–(Li) based alloys. Int Mater Rev. 2005; 50(5):193–215. doi: 10.1179/174328005X14357
28.
ZuikoISGazizovMRKaibyshevROEffect of thermomechanical treatment on the microstructure, phase composition, and mechanical properties of Al–Cu–Mn–Mg–Zr alloy. Phys Met Metallogr. 2016; 117:906–919. doi: 10.1134/S0031918X16090088
29.
HuTMaKToppingTPrecipitation phenomena in an ultrafine-grained Al alloy. Acta Mater. 2013; 61:2163–2178. doi: 10.1016/j.actamat.2012.12.037
30.
HutchinsonCRRingerSP.Precipitation processes in Al-Cu-Mg alloys microalloyed with Si. Metall Mater Trans A. 2000; 31:2721–2733. doi: 10.1007/BF02830331
31.
GazizovMKaibyshevREffect of pre-straining on the ageing behavior and mechanical properties of an Al–Cu–Mg–Ag alloy. Mater Sci Eng A. 2015; 625:119–130. doi: 10.1016/j.msea.2014.11.094
32.
Gazizov MRDubina AVZhemchuzhnikova DAEffect of equal-channel angular pressing and ageing on the microstructure and mechanical properties of an Al-Cu-Mg-Si alloy. Phys Met Metallogr. 2015; 116: 718–729. doi: 10.1134/S0031918X15070066
33.
GazizovMMarioaraCDFriisJ.Precipitation behavior in an Al–Cu–Mg–Si alloy during ageing. Mater Sci Eng A. 2019; 767:138369. doi:10.1016/j.msea.2019.138369.
34.
BiswasASiegelDJSeidmanDN.Compositional evolution of Q-phase precipitates in an aluminum alloy. Acta Mater. 2014; 75:322–336. doi: 10.1016/j.actamat.2014.05.001
35.
LiHZZhuZXLiangXP.Effect of T6-treatments on microstructure and mechanical properties of forged Al-4.4Cu-0.7Mg-0.6Si alloy. Trans Nonferrous Met Soc China. 2017; 27:2539–2547. doi: 10.1016/S1003-6326(17)60282-6
36.
ValievRZMurashkinMYSabirovI.A nanostructural design to produce high-strength Al alloys with enhanced electrical conductivity. Scr Mater. 2014; 76:13–16. doi: 10.1016/j.scriptamat.2013.12.002
37.
RyenØHolmedalBNijsOStrengthening mechanisms in solid solution aluminum alloys. Metall Mater Trans A. 2006; 37:1999–2006. doi: 10.1007/s11661-006-0142-7
38.
Kendig KLMiracle DB.Strengthening mechanisms of an Al-Mg-Sc-Zr alloy. Acta Mater. 2002; 50:4165–4175. doi: 10.1016/S1359-6454(02)00258-6
39.
Nie JFMuddle BC.Strengthening of an Al–Cu–Sn alloy by deformation-resistant precipitate plates. Acta Mater. 2008; 56:3490–3501. doi: 10.1016/j.actamat.2008.03.028
40.
NieJF.Effects of precipitate shape and orientation on dispersion strengthening in magnesium alloys. Scr Mater. 2003; 48(8):1009–1015. doi: 10.1016/S1359-6462(02)00497-9
41.
MalopheyevSKaibyshevR.Strengthening mechanisms in a Zr-modified 5083 alloy deformed to high strains. Mater Sci Eng A. 2015; 620:246–252. doi: 10.1016/j.msea.2014.10.030
42.
DasTKarunanithiRSinhaADeformation, decomposition and hardening behavior of nano Al7075 alloy prepared by mechanical milling and hot pressing. Adv Powder Technol. 2016; 27:1874–1877. doi: 10.1016/j.apt.2016.05.010
43.
ShanmugasundaramTHeilmaierMMurty BSOn the Hall–Petch relationship in a nanostructured Al–Cu alloy. Mater Sci Eng A. 2010; 527:7821–7825. doi: 10.1016/j.msea.2010.08.070
