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Electrochemical corrosion behaviors of a stress-aged Al–Zn–Mg–Cu alloy

Published online by Cambridge University Press:  24 June 2016

Y.C. Lin ,
Jin-Long Zhang ,
Ming-Song Chen ,
Ying Zhou  and
Xiang Ma
Y.C. Lin*
Affiliation:
School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, Hunan Province, China; Light Alloy Research Institute, Central South University, Changsha 410083, Hunan Province, China; and State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, Hunan Province, China
Jin-Long Zhang
Affiliation:
School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, Hunan Province, China; and State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, Hunan Province, China
Ming-Song Chen
Affiliation:
School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, Hunan Province, China; and State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, Hunan Province, China
Ying Zhou
Affiliation:
School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, Hunan Province, China; and State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, Hunan Province, China
Xiang Ma
Affiliation:
SINTEF Materials and Chemistry, Blindern, 0314 Oslo, Norway
*
a) Address all correspondence to this author. e-mail: [email protected], [email protected]
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Abstract

The effects of stress-aging processing on corrosion resistance of an Al–Zn–Mg–Cu alloy were investigated. It is found that the one-stage stress-aged alloy is strongly sensitive to the electrochemical corrosion. The poor corrosion resistance of the one-stage stress-aged alloy can be attributed to fine intragranular aging precipitates and continuous distribution of grain boundary precipitates. Meanwhile, the incomplete precipitation of solute atoms results in high electrochemical activity of aluminum matrix. However, when the alloy is two-stage stress-aged, the corrosion resistance is greatly improved. Furthermore, the corrosion resistance decreases firstly and then increases with increasing the first stage stress-aging temperature. Increasing external stress can enhance the corrosion resistance of the two-stage stress-aged alloy. These phenomena are mainly related to aging precipitates within grains and along grain boundaries. The coarse and relatively low-density intragranular aging precipitates, as well as the discontinuously distributed grain boundary precipitates can enhance the corrosion resistance of the stress-aged alloy.

Keywords

aluminum alloystress-agingmicrostructurecorrosion resistanceelectrochemical impedance spectroscopycyclic polarization
Type
Articles
Information
Journal of Materials Research , Volume 31 , Issue 16 , 29 August 2016 , pp. 2493 - 2505
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Copyright
Copyright © Materials Research Society 2016 

