Micro-alloying is thought to improve the performance of Al–Mg alloys commonly used in transport applications. The effect of Ce addition (not higher than 0.9 wt-%) on the microstructure, corrosion behavior, and mechanical properties of the Al–9.2Mg–0.7Mn alloy was systematically investigated to assess its potential use in engineering applications. Ce addition had a significant effect on pitting corrosion resistance due to its segregation in the Mn-rich phase. In particular, the pitting corrosion rate of the alloy in the sensitization state decreased substantially with Ce addition, and was approximately 48 and 53% lower than that of the alloy matrix with 0.1 and 0.3 wt.% Ce, respectively. In addition, its strength was improved through 0.3 wt.% Ce addition (providing an increase in ultimate tensile strength of approximately 30 MPa) at no expense to intergranular corrosion resistance, indicating that Ce micro-alloying could comprehensively improve the properties of Al–Mg–Mn alloys.
RalstonKDBirbiliN.Effect of grain size on corrosion: a review. Corrosion. 2010; 66: 1–13. doi: 10.5006/1.3462912
2.
ZolotorevskiyVSDobrojinskajaRICheverikinVV. Evolution of the structure and mechanical properties of sheets of the Al-4.7Mg-0.32Mn-0.21Sc-0.09Zr alloy due to deformation accumulated upon rolling. Phys Met Metall. 2017; 118: 407–414. doi: 10.1134/S0031918X17020144
3.
GuptaRKSukimanNLCavanaughMK. Metastable pitting characteristics of aluminium alloys measured using current transients during potentiostatic polarization. Electrochim Acta. 2012; 66: 245–254. doi: 10.1016/j.electacta.2012.01.090
4.
LeeBHKimSHParkJH. Role of Mg in simultaneously improving the strength and ductility of Al-Mg alloys. Mater Sci Eng A. 2016; 657: 115–122. doi: 10.1016/j.msea.2016.01.089
5.
BensaadaSBouzianeMTMohammediF.Effect of the temperature on the mechanism of the precipitation in Al-8% mass Mg alloy. Mater Lett. 2011; 65: 2829–2832. doi: 10.1016/j.matlet.2011.05.087
6.
GoswamiRSpanosGPaoPS. Microstructural evolution and stress corrosion cracking behavior of Al-5083. Mater Mater Trans A. 2011; 42: 348–355. doi: 10.1007/s11661-010-0262-y
7.
SearlesJLGoumaPIBuchheitRG.Stress corrosion cracking of sensitized AA5083 (Al-4.5Mg-1.0Mn). Mater Mater Trans A. 2001; 32: 2859–2867. doi: 10.1007/s11661-001-1036-3
8.
JonesRHBauerDrDanielsonMJ. Role of Mg in the stress corrosion cracking of an Al-Mg alloy. Metall Mater Trans A. 2001; 32: 1699–1711. doi: 10.1007/s11661-001-0148-0
9.
TuanNQPugaHBarbosaJ. Grain refinement of Al-Mg-Sc alloy by ultrasonic treatment. Met Mater Int. 2015; 21: 72–78. doi: 10.1007/s12540-015-1008-6
10.
TanLAllenTR.Effect of thermomechanical treatment on the corrosion of AA5083. Corros Sci2010; 52: 548–554. doi: 10.1016/j.corsci.2009.10.013
11.
AlilAPopovićMRadetićT. Influence of annealing temperature on the baking response and corrosion properties of an Al-4.6 wt% Mg alloy with 0.54 wt% Cu. J Alloys Compd. 2015; 625: 76–84. doi: 10.1016/j.jallcom.2014.11.063
12.
ZhangXWangZHZhouZH. Effects of magnetic field and rare earth addition on corrosion behavior of Al-3.0 wt% Mg alloy. J. Alloys Compd. 2017; 698: 241–249. doi: 10.1016/j.jallcom.2016.12.184
13.
HeoJYBaekMSEuhKJ. Microstructure, tensile and fatigue properties of Al-5 wt.% Mg alloy manufactured by twin roll strip casting. Met Mater Int. 2018; 24: 992–1001. doi: 10.1007/s12540-018-0123-6
14.
KannanKVetranoJSHamiltonCH.Effects of alloy modification and thermomechanical processing on recrystallization of Al-Mg-Mn alloys. Metall Mater Trans A. 1996; 27: 2947–2957. doi: 10.1007/BF02663844
15.
VigneshwaranSSivaprasadKNarayanasamyR. Superior strength with enhanced fracture resistance of Al-Mg-Sc alloy through two-step cryo cross rolling. Metall Mater Trans A. 2019; 50: 3265–3281. doi: 10.1007/s11661-019-05253-6
16.
TuanNQAlvesACToptanF. The effect of Sc and Yb microalloying additions and aged-hardening heat treatment on corrosion behavior of Al-Mg alloys. Mater Corros. 2016; 67: 60–71. doi: 10.1002/maco.201508404
17.
MengCYZhangDLiuPP. Microstructure characterization in a sensitized Al-Mg-Mn-Zn alloy. Rare Met. 2018; 37: 129–135. doi: 10.1007/s12598-015-0665-4
18.
MengCYZhangDLiuPP. Correlations between stress corrosion cracking, grain boundary precipitates and Zn content of Al-Mg-Zn alloys. J Alloys Compd. 2016; 655: 178–187. doi: 10.1016/j.jallcom.2015.09.159
19.
