Effect of Shot Peening on Wear and Corrosion Behavior of Micro-arc Oxidation Coating of TC4 Alloy
REN Chao1,2, LUO Junming1,2, CHEN Yuhai3, HUANG Jun1,2, XU Jilin1,2
1 School of Materials Science and Engineering, Nanchang University of Aeronautics, Nanchang 330063, China 2 Jiangxi Provincial Engineering Research Center for Surface Technology of Aeronautical Materials, Nanchang Hangkong University, Nanchang 330063, China 3 Chengdu Aircraft Industry (Group) Co.,Ltd., Chengdu 610092, China
Abstract: The surface nanostructured film was prepared by shot peening (SP) on the surface of TC4 alloy.The ceramic layer was prepared in the electrolyte composed of NaH2PO4 and Na2SiO3 by micro-arc oxidation (MAO) constant voltage control mode, and the SP/MAO composite surface modified layer was obtained. The effects of shot peening on the microstructure, wear resistance and corrosion resistance of SP/MAO composite coatings were investigated. The results show that after shot peening, with the prolongation of shot peening time, the surface grain size of TC4 alloy decreases, while the microscopic strain and surface roughness increase gradually.The SP/MAO composite coating pretreated by shot peening for 30 min had the lowest friction coefficient and the wear rate was 71.3% lower than that of the micro-arc oxidation coating. With the prolongation of shot peening time,the corrosion potential of SP/MAO composite coating increased first and then decreased, and the corrosion current density decreased first and then increased. The SP/MAO coating had the best corrosion resistance when shot peening for 30 min.
1 Li L, Sun J K, Meng X J. Titanium Industry Progress, 2004, 21(5), 19(in Chinese). 李梁, 孙健科, 孟祥军. 钛工业进展, 2004, 21(5), 19. 2 Luan W L, Tu S D. China Mechanical Engineering, 2005, 16(15), 1405(in Chinese). 栾伟玲, 涂善东. 中国机械工程, 2005, 16(15), 1405. 3 Aliofkhazraei, Rouhaghdam S. Surface & Coatings Technology, 2010, 205(7), S41. 4 Gujba A K, Medraj M. Materials, 2014, 7(12), 7925. 5 Léo C, Jawad B, Brian M G, et al. Journal of Materials Processing Technology, 2018, 264(2), 91. 6 Unal O, Varol R. Applied Surface Science, 2014, 290(290), 40. 7 Luo J M, Chen Y H, Xu J L, et al. Surface & Coatings Technology, 2019, 164. 8 Todt J, Pitonak R, Köpf A, et al. Surface & Coatings Technology, 2014, 258(6922), 1119. 9 Ma K J, Bosta M M S A, Wu W T. Surface & Coatings Technology, 2014, 259, 318. 10 Babaei M, Dehghanian C, Vanaki M. Applied Surface Science, 2015, 357, 712. 11 Venkateswarlu K, Suresh S, Rameshbabu N, et al. Materials Science Forum, 2013, 688. 12 Xiao F, Du D F, Chen H, et al. Hot Working Technology, 2018, 47(10), 7(in Chinese). 肖峰, 杜东方, 陈辉, 等. 热加工工艺, 2018, 47(10), 7. 13 Khanna R, okubo T, Matsushita T, et al. Materials Science & Enginee-ring C-Materials for Biological Applications, 2016, 69,1229. 14 Shokouhfar M, Allahkaram S. Surface & Coatings Technology, 2017, 309, 767. 15 Arslan E, Totik Y, Demirci E E, et al. Surface & Coatings Technology, 2013, 214(15), 1. 16 Williamson G K, Hall W H. Acta Metallurgica, 1953, 1(1), 22. 17 Kumar S, Chattopadhyay K, Singh V, et al. International Journal of Surface Science and Engineering, 2017, 11(1), 23 18 Jelliti S, Richard C, Retraint D, et al. Surface & Coatings Technology, 2013, 224, 82. 19 Azar V, Hashemi B, Yazdi M R. Surface & Coatings Technology, 2010, 204, 3546. 20 Wang Y,Lei T, Guo L, g et al. Applied. Surface Science, 2006, 252, 8113. 21 Sharma S, Sangal S, Mondal K.Wear, 2013, 300, 82. 22 Khorasanian M, Dehghan A, Shariat M H, et al. Surface & Coatings Technology, 2011, 206, 1495. 23 Lijie W, Yazhe X, Hongbo W, et al, Rare Metals, 2010, 29, 604. 24 Jelliti S, Richard C, Retraint D, Surface & Coatings Technology, 2013, 224, 82. 25 Yu J K, Han E H, Lu L, et al. Journal of Materials Science, 2005, 40, 1019. 26 Jindal S, Bansal R, Singh B P, et al.Journal of Oral Implantology, 2014,40, 347. 27 Balusamy T, Kumar S, Narayanan T S N S. Corrosion Science,2010,52, 3826.