Research progress of stress corrosion cracking (SCC) of Al-Zn-Mg alloy

doi:10.13251/j.issn.0254-6051.2020.09.003

Abstract

Abstract: In view of the fact that stress corrosion cracking has become a bottleneck problem for further application of Al-Zn-Mg alloys,the research progress in recent years is summarized in this paper for the stress corrosion cracking of Al-Zn-Mg alloys at home and abroad.The effects of main alloying elements and trace elements on the stress corrosion cracking (SCC) of the alloy are described,and the function rule of heat treatments (including high temperature pre-precipitation,single-stage aging,two-stage aging,three-stage aging and so on) on both the precipitated phase and the stress corrosion sensitivity are also analyzed.In view of the existing research problems on the stress corrosion cracking of Al-Zn-Mg alloy,the future research directions are put forward.

Key words: Al-Zn-Mg alloy, stress corrosion cracking, alloying element, heat treatment

CLC Number:

TG172.9

Liu Jingfu, Zhou Xiangchun, Qu Yingdong. Research progress of stress corrosion cracking (SCC) of Al-Zn-Mg alloy[J]. Heat Treatment of Metals, 2020, 45(9): 21-28.

References

[1] Yang X B,Chen J H,Liu J Z,et al.A high-strength AlZnMg alloy hardened by the T-phase precipitates[J].Journal of Alloys and Compounds,2014,610:69-73.
[2] 王祝堂,田荣璋.铝合金及其加工手册[M].长沙:中南大学出版社,1988:129-131.
[3] Qin Y G,Lin S C,Jin S B,et al.Strengthening Al-Zn-Mg alloys via ultra-fine lamella structures containing a high density of dislocations and clusters[J].Metals,2019,9(2):140-149.
[4] Li L X,Wang G,Liu J,et al.Flow softening behavior and microstructure evolution of Al-5Zn-2Mg aluminum alloy during dynamic recovery[J].Transactions of Nonferrous Metals Society of China,2014,24(1):42-48.
[5] Chen L,Zhao G Q,Yu J Q,et al.Constitutive analysis of homogenized 7005 aluminum alloy at evaluated temperature for extrusion process[J].Materials and Design,2015,66:129-136.
[6] Warner T.Recently-developed aluminium solutions for aerospace applications[J].Materials Science Forum,2006,38:1271-1278.
[7] James C W,Edgar A S.The golden jubilee issue-selected topics in materials science and engineering:Past,present and future[J].Acta Materialia,2003,51(19):5775-5799.
[8] Stan P L,Mark K,Rohan T B.Transgranular corrosion fatigue crack growth in age-hardened Al-Zn-Mg(-Cu)alloys[J].Corrosion Reviews,2015,33(6):304-314.
[9] Li B,Pan Q L,Huang X,et al.Microstructures and properties of Al-Zn-Mg-Mn alloy with trace amounts of Sc and Zr[J].Materials Science and Engineering A,2014,616:219-228.
[10] Liu J Z,Chen J H,Yang X B,et al.Revisiting the precipitation sequence in Al-Zn-Mg-based alloys by high-resolution transmission electron microscopy[J].Scripta Materialia,2010,63(11):1061-1064.
[11] Cabot P L,Centellas F A,Pérez E,et al.Pitting and repassivation processes of Al-Zn-Mg alloys in chloride solutions containing sulphate[J].Electrochimica Acta,1993,18:2741-2748.