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References

REFERENCES

Zhou, M., Lin, Y.C., Deng, J., and Jiang, Y.Q.: Hot tensile deformation behaviors and constitutive model of an Al–Zn–Mg–Cu alloy. Mater. Des. 59, 141 (2014).Google Scholar
Dursun, T. and Soutis, C.: Recent developments in advanced aircraft aluminium alloys. Mater. Des. 56, 862 (2014).Google Scholar
Lin, Y.C., Li, L.T., Xia, Y.C., and Jiang, Y.Q.: Hot deformation and processing map of a typical Al–Zn–Mg–Cu alloy. J. Alloys Compd. 550, 438 (2013).CrossRefGoogle Scholar
Jiang, J.T., Xiao, W.Q., Yang, L., Shao, W.Z., Yuan, S.J., and Zhen, L.: Ageing behavior and stress corrosion cracking resistance of a non-isothermally aged Al–Zn–Mg–Cu alloy. Mater. Sci. Eng., A 605, 167 (2014).CrossRefGoogle Scholar
Sun, Y.S., Jiang, F.L., Zhang, H., Su, J., and Yuan, W.H.: Residual stress relief in Al–Zn–Mg–Cu alloy by a new multistage interrupted artificial aging treatment. Mater. Des. 92, 281 (2016).Google Scholar
Jenab, A. and Taheri, A.K.: Experimental investigation of the hot deformation behavior of AA7075: Development and comparison of flow localization parameter and dynamic material model processing maps. Int. J. Mech. Sci. 78, 97 (2014).CrossRefGoogle Scholar
Anjabin, N., Taheri, A.K., and Kim, H.S.: Simulation and experimental analyses of dynamic strain aging of a supersaturated age hardenable aluminum alloy. Mater. Sci. Eng., A 585, 165 (2013).Google Scholar
Bolouri, A., Shahmiri, M., and Kang, C.G.: Study on the effects of the compression ratio and mushy zone heating on the thixotropic microstructure of AA 7075 aluminum alloy via SIMA process. J. Alloys Compd. 509, 402 (2011).Google Scholar
Li, H.Y., Kang, W., and Lu, X.C.: Effect of age-forming on microstructure, mechanical and corrosion properties of a novel Al–Li alloy. J. Alloys Compd. 640, 210 (2015).CrossRefGoogle Scholar
Nový, F., Janeček, M., and Král, R.: Microstructure changes in a 2618 aluminium alloy during ageing and creep. J. Alloys Compd. 487, 146 (2009).CrossRefGoogle Scholar
Berg, L.K., Gjønnes, J., Hansen, V., Li, X.Z., Knutson-Wedel, M., Waterloo, G., and Wallenberg, L.R.: GP-zones in Al–Zn–Mg alloys and their role in artificial aging. Acta Mater. 49, 3443 (2001).CrossRefGoogle Scholar
Yang, W.C., Ji, S.X., Zhang, Q., and Wang, M.P.: Investigation of mechanical and corrosion properties of an Al–Zn–Mg–Cu alloy under various ageing conditions and interface analysis of η′ precipitate. Mater. Des. 85, 752 (2015).CrossRefGoogle Scholar
Liu, Y., Jiang, D.M., and Li, W.J.: The effect of multistage ageing on microstructure and mechanical properties of 7050 alloy. J. Alloys Compd. 671, 408 (2016).Google Scholar
Marlaud, T., Deschamps, A., Bley, F., Lefebvre, W., and Baroux, B.: Evolution of precipitate microstructures during the retrogression and re-ageing heat treatment of an Al–Zn–Mg–Cu alloy. Acta Mater. 58, 4814 (2010).CrossRefGoogle Scholar
Su, R.M., Qu, Y.D., You, J.H., and Li, R.D.: Study on a new retrogression and re-aging treatment of spray formed Al–Zn–Mg–Cu alloy. J. Mater. Res. 31, 573 (2016).Google Scholar
Peng, G.S., Chen, K.H., Chen, S.Y., and Fang, H.C.: Influence of repetitious-RRA treatment on the strength and SCC resistance of Al–Zn–Mg–Cu alloy. Mater. Sci. Eng., A 528, 4014 (2011).CrossRefGoogle Scholar
Jiang, J.T., Tang, Q.J., Yang, L., Zhang, K., Yuan, S.J., and Zhen, L.: Non-isothermal ageing of an Al–8Zn–2Mg–2Cu alloy for enhanced properties. J. Mater. Process. Technol. 227, 110 (2016).CrossRefGoogle Scholar
Liu, Y., Li, W.J., and Jiang, D.M.: The effect of pre-ageing on the microstructure and properties of 7050 alloy. J. Mater. Res. 30, 3803 (2015).Google Scholar
Liu, G., Lin, Y.C., Zhang, X.C., and Jiang, Y.Q.: Effects of two-stage creep-aging on precipitates of an Al–Cu–Mg alloy. Mater. Sci. Eng., A 614, 45 (2014).CrossRefGoogle Scholar
