The trade-off between strength and corrosion resistance is an important challenge facing aluminum alloys. Here, we report the design of aluminum composite alloy combining novel corrosion resistant strain-hardening alloy and T-phase precipitation-hardened alloy prepared by hot rolling. Good metallurgical bonding is achieved due to the uniform gradient diffusion of the elements near the bonding interface. We find that the strong strain field in the diffusion layer resulted in semi-coherent precipitates compared with the single alloy. The discontinuous distribution of the grain boundary precipitates and the absence of precipitation free zone contribute to the improved corrosion resistance of the coating alloy on each side. The composite achieves 502 MPa tensile strength, 400 MPa yield strength, 10% elongation, and superior corrosion resistance, surpassing conventional aluminum alloys in overall performance.
ChenXWangBWangZ, et al.Unveiling micromechanism of Fe minor addition-induced property degradation of an Al-5.1Cu-0.65 Mg-0.8Mn (wt%) alloy. Rare Met2025; 44: 3496–3513.
2.
RahmatabadiDMohammadiBHashemiR, et al.An experimental study of fracture toughness for nano/ultrafine grained Al5052/Cu multilayered composite processed by accumulative roll bonding. J Manuf Sci Eng2018; 140. DOI: 10.1115/1.4040542
3.
KangHGKimJKHuhMY, et al.A combined texture and FEM study of strain states during roll-cladding of five-ply stainless steel/aluminum composites. Mater Sci Eng A2007; 452-453: 347–358.
4.
AmanollahiAEbrahimzadehIRaeissiM, et al.Laminated steel/aluminum composites: improvement of mechanical properties by annealing treatment. Mater Today Commun2021; 29: 102866.
5.
ArboSMWestermannIHolmedalB. Influence of stacking sequence and intermediate layer thickness in AA6082-IF steel tri-layered cold roll bonded composite sheets. Key Eng Mater2018; 767: 316–322.
6.
LiX-BZuG-YWangP. Microstructural development and its effects on mechanical properties of Al/Cu laminated composite. Trans Nonferr Metal Soc China2015; 25: 36–45..
7.
CaoXXuCLiY, et al.Effect of secondary rolling on the interfacial bonding strength and mechanical properties of Al/Mg/Al clad plates. Phil Mag Lett2022; 102: 1–9.
8.
SunHYZhangDHMaM, et al.Effect of rolling parameters on microstructure, texture, and mechanical properties of Al/Mg/Al laminated composites. J Mater Eng Perform2022; 31: 7624–7640.
9.
YuYYanPChaiT, et al.Effect of rolling on microstructure and mechanical properties of HPS Al/Mg/Al composite plates. Int J Mod Phys B2022; 36. DOI: 10.1142/S0217979222400562
10.
WuKChangHMaawadE, et al.Microstructure and mechanical properties of the Mg/Al laminated composite fabricated by accumulative roll bonding (ARB). Mat Sci Eng A2010; 527: 3073–3078.
11.
ClyneTWHullD. General introduction. In: An introduction to composite materials. 2nd ed. Cambridge: Cambridge University Press, 1996, pp.1–8.
12.
MengCZhangDCuiH, et al.Mechanical properties, intergranular corrosion behavior and microstructure of Zn modified Al–Mg alloys. J Alloys Compd2014; 617: 925–932.
13.
HouSLiuPZhangD, et al.Precipitation hardening behavior and microstructure evolution of Al–5.1 Mg–0.15Cu alloy with 3.0Zn (wt%) addition. J Mater Sci2018; 53: 3846–3861.
14.
HouSZhangDDingQ, et al.Solute clustering and precipitation of Al-5.1Mg-0.15Cu-xZn alloy. Mater Sci Eng A2019; 759: 465–478.
ÇamGKoçakM. Progress in joining of advanced materials. Int Mater Rev1998; 43: 1–44.
17.
ChenGChangXLiuG, et al.Formation of metallurgical bonding interface in aluminum-steel bimetal parts by thixotropic-core compound forging. J Mater Process Technol2020; 283: 116710.
18.
HÿtchMJSnoeckEKilaasR. Quantitative measurement of displacement and strain fields from HREM micrographs. Ultramicroscopy1998; 74: 131–146.
19.
LuoCZhouXThompsonGE, et al.Observations of intergranular corrosion in AA2024-T351: the influence of grain stored energy. Corros Sci2012; 61: 35–44.
20.
CarrollMCGoumaPIMillsMJ, et al.Effects of Zn additions on the grain boundary precipitation and corrosion of Al-5083. Scr Mater2000; 42: 335–340.
21.
ReihanianMEbrahimiRTsujiN, et al.Analysis of the mechanical properties and deformation behavior of nanostructured commercially pure Al processed by equal channel angular pressing (ECAP). Mater Sci Eng A2008; 473: 189–194.
22.
