不同离子对TC4钛合金电化学腐蚀行为的协同作用机制
收稿日期: 2021-06-29
修回日期: 2021-09-07
网络出版日期: 2021-11-29
基金资助
南方海洋科学与工程广东省实验室(珠海)创新团队建设项目(311021013)
Synergistic Effect Mechanism of Different Ions on the Electrochemical Corrosion Behavior of TC4 Titanium Alloy
Received date: 2021-06-29
Revised date: 2021-09-07
Online published: 2021-11-29
Supported by
Innovation Group Project of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)(311021013)
赵平平 , 宋影伟 , 董凯辉 , 韩恩厚 . 不同离子对TC4钛合金电化学腐蚀行为的协同作用机制[J]. 金属学报, 2023 , 59(7) : 939 -946 . DOI: 10.11900/0412.1961.2021.00266
Due to the compact passive film, titanium alloys exhibit excellent corrosion resistance. However, during practical applications, the passive film is inevitably damaged by aggressive ions. Among the common ions, F- is the most harmful to the passive film because of its high complexation with Ti. However, the destructiveness of F- varies with pH. Moreover, there are inhibitory ions that reduce the aggressiveness of F-. The acceleration effects of H+ and F- as well as the inhibition effect of Fe3+ on the corrosion behavior of TC4 alloy were examined in this work using electrochemical polarization curves measurements and electrochemical impedance spectroscopy (EIS). The results reveal that whereas H+ has slight destructive effect on the passive film, F- has a considerable aggressive effect. In particular, F- and H+ work synergistically to accelerate the corrosion of the TC4 alloy. The addition of Fe3+ can somewhat reduce corrosion of the TC4 alloy. This can be attributable to the fact that the faster cathodic reduction caused by Fe3+ moves the anodic curves from active-passive region to passive region. Meanwhile, F- is consumed by forming a compound with Fe3+, which mitigates the corrosive effect of F- on passive film.
Key words： titanium alloy; electrochemical corrosion; synergistic effect; passive film; ion
| 1 | Yan M Q, Chen L Q, Yang P, et al. Effect of hot deformation parameters on the evolution of microstructure and texture of β phase in TC18 titanium alloy [J]. Acta Metall. Sin., 2021, 57: 880 |
| 颜孟奇, 陈立全, 杨 平 等. 热变形参数对TC18钛合金β相组织及织构演变规律的影响 [J]. 金属学报, 2021, 57: 880 | |
| 2 | Xu X, Liang W P, Miao Q, et al. Effect of ZrN modified layer on friction and wear properties of TA18 titanium alloy [J]. Surf. Technol., 2021, 50(5): 133 |
| 许 肖, 梁文萍, 缪 强 等. ZrN改性层对TA18钛合金摩擦磨损性能的影响 [J]. 表面技术, 2021, 50(5): 133 | |
| 3 | Dong J J, Fan J, Zhang H B, et al. Electrochemical performance of passive film pormed on Ti-Al-Nb-Zr alloy in simulated deep sea environments [J]. Acta Metall. Sin. (Engl. Lett.), 2020, 33: 595 |
| 4 | Wang Y H, Li X, Alexandrov I V, et al. Impact of equal channel angular pressing on mechanical behavior and corrosion resistance of hot-rolled Ti-2Fe-0.1B alloy [J]. Materials (Basel), 2020, 13: 5117 |
| 5 | Zhao P P, Song Y W, Dong K H, et al. Effect of passive film on the galvanic corrosion of titanium alloy Ti60 coupled to copper alloy H62 [J]. Mater. Corros., 2019, 70: 1745 |
| 6 | Hu C Y, Lo S L, Kuan W H, et al. Treatment of high fluoride-content wastewater by continuous electrocoagulation-flotation system with bipolar aluminum electrodes [J]. Sep. Purif. Technol., 2008, 60: 1 |
| 7 | Zhang C W, Fu T L, Chen H Y, et al. Research progress on crevice corrosion, plasma nitriding and surface nanocrystallization of titanium alloys [J]. Surf. Technol., 2019, 48(11): 114 |
| 张乘玮, 付天琳, 陈涵悦 等. 钛合金缝隙腐蚀、离子渗氮与表面纳米化的研究进展 [J]. 表面技术, 2019, 48(11): 114 | |
| 8 | Pang J J, Blackwood D J. Corrosion of titanium alloys in high temperature near anaerobic seawater [J]. Corros. Sci., 2016, 105: 17 |
| 9 | Amrutha M S, Fasmin F, Ramanathan S. Effect of HF concentration on anodic dissolution of titanium [J]. J. Electrochem. Soc., 2017, 164: H188 |
| 10 | Wang Z B, Hu H X, Liu C B, et al. The effect of fluoride ions on the corrosion behavior of pure titanium in 0.05 M sulfuric acid [J]. Electrochim. Acta, 2014, 135: 526 |
| 11 | Robin A, Meirelis J P. Influence of fluoride concentration and pH on corrosion behavior of titanium in artificial saliva [J]. J. