Rare earth can simultaneously enhance mechanical properties and corrosion resistance of Al-Mg-Mn alloys. Among them, yttrium (Y) possesses the advantages of lower cost and high crust abundance. Effect of Y content (0.1, 0.2, 0.3 wt.%) on microstructure and corrosion resistance of as-cast Al-Mg-Mn alloys was examined. With increasing Y content, the number of Al3Mg2 and Al6(Fe, Mn) is gradually decreased, and the number of Y-containing precipitates is increased. After 0.3 wt.% Y addition, Al6(Fe, Mn) disappears and the Y-containing phases dominate. Galvanic corrosion is reduced since the potential difference between the α-Al and Y-containing phases is lower than that of the Al6(Fe, Mn) phase. Furthermore, after Y addition, volume fraction of Al3Mg2 is reduced, which improves intergranular corrosion resistance.
PanYLXuYZhangDI, et al.Mechanical properties, corrosion behavior and microstructure evolution of zinc and scandium co-strengthened 5xxx alloy. J Rare Earths2023; 41(11): 1819–1826.
2.
ZhangRFLiJFLiQ, et al.Analysing the degree of sensitisation in 5xxx series aluminium alloys using artificial neural networks: a tool for alloy design. Corros Sci2019; 150(15): 268–278.
3.
KotovADMochugovskiyAGMoslehAO, et al.Microstructure, superplasticity, and mechanical properties of Al-Mg-Er-Zr alloys. Mater Char2022; 186: 111825.
4.
HaoranLZeyuZDiZ, et al.Mechanical property and microstructure evolution of novel Al-Mg-Zn(-Cu) alloys under dynamic impact. Mater Sci Technol2021; 37(9): 852–862.
5.
MoradpourMKhodabakhshiFEskandariH. Microstructure-mechanical property relationship in an Al-Mg alloy processed by constrained groove pressing-cross Route. Mater Sci Technol2018; 34(8): 1003–1017.
6.
SongCRDongBXZhangSY, et al.Recent progress of Al-Mg alloys: forming and preparation process, microstructure manipulation and application. J Mater Res Technol2024; 31: 3255–3286.
7.
JiangHCYeLYZhangXM, et al.Intermetallic phase evolution of 5059 aluminum alloy during homogenization. Trans Nonferrous Met Soc China2013; 23(12): 3553–3560.
8.
JainSLimMLCHudsonJL, et al.Spreading of intergranular corrosion on the surface of sensitized Al-4.4Mg alloys: a general finding. Corros Sci2012; 59: 136–147.
9.
QiuYCYangXFChenX, et al.Sanders.Recrystallization behaviors of AlMgScZr alloys with different Al3(Sc,Zr) dispersoid distribution. Mater Char2025; 228: 115361.
10.
DengYZhangGYangZA, et al.Microstructure characteristics and mechanical properties of new aerospace Al-Mg-Mn alloys with Al3(Sc1-xZrx) or Al3(Er1-xZrx) nanoparticles. Mater Char2019; 153: 79–91.
11.
AhmedYALiuKPaulR, et al.Effects of AlMn dispersoids and Al3(Sc,Zr) precipitates on the microstructure and ambient/elevated-temperature mechanical properties of hot-rolled AA5083 alloys. Mater Sci Eng A2022; 855(10): 143950.
12.
AlgendyAYRometschPChenXG. Tailoring microstructure and mechanical properties of an AA5454 extruded aluminum alloy with Sc/Zr microalloying and processing conditions. Mater Sci Eng A2025; 948: 149318.
13.
QiuYCYangXFLiJX, et al.The influence of Sc and Zr additions on microstructure and corrosion behavior of AA5182 alloy sheet. Corros Sci2022; 199(1): 110181.
14.
GaoCYXieHHuangHF, et al.Effect of trace Sc addition on microstructure, mechanical and stress corrosion cracking properties of Al-Mg alloys fabricated by wire arc additive manufacturing (WAAM). J Alloys Compd2025; 1021(5): 179575.
15.
MochugovskiyAGAremuAFYakovtsevaOA, et al.Influence of Y and Er on the microstructure and mechanical properties of the Al-Mn-Zr-based alloys processed by mechanical alloying and hot press sintering. Mater Sci Eng A2025; 944: 148926.
16.
DingWWZhaoXYChenTL, et al.Effect of rare earth Y and Al-Ti-B master alloy on the microstructure and mechanical properties of 6063 aluminum alloy. J Alloys Compd2020; 830(25): 154685–154685.
17.
YuSRJinYZXiongW, et al.Study on microstructure and mechanical properties of ZL107 alloy added with Yttrium. J Rare Earths2013; 31(2): 198–203.
18.
