Influence of Different Aluminum Alloys on Corrosion Behavior of Al/Mg/Al Laminated Composites
GUO He1, JIAO Jinchao1, ZHANG Jin1,2,*, WANG Xudong1, LIAN Yong1,2, FENG Bo3, FENG Xiaowei3, ZHENG Kaihong3, DING Xiaoyun1, HAN Dong1
1 Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China 2 Beijing Key Laboratory for Corrosion Erosion and Surface Technology, Beijing 100083, China 3 Institute of New Materials, Guangdong Academy of Sciences, Guangzhou 510650, China
Abstract: Magnesium alloy and aluminum alloy were hot rolled to prepare Al/Mg/Al laminated composites. Combined with hydrogen evolution test, electrochemical test and galvanic test, the corrosion behavior of 1060/AZ31/1060, 5052/AZ31/5052 and 6061/AZ31/6061 in 3.5wt% NaCl solution was tested. By analyzing the corrosion morphology, corrosion products, hydrogen evolution rate, potentiodynamic polarization curve and AC impedance spectrum, the corrosion mechanism of Al/Mg/Al laminated composites was explored. The results show that the corrosion resistance of Al/Mg/Al laminated composites surface is similar to that of aluminum alloy, and the corrosion current density is reduced by two orders of magnitude compared with that of the original magnesium alloy. The corrosion products of the cross-section of the Al/Mg/Al laminated composites are distributed densely on the magnesium side, and the corrosion behavior is mainly affected by the galvanic effect. The galvanic current of the Mg-Al galvanic couples can reach the order of 10-3 A·cm-2. The galvanic current densities and galvanic potentials of the three Mg-Al galvanic couples corresponding to the Al/Mg/Al laminated composites are similar to the theoretical fitting values of the mixed potential. Among the three Al/Mg/Al laminated composites, 5052/AZ31/5052 has the best overall corrosion resistance.
1 Shao H, He L, Lin H, et al. Energy Technology, 2018, 6(3), 445. 2 Wan D, Wang H, Ye S, et al. Journal of Alloys and Compounds, 2019, 782, 421. 3 Wu R, Yan Y, Wang G, et al. International Materials Reviews, Taylor and Francis, 2015, 60(2), 65. 4 Taub A I, Luo A A. MRS Bulletin, 2015, 40(12), 1045. 5 Chen Z H. Wrought magnesium alloy, Chemical Industry Press, China, 2005, pp.12 (in Chinese). 陈振华. 变形镁合金, 化学工业出版社, 2005, pp.12. 6 Chen X Z. Nonferrous Meaterials and Engineering, 2017, 38(2), 63 (in Chinese). 陈兴章. 有色金属材料与工程, 2017, 38(2), 63. 7 Nikbakt S, Kamarian S, Shakeri M. Composite Structures, 2018, 195, 158. 8 Zhang T, Xu H, Li Z J, et al. Chinese Journal of Engineering, 2021, 43(1), 67 (in Chinese). 张婷, 许浩, 李仲杰, 等. 工程科学学报, 2021, 43(1), 67. 9 Liu T, Song B, Huang G, et al. Journal of Magnesium and Alloys, 2022, 10(8), 2062. 10 Jafarian M, Khodabandeh A, Manafi S. Materials and Design, 2015, 65, 160. 11 Li X, Liang W, Zhao X, et al. Journal of Alloys and Compounds, 2009, 471(1), 408. 12 Lee K S, Lee Y S, Kwon Y N. Materials Science and Engineering:A, 2014, 606, 205. 13 Chen X, Zhang J, Xia D, et al. Journal of Alloys and Compounds, 2020, 826, 154094. 14 Feng B, Sun Z, Wu Y, et al. Journal of Alloys and Compounds, 2020, 842, 155676. 15 Jayaraj R K, Malarvizhi S, Balasubramanian V. Transactions of Nonferrous Metals Society of China, 2017, 27(10), 2181. 16 Mróz S, Gontarz A, Drozdowski K, et al. Archives of Civil and Mechanical Engineering, 2018, 18(2), 401. 17 Acharya M G, Shetty A N. Journal of Magnesium and Alloys, 2019, 7(1), 98. 18 Song G L. Corrosion and protection of magnesium alloy, Chemical Industry Press, China, 2006, pp.32 (in Chinese). 宋光铃. 镁合金腐蚀与防护, 化学工业出版社, 2006, pp.32. 19 Esmaily M, Svensson J E, Fajardo S, et al. Progress in Materials Science, 2017, 89, 92. 20 Fathi P, Rafieazad M, Mohseni-Sohi E, et al. Electrochimica Acta, 2021, 389, 138689. 21 Peng C, Cao G, Gu T, et al. Journal of Materials Research and Techno-logy, 2022, 19, 709. 22 Cao C N. An introduction to electrochemical impedance spectroscopy, Science Press, China, 2002, pp.136(in Chinese). 曹楚南. 电化学阻抗谱导论, 科学出版社, 2002, pp.136. 23 Curioni M. Electrochimica Acta, 2014, 120, 284. 24 Nakatsugawa I, Chino Y. Journal of the Electrochemical Society, 2020, 167(6), 061501. 25 Baek S M, Lee S Y, Kim J C, et al. Corrosion Science, 2021, 178, 108998. 26 Jiang B, Xiang Q, Atrens A, et al. Corrosion Science, 2017, 126, 374. 27 Yang Y, Scenini F, Curioni M. Electrochimica Acta, 2016, 198, 174. 28 Thomas S, Medhekar N V, Frankel G S, et al. Current Opinion in Solid State and Materials Science, 2015, 19(2), 85. 29 Graedel T E. Journal of the Electrochemical Society, 1989, 136(4), 204.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2024, Vol. 38 