[12] Zhang X Y,Song R G,Sun B.Effects of aging treatment on intergranular corrosion and stress corrosion cracking behavior of AA7003[J].Journal of Wuhan University of Technology(Materials Science),2018,33(5):1198-1204.
[13] 肖涛,林化强,叶凌英,等.腐蚀条件对Al-Zn-Mg铝合金强韧性能的影响[J].中国有色金属学报,2016,26(7):1391-1399.
Xiao Tao,Lin Huaqiang,Ye Lingying,et al.Effect of corrosion conditions on strength and toughness of Al-Zn-Mg aluminum alloys[J].The Chinese Journal of Nonferrous Metals,2016,26(7):1391-1399.
[14] 陈小明,宋仁国.7000系铝合金应力腐蚀开裂的研究进展[J].腐蚀科学与防护技术,2010,22(2):120-123.
Chen Xiaoming,Song Renguo.Progress in research on stress corrosion cracking of 7000 series aluminum alloys[J].Corrosion Science and Protection Technology,2010,22(2):120-123.
[15] 李安敏,王晖,郭长青,等.7xxx系铝合金应力腐蚀的控制[J].材料导报,2015,29(17):84-88.
Li Anmin,Wang Hui,Guo Changqing,et al.Control on stress corrosion of 7xxx aluminum alloys[J].Materials Reports,2015,29(17):84-88.
[16] Kazuyuki S,Hiroyuki T,Hiro F,et al.Hydrogen partitioning behavior and related hydrogen embrittlement in Al-Zn-Mg alloys[J].Engineering Fracture Mechanics,2019,216:106503.
[17] 刘万雷,常新龙,张有宏,等.铝合金应力腐蚀机理及研究方法[J].腐蚀科学与防护技术,2013,25(1):71-73.
Liu Wanlei,Chang Xinlong,Zhang Youhong,et al.Mechanism and research method of stress corrosion of aluminum alloy[J].Corrosion Science and Protection Technology,2013,25(1):71-73.
[18] Qi X,Sun B,Zhang X Y,et al.Effects of cathodic polarization on SCC behavior of AA7003 under various aging treatments[J].Journal of Central South University,2018,25(10):2299-2308.
[19] Yan J,Pan Q L,Zhang X K,et al.Characterization of hot deformation behavior of Al-Zn-Mg-Mn-Zr alloy during compression at elevated temperature[J].Journal of Central South University,2017,24(3):515-520.
[20] Wang S,Luo B,Bai Z,et al.Effect of Zn/Mg ratios on microstructure and stress corrosion cracking of 7005 alloy[J].Materials,2019,12(2):285-297.
[21] 李宗雄.7000系铝合金应力腐蚀行为研究[D].北京:北京化工大学,2015.
[22] 罗亚君.大规格7系铝合金铸锭均冷环缝式电磁搅拌铸造技术研究[D].北京:北京有色金属研究总院,2018.
[23] 方磊.AlZnMg合金焊接件的微观组织分析及三级热处理析出行为研究[D].长沙:湖南大学,2012.
[24] 屈华,刘伟东,张旭,等.Zn/Mg比对Al-Zn-Mg合金时效析出惯序的影响[J].稀有金属材料与工程,2018,47(6):1766-1770.
Qu Hua,Liu Weidong,Zhang Xu,et al.Effects of Zn/Mg ratio on aging-precipitation sequence of Al-Zn-Mg alloys[J].Rare Metal Materials and Engineering,2018,47(6):1766-1770.
[25] Artenis B,Kenji M,Seungwon L,et al.Microstructure evolution in a hydrogen charged and aged Al-Zn-Mg alloy[J].Materialia,2018(3):50-56.
[26] Chen S Y,Li J Y,Hu G Y,et al.Effect of Zn/Mg ratios on SCC,electrochemical corrosion properties and microstructure of Al-Zn-Mg alloy[J].Journal of Alloys and Compounds,2018,757:259-264.
[27] Liu Z,Xu X,Zhang B,et al.Effect of Mn element on microstructure and properties of 7000 series ultra high strength rolled aluminum alloy[J].Materials Research Express,2019,6(7):076562.