GoswamiRQadriSB.Suppression of samson phase formation in Al-Mg alloys by boron addition. Mater Lett. 2017; 200: 21–23. doi: 10.1016/j.matlet.2017.04.087
20.
WangYGuptaRKSukimanNL. Influence of alloyed Nd content on the corrosion of an Al-5Mg alloy. Corros Sci. 2013; 73: 181–187. doi: 10.1016/j.corsci.2013.03.034
21.
SukimanNLGupta1KRBuchheitRG. Influence of microalloying additions on Al-Mg alloy. Part; 1, corrosion and electrochemical response. Corros Eng Sci Techn. 2014; 49: 254–262. doi: 10.1179/1743278213Y.0000000128
22.
SukimanNLGupta1KRBuchheitRG. Influence of microalloying additions on Al-Mg alloy. Part; 2, phase analysis and sensitization behaviour. Corros Eng Sci Techn. 2014; 49: 263–268. doi: 10.1179/1743278213Y.0000000129
23.
GuptaRKZhangRDaviesCHJ. Theoretical study of the influence of microalloying on sensitization of AA5083 and moderation of sensitization of a model Al-Mg-Mn alloy via Sr additions. Corrosion. 2014; 70: 403–413. doi: 10.5006/1117
24.
ZhangPXiaWJYanHG. Mechanical properties, corrosion behavior and microstructure of Sr modified Al-9.2Mg-0.7Mn alloys. Mater Corros. 2019; 70: 1798–1807. doi: 10.1002/maco.201910893
25.
DuJDDingDYZhuangWL. Effect of Ce addition on the microstructure and properties of Al-Cu-Mn-Mg-Fe lithium battery shell alloy. Mater Charact. 2018; 142: 252–260. doi: 10.1016/j.matchar.2018.05.049
26.
WuYNZhangJFLiaoHC. Effect of homogenization temperature on microstructure and conductivity of Al-Mg-Si-Ce alloy. J Mater Eng Perform. 2016; 25: 2720–2726. doi: 10.1007/s11665-016-2121-5
27.
LiXYXiaWJYanHG. Dynamic recrystallization behaviors of high Mg alloyed Al-Mg alloy during high strain rate rolling deformation. Mater Sci Eng A. 2019; 753: 59–69. doi: 10.1016/j.msea.2019.03.028
28.
YiGDerrickATZhuY. A collector plate mechanism-based classical intergranular precipitation model for Al alloys sensitized at different temperatures. Metall Mater Trans A. 2015; 46: 5393–5406. doi: 10.1007/s11661-015-3110-2
29.
ASTM G3-13. Annual book of ASTM standards, standard practice for conventions applicable to electrochemical measurement in corrosion testing; 2013.
30.
ASTM G67-04. ASTM international West Conshohocken (PA, 2004).
31.
ZhuaXZBlakebPDouaK. Strengthening die-cast Al-Mg and Al-Mg-Mn alloys with Fe as a beneficial element. Mater Sci Eng A. 2018; 732: 240–250. doi: 10.1016/j.msea.2018.07.005
32.
ZhangXWangZHZhouZH. Effects of cerium and lanthanum on the corrosion behavior of Al-3.0 wt.% Mg alloy. J Mater Eng Perform. 2016; 25: 1122–1128. doi: 10.1007/s11665-016-1948-0
33.
CouryFGPiresELWolW. Insight into the complex ternary phase behavior in Al-Mn-Ce alloys. J Alloys Compd. 2017; 727: 460–468. doi: 10.1016/j.jallcom.2017.08.136
34.
GordilloMACernatescuIAindowTT.Phase stability in a powder-processed Al-Mn-Ce alloy. J Mater Sci. 2014; 49: 3742–3754. doi: 10.1007/s10853-014-8086-6
35.
YuanY.Localized corrosion and stress corrosion cracking of aluminum magnesium alloys. Birmingham, England: University of Birmingham; 2006.
36.
ZhuDQOoijWJV.Corrosion protection of AA 2024-T3 by bis-[3-(triethoxysilyl) propyl] tetrasulfide in neutral sodiumchloride solution. Part; 1, corrosion of AA 2024-T3. Corros Sci. 2003; 45: 2163–2175. doi: 10.1016/S0010-938X(03)00060-X
37.
LiQZZuoYZhaoJM. Corrosion behaviors of Ce− and Nd− modified anodic films on aluminum. Anti-Corros Method M. 2010; 57: 238–243. doi: 10.1108/00035591011075878
38.
SchemMSchmidtTGerwannJ. CeO2-filled sol-gel coatings for corrosion protection of AA2024-T3 aluminium alloy. Corros Sci. 2009; 51: 2304–2315. doi: 10.1016/j.corsci.2009.06.007
39.
NiuXSLiuSHLiH. Effect of Ce4+ ions on formation process of alumina anodized coating. Mater Protec. 2007; 40: 38–39.
40.
MishraAKBalasubramaniamR.Corrosion inhibition of aluminium by rare earth chlorides. Mater Chem Phy. 2007; 103: 385–393. doi: 10.1016/j.matchemphys.2007.02.079
41.
ShiYJPanQLLiMJ. Effect of Sc and Zr addition on corrosion behaviour of Al-Zn-Mg-Cu alloys. J Alloy Comp. 2014; 612: 42–50. doi: 10.1016/j.jallcom.2014.05.128