TaylorGI. The mechanism of plastic deformation of crystals. Part I.—theoretical. Proc R Soc Lond A1997; 145: 362–387.
23.
ShiJHouLZuoJ, et al.Cryogenic rolling-enhanced mechanical properties and microstructural evolution of 5052 Al-Mg alloy. Mater Sci Eng A2017; 701: 274–284.
24.
SeifollahzadehPAlizadehMAbbasiMR. Strength prediction of multi-layered copper-based composites fabricated by accumulative roll bonding. Trans Nonferr Metal Soc China2021; 31: 1729–1739.
25.
ArmstrongRWBalasubramanianN. Unified Hall-Petch description of nano-grain nickel hardness, flow stress and strain rate sensitivity measurements. AIP Adv2017; 7: 085010.
26.
LiCLMeiQSLiJY, et al.Hall-Petch relations and strengthening of Al-ZnO composites in view of grain size relative to interparticle spacing. Scr Mater2018; 153: 27–30.
27.
HansenN. Hall–Petch relation and boundary strengthening. Scr Mater2004; 51: 801–806.
28.
LloydDJCourtSA. Influence of grain size on tensile properties of Al-Mg alloys. Mater Sci Technol2003; 19: 1349–1354.
29.
RyenØHolmedalBNijsO, et al.Strengthening mechanisms in solid solution aluminum alloys. Metall Mater Trans A2006; 37: 1999–2006.
30.
HuskinsELCaoBRameshKT. Strengthening mechanisms in an Al–Mg alloy. Mater Sci Eng A2010; 527: 1292–1298.
31.
LeeB-HKimS-HParkJ-H, et al.Role of Mg in simultaneously improving the strength and ductility of Al–Mg alloys. Mater Sci Eng A2016; 657: 115–122.
32.
FernándezRGonzález-DoncelG. A unified description of solid solution creep strengthening in Al–Mg alloys. Mater Sci Eng A2012; 550: 320–324.
33.
DornJEPietrokowskyPTietzTE. The effect of alloying elements on the plastic properties of aluminum alloys. JOM1950; 2: 933–943.
34.
RatchevPVerlindenBDe SmetP, et al.Precipitation hardening of an Al–4.2wt% Mg–0.6wt% Cu alloy. Acta Mater. 1998; 46: 3523–3533.
35.
ArdellAJ. Precipitation hardening. Metall Trans A1985; 16: 2131–2165.
36.
ClausenBLorentzenTLeffersT. Self-consistent modelling of the plastic deformation of f.c.c. polycrystals and its implications for diffraction measurements of internal stresses. Acta Mater1998; 46: 3087–3098.
37.
BigotAAugerPChambrelandS, et al.Atomic scale imaging and analysis of T’ precipitates in Al-Mg-Zn alloys. Microsc Microanal Microstruct1997; 8: 103–113.
38.
DengYYinZZhaoK, et al.Effects of Sc and Zr microalloying additions and aging time at 120°C on the corrosion behaviour of an Al–Zn–Mg alloy. Corros Sci2012; 65: 288–298.
39.
ShiYPanQLiM, et al.Effect of Sc and Zr additions on corrosion behaviour of Al–Zn–Mg–Cu alloys. J Alloys Compd2014; 612: 42–50.
40.
XuXDengYPanQ, et al.Enhancing the intergranular corrosion resistance of the Al–Mg–Si alloy with low Zn content by the interrupted aging treatment. Metall Mater Trans A2021; 52: 4907–4921.
41.
ZouYLiuQJiaZ, et al.The intergranular corrosion behavior of 6000-series alloys with different Mg/Si and Cu content. Appl Surf Sci2017; 405: 489–496.
42.
XuehongXDengYShuiqingC, et al.Effect of interrupted ageing treatment on the mechanical properties and intergranular corrosion behavior of Al-Mg-Si alloys. J Mater Res Technol2020; 9: 230–241.
43.
ChenXMaXZhaoG, et al.Effects of re-solution and re-aging treatment on mechanical property, corrosion resistance and electrochemical behavior of 2196 Al-Cu-Li alloy. Mate Design2021; 204: 109662.
44.
LinYLuCWeiC, et al.Effect of aging treatment on microstructures, tensile properties and intergranular corrosion behavior of Al–Cu–Li alloy. Mater Charact2018; 141: 163–168.
45.
WangFZengYXiongB, et al.Effect of Si addition on the microstructure and mechanical properties of Al–Cu–Mg alloy. J Alloys Compd2014; 585: 474–478.
46.
QinJLiZMaM-y, et al.Diversity of intergranular corrosion and stress corrosion cracking for 5083 Al alloy with different grain sizes. Trans Nonferr Metal Soc China2022; 32: 765–777.
47.
GuoCZhangHWuZ, et al.Effects of Ag on the age hardening response and intergranular corrosion resistance of Al-Mg alloys. Mater Charact2019; 147: 84–92.