Lin, Y.C., Xia, Y.C., Jiang, Y.Q., Zhou, H.M., and Li, L.T.: Precipitation hardening of 2024-T3 aluminum alloy during creep aging. Mater. Sci. Eng., A 565, 420 (2013).Google Scholar
Lin, Y.C., Jiang, Y.Q., Chen, X.M., Wen, D.X., and Zhou, H.M.: Effect of creep-aging on precipitates of 7075 aluminum alloy. Mater. Sci. Eng., A 588. 347 (2013).Google Scholar
Bakavos, D., Prangnell, P.B., Bès, B., Eberl, F., and Grossmann, J.G.: Microstructural interactions during stress ageing a 7475 aerospace alloy. Mater. Sci. Forum 519, 333 (2006).Google Scholar
Guo, W., Guo, J.Y., Wang, J.D., Yang, M., Li, H., Wen, X.Y., and Zhang, J.W.: Evolution of precipitate microstructure during stress aging of an Al–Zn–Mg–Cu alloy. Mater. Sci. Eng., A 634, 167 (2015).CrossRefGoogle Scholar
Lin, Y.C., Zhang, J.L., Liu, G., and Liang, Y.J.: Effects of pre-treatments on aging precipitates and corrosion resistance of a creep-aged Al–Zn–Mg–Cu alloy. Mater. Des. 83, 866 (2015).Google Scholar
Fribourg, G., Bréchet, Y., Chemin, J.L., and Deschamps, A.: Evolution of precipitate microstructure during creep of an AA7449 T7651 aluminum alloy. Metall. Mater. Trans. A 42, 3934 (2011).Google Scholar
Abodi, L.C., DeRose, J.A., Van Damme, S., Demeter, A., Suter, T., and Deconinck, J.: Modeling localized aluminum alloy corrosion in chloride solutions under non-equilibrium conditions: Steps toward understanding pitting initiation. Electrochim. Acta 63, 169 (2012).CrossRefGoogle Scholar
Burns, J.T., Kim, S., and Gangloff, R.P.: Effect of corrosion severity on fatigue evolution in Al–Zn–Mg–Cu. Corros. Sci. 52, 498 (2010).CrossRefGoogle Scholar
Liu, S.D., Chen, B., Li, C.B., Dai, Y., Deng, Y.L., and Zhang, X.M.: Mechanism of low exfoliation corrosion resistance due to slow quenching in high strength aluminium alloy. Corros. Sci. 91, 203 (2015).Google Scholar
Marlaud, T., Malki, B., Deschamps, A., and Baroux, B.: Electrochemical aspects of exfoliation corrosion of aluminium alloys: The effects of heat treatment. Corros. Sci. 53, 1394 (2011).CrossRefGoogle Scholar
Knight, S.P., Salagaras, M., Wythe, A.M., De Carlo, F., Davenport, A.J., and Trueman, A.R.: In situ x-ray tomography of intergranular corrosion of 2024 and 7050 aluminium alloys. Corros. Sci. 52, 3855 (2010).Google Scholar
Wang, D., Ni, D.R., and Ma, Z.Y.: Effect of pre-strain and two-step aging on microstructure and stress corrosion cracking of 7050 alloy. Mater. Sci. Eng., A 494, 360 (2008).CrossRefGoogle Scholar
Lin, Y.C., Jiang, Y.Q., Zhang, X.C., Deng, J., and Chen, X.M.: Effect of creep-aging processing on corrosion resistance of an Al–Zn–Mg–Cu alloy. Mater. Des. 61, 228 (2014).CrossRefGoogle Scholar
Dey, S., Gunjan, M.K., and Chattoraj, I.: Effect of temper on the distribution of pits in AA7075 alloys. Corros. Sci. 50, 2895 (2008).CrossRefGoogle Scholar
Xu, D.K., Birbilis, N., and Romesch, P.A.: The effect of pre-ageing temperature and retrogression heating rate on the strength and corrosion behavior of AA7150. Corros. Sci. 54, 17 (2012).Google Scholar
Marlaud, T., Malki, B., Henon, C., Deschamps, A., and Barous, B.: Relationship between alloy composition, microstructure and exfoliation corrosion in Al–Zn–Mg–Cu alloys. Corros. Sci. 53, 3139 (2011).CrossRefGoogle Scholar
Knight, S.P., Birbilis, N., Muddle, B.C., Trueman, A.R., and Lynch, S.P.: Correlations between intergranular stress corrosion cracking, grain-boundary microchemistry, and grain-boundary electrochemistry for Al–Zn–Mg–Cu alloys. Corros. Sci. 52, 4073 (2010).Google Scholar
Deschamps, A., Fribourg, G., Brechet, Y., Chemin, J.L., and Hutchinson, C.R.: In situ evaluation of dynamic precipitation during plastic straining of an Al–Zn–Mg–Cu alloy. Acta Mater. 60, 1905 (2012).CrossRefGoogle Scholar