[28] Tomo O,Takanori O,Akio H,et al.Improvement of strength and ductility of an Al-Zn-Mg alloy by controlling grain size and precipitate microstructure with Mn and Ag addition[J].Materials Science and Engineering A,2013,580:288-293.
[29] Byeong O K,Soo W N.Investigation of growth mechanism and orientation relationship of Mn-dispersoid in an Al-Zn-Mg-Mn alloy[J].Materials Letters,1996,28(4):385-391.
[30] Liu S D,Chen J C,Chai W R,et al.Effects of combined additions of Mn and Zr on dispersoid formation and recrystallization behavior in Al-Zn-Mg alloys[J].Metallurgical and Materials Transactions A,2019,50(10):4877-4890.
[31] Godard D,Archambault P,Aeby G E,et al.Precipitation sequences during quenching of the AA 7010 alloy[J].Acta Materialia,2002,50(9):2319-2329.
[32] 刘守法,王晋鹏,李凡国.Zr添加及热处理对Al-Zn-Mg-Cu合金组织与性能的影响[J].金属热处理,2018,43(9):27-30.
Liu Shoufa,Wang Jinpeng,Li Fanguo.Effect of Zr addition and heat treatment on microstructure and mechanical properties of Al-Zn-Mg-Cu alloy[J].Heat Treatment of Metals,2018,43(9):27-30.
[33] 王凯先,尹登峰,胡婷,等.微量钪、锆对Al-Zn-Mg合金铸态组织演变的影响[J].金属热处理,2019,44(3):50-57.
Wang Kaixian,Yin Dengfeng,Hu Ting,et al.Influence of minor Sc and Zr on as-cast microstructure evolution of Al-Zn-Mg alloy[J].Heat Treatment of Metals,2019,44(3):50-57.
[34] Watanabe K,Matsuda K,Ikeno S,et al.Tem observation of precipitate structures in Al-Zn-Mg alloys with additions of Cu/Ag[J].Archives of Metallurgy and Materials,2015,60(2):977-979.
[35] Macchi C,Somoza A,Dupasquier A,et al.Secondary precipitation in Al-Zn-Mg-(Ag)alloys[J].Acta Materialia,2003,17:5151-5158.
[36] Lin L G,Liu Z Y,Liu W J,et al.Effects of Ag addition on precipitation and fatigue crack propagation behavior of a medium-strength Al-Zn-Mg alloy[J].Journal of Materials Science and Technology,2018,34(3):534-540.
[37] Gonzalez C,Genesca J,Alvarez O,et al.Solidification of chill-cast Al-Zn-Mg alloys to be used as sacrificial anodes[J].Metallurgical and Materials Transactions A,2003,34(12):2991-2997.
[38] Gong B S,Liu Z J,Wang Y L,et al.Improving the fatigue strength of A7N01 aluminum alloy by adjusting Si content[J].Materials Science and Engineering A,2018,742:15-22.
[39] Emine Acer,Emin Çad1rl1,Harun Erol,et al.Effect of heat treatment on the microstructures and mechanical properties of Al-5.5Zn-2.5Mg alloy[J].Materials Science and Engineering A,2016,662:144-156.
[40] Li B,Wang X M,Chen H,et al.Influence of heat treatment on the strength and fracture toughness of 7N01 aluminum alloy[J].Journal of Alloys and Compounds,2016,678:160-166.
[41] 聂颖.铸锭预析出处理对Al-4.3Zn-1.7Mg合金组织与性能的影响[J].稀有金属材料与工程,2018,47(4):1308-1313.
Nie Ying.Effects of ingot casting pre-precipitation treatment on the microstructure and properties of Al-4.3Zn-1.7Mg alloy[J].Rare Metal Materials and Engineering,2018,47(4):1308-1313.
[42] Huang L P,Chen K H,Li S,et al.Influence of high-temperature pre-precipitation on local corrosion behaviors of Al-Zn-Mg alloy[J].Scripta Materialia,2007,56:305-308.