WeiZFLeiYSYanH, et al.Microstructure and mechanical properties of A356 alloy with yttrium addition processed by hot extrusion. J Rare Earths2019; 37(6): 659–667.
19.
ZhangJHGuoWTBaiQW, et al.Effect of rare earth Ce and Y on microstructure and viscosity of ZL114A alloy. J Alloys Compd2024; 1004(5): 175755.
20.
DingWWSunJYWeiGL, et al.Thermal deformation behavior and microstructure evolution of AA6061 aluminum alloy with trace rare-earth Y added. J Alloys Compd2025; 1031(5): 180979.
21.
WangWYPanQLWangXD, et al.Improved heat and corrosion resistance of high electrical conductivity Al-Mg-Si alloys by multi-alloying of Ce, Sc and Y. Corros Sci2024; 226: 111695.
22.
PengJFYuanSJWangWL, et al.Achieving high strength and plasticity in a novel Al-Zn-Mg-Cu-Y-Cr alloy via thermomechanical treatment. Mater Sci Eng A2025; 941: 148623.
23.
LiJHZhangYBLiMJ, et al.Effect of combined addition of Zr, Ti and Y on microstructure and tensile properties of an Al-Zn-Mg-Cu alloy. Mater Des2022; 223: 111129.
24.
RuZWeiLLLiuM, et al.Effect of Y and Zr addition on the intergranular corrosion of Al-Mg alloy after sensitization treatment. Micron (Oxford, England: 1993). 2025; 191: 103789.
25.
HouSLZhangDDingQW, et al.Solute clustering and precipitation of Al-5.1Mg-0.15Cu-xZn alloy. Mater Sci Eng A2019; 759(24): 465–478.
26.
MengCYZhangDHuaC, et al.Mechanical properties, intergranular corrosion behavior and microstructure of Zn modified Al-Mg alloys. J Alloys Compd2014; 617(25): 925–932.
27.
JianingXYingweiSZiyuW, et al.The Synergistic Effect of β-Al3Mg2 and Al-Mn Intermetallic Particles on the Corrosion Mechanism of 5383 Al Alloy. J Alloys Compd2025: 1048.
28.
JieJCZouCMWangHW, et al.Thermal stability of Al-Mg alloys after solidification under high pressures. J Alloys Compd2014; 584(25): 507–513.
29.
YangBWGaoMQLiuY, et al.Formation mechanism of refined Al6(Mn, Fe) phase particles during continuous rheo-extrusion and its contribution to tensile properties in Al-Mg-Mn-Fe alloys. Mater Sci Eng A2023; 872(8): 144952.
30.
LiMLiuYCHanW, et al.The electrochemical Co-reduction of Mg-Al-Y alloys in the LiCl-NaCl-MgCl2-AlF3-YCl3 melts. Metall Mater Trans B2015; 46(2): 644–652.
31.
XuQGuoCYZhengZY, et al.Phase transformation and property improvement of Al-0.6Mg-0.5Si alloys by addition of rare-earth Y. Sci Eng Compos Mater2025; 32(1).
32.
KlosekVTobolaJVemiéreA, et al.Electronic structure and magnetic properties of RMnX (R = Mg, Ca, Sr, Ba, Y; X = Si, Ge) studied by KKR method. Eur Phys J B2004; 42(2): 219–230.
33.
HandelMNickelDLampkeT. Effect of different grain sizes and textures on the corrosion behaviour of aluminum alloy AA6082. Mater Sci Eng Technol2011; 42(SP7): 606–611.
34.
RalstonKDBirbilisN. Effect of grain size on corrosion: A review. Corros2010; 66(7): 075005-1–075005-13.
35.
RevillaRITerrynHGraeveID. Growth kinetics and passive behavior of the native oxide film on additively manufactured AlSi10Mg versus the conventional cast alloy. Corros Sci2022; 203(15): 110352.
36.
ZhangJYChouTHZhouYH, et al.Corrosion-resistant L12-strengthened high-entropy alloy with high strength and large ductility. Corros Sci2023; 225: 111593.
37.
FuJWChengYHWangZH, et al.Origin of the pitting corrosion in the as-rolled and annealed ferritic stainless steel in 3.5wt.% NaCl solution. Electrochim Acta2025; 520(20): 145899.
38.
WangSQianWFXieTX, et al.Effect of corrosion product on corrosion behavior of PEO coating based on its structure and semiconducting properties. Corros Sci2025; 246(15): 112727.
39.
LiXLXiaWJYanHG, et al.Enhancing the intergranular corrosion resistance of high Mg-alloyed Al-Mg alloy by Y addition. Mater Corros2020; 71(11): 1802–1811.
40.
RuZQWeiLLLiuM, et al.Effect of Y and Zr addition on the intergranular corrosion of Al-Mg alloy after sensitization treatment. Micron2025; 191: 103789.