Lin, Y.C., Jiang, Y.Q., Zhou, H.M., and Liu, G.: A new creep constitutive model for 7075 aluminum alloy under elevated temperatures. J. Mater. Eng. Perform. 23, 4350 (2014).Google Scholar
ASTM International: Standard test methods for conducting creep, creep-rupture, and stress-rupture tests of metallic materials (2011). Available at: http://www.astm.org/Standards/E139.htm.Google Scholar
Garcia, S.J., Markley, T.A., Mol, J.M.C., and Hughes, A.E.: Unravelling the corrosion inhibition mechanisms of bi-functional inhibitors by EIS and SEM–EDS. Corros. Sci. 69, 346 (2013).CrossRefGoogle Scholar
Lin, Y.C., Liu, G., Chen, M.S., Huang, Y.C., Chen, Z.G., Ma, X., and Li, J.: Corrosion resistance of a two-stage stress-aged Al–Cu–Mg alloy: Effects of stress-aging temperature. J. Alloys Compd. 657, 855 (2016).Google Scholar
Moreto, J.A., Marino, C.E.B., Bose Filho, W.W., Rocha, L.A., and Fernandes, J.C.S.: SVET, SKP and EIS study of the corrosion behaviour of high strength Al and Al–Li alloys used in aircraft fabrication. Corros. Sci. 84, 30 (2014).Google Scholar
Mouanga, M., Puiggali, M., and Devos, O.: EIS and LEIS investigation of aging low carbon steel with Zn–Ni coating. Electrochim. Acta 106, 82 (2013).CrossRefGoogle Scholar
Lin, Y.C., Liu, G., Chen, M.S., Zhang, J.L., Chen, Z.G., Jiang, Y.Q., and Li, J.: Corrosion resistance of a two-stage stress-aged Al–Cu–Mg alloy: Effects of external stress. J. Alloys Compd. 661, 221 (2016).CrossRefGoogle Scholar
Fadaee, H. and Javidi, M.: Investigation on the corrosion behaviour and microstructure of 2024-T3 Al alloy treated via plasma electrolytic oxidation. J. Alloys Compd. 604, 36 (2014).CrossRefGoogle Scholar
Osorio, W.R., Freitas, E.S., and Garcia, A.: EIS and potentiodynamic polarization studies on immiscible monotectic Al–In alloys. Electrochim. Acta 102, 436 (2013).Google Scholar
Yang, H.Q., Wang, Y., Tu, S.S., Li, Y.M., and Huang, Y.: A novel study on separate and combined effects of the cathodic protection and elastic stress on corrosion behaviors of the Q235B steel in 3.5% NaCl aqueous solution. Int. J. Electrochem. Sci. 11, 3238 (2016).CrossRefGoogle Scholar
Liu, L.J., Li, P.P., Zou, Y.H., Luo, K.J., Zhang, F., Zeng, R.C., and Li, S.Q.. In vitro corrosion and antibacterial performance of polysiloxane and poly(acrylic acid)/gentamicin sulfate composite coatings on AZ31 alloy. Surf. Coat. Technol. 291, 7 (2016).CrossRefGoogle Scholar
Trdan, U. and Grum, J.: Evaluation of corrosion resistance of AA6082-T651 aluminium alloy after laser shock peening by means of cyclic polarisation and ElS methods. Corros. Sci. 59, 324 (2012).Google Scholar
Chen, J.F., Frankel, G.S., Jiang, J.T., Shao, W.Z., and Zhen, L.: Effect of age-forming on corrosion properties of an Al–Zn–Mg–Cu alloy. Mater. Corros. 65, 670 (2014).Google Scholar
Wang, J., Zhang, B., Wu, B., and Ma, X.L.: Size-dependent role of S phase in pitting initiation of 2024Al alloy. Corros. Sci. 105, 183 (2016).CrossRefGoogle Scholar
Liu, X.Y., Li, M.J., Gao, F., Liang, S.X., Zhang, X.L., and Cui, H.X.: Effects of aging treatment on the intergranular corrosion behavior of Al–Cu–Mg–Ag alloy. J. Alloys Compd. 639, 263 (2015).Google Scholar
Chemin, A., Marques, D., Bisanha, L., de Jesus Motheo, A., Bose Filho, W.W., and Ruchert, C.O.F.: Influence of Al7Cu2Fe intermetallic particles on the localized corrosion of high strength aluminum alloys. Mater. Des. 53, 118 (2014).CrossRefGoogle Scholar
Andreatta, F., Terryn, H., and De Wit, J.H.W.: Corrosion behaviour of different tempers of AA7075 aluminium alloy. Electrochim. Acta 49, 2851 (2004).Google Scholar
Xu, D.K., Rometsch, P.A., and Birbilis, N.: Improved solution treatment for an as-rolled Al–Zn–Mg–Cu alloy. Part I. Characterisation of constituent particles and overheating. Mater. Sci. Eng., A 534, 234 (2012).Google Scholar