[43] Li S,Chen K H,Liu H W,et al.Effect of high-temperature pre-precipitation on mechanical properties and stress corrosion cracking of Al-Zn-Mg alloys[J].Transactions of Nonferrous Metals Society of China,2003,13(3):585-589.
[44] Li H Z,Yao H Z,Liang X P,et al.Grain boundary pre-precipitation and its contribution to enhancement of corrosion resistance of Al-Zn-Mg alloy[J].Transactions of Nonferrous Metals Society of China,2016,26(10):2523-2531.
[45] 江福清,黄继武,刘赟,等.固溶-时效对新型高强高淬透性热挤压Al-Zn-Mg-Cu-Zr合金组织与性能的影响[J].金属热处理,2019,44(1):86-90.
Jiang Fuqing,Huang Jiwu,Liu Yun,et al.Effects of solution and aging on microstructure and properties of new high-strength and high-hardenability hot-extruded Al-Zn-Mg-Cu-Zr alloy[J].Heat Treatment of Metals,2019,44(1):86-90.
[46] Rout P K,Ghosh M M,Ghosh K S.Microstructural,mechanical and electrochemical behaviour of a 7017 Al-Zn-Mg alloy of different tempers[J].Materials Characterization,2015,104:49-60.
[47] Wang Y L,Song Y Y,Jiang H C,et al.Variation of nanoparticle fraction and compositions in two-stage double peaks ageing precipitation of Al-Zn-Mg alloy[J].Nanoscale Research Letters,2018,13:131-140.
[48] Chemingui M,khitouni M,Mesmacque G,et al.Effect of heat treatment on plasticity of Al-Zn-Mg alloy:Microstructure evolution and mechanical properties[J].Physics Procedia,2009,2(3):1167-1174.
[49] Ferraguta R,Somozaa A,Tolley A,et al.Precipitation kinetics in Al-Zn-Mg commercial alloys[J].Journal of Materials Processing Technology,2003,141:35-40.
[50] Wang Y L,Jiang H C,Li Z M,et al.Two-stage double peaks ageing and its effect on stress corrosion cracking susceptibility of Al-Zn-Mg alloy[J].Journal of Materials Science and Technology,2018,34(7):1250-1257.
[51] Chen S Y,Chen K H,Dong P X,et al.Effect of a novel three-step aging on strength,stress corrosion cracking and microstructure of AA7085[J].Journal of Central South University,2016,23(8):1858-1862.
[52] Chen S Y,Chen K H,Dong P X,et al.Effect of heat treatment on stress corrosion cracking,fracture toughness and strength of 7085 aluminum alloy[J].Transactions of Nonferrous Metals Society of China,2014,24(7):2320-2325.
[53] Berg L K,Gjonnes J,Hansen V,et al.GP-zones in Al-Zn-Mg alloys and their role in artificial aging[J].Acta Materialia,2001,49:3443-3451.
[54] Khalfallah A,Raho A A,Amzert S,et al.Precipitation kinetics of GP zones,metastable η′ phase and equilibrium η phase in Al-5.46wt.%Zn-1.67wt.%Mg alloy[J].Transactions of Nonferrous Metals Society of China,2019,29(2):233-241.
[55] 钱鹏伟,邓运来,张臻,等.自然时效对Al-Zn-Mg合金型材抗应力腐蚀性能的影响[J].中国有色金属学报,2017,27(8):1542-1550.
Qian Pengwei,Deng Yunlai,Zhang Zhen,et al.Effect of natural aging time on stress corrosion cracking of aluminum alloy[J].The Chinese Journal of Nonferrous Metals,2017,27(8):1542-1550.
[56] 苏睿明,曲迎东,李荣德.喷射态7075合金回归再时效中预时效的研究[J].金属学报,2014,50(7):863-870.
Su Ruiming,Qu Yingdong,Li Rongde.Pre-aging of retrogression and re-aging of spray formed 7075 alloy[J].Acta Metallurgica Sinica,2014,50(7):863-870.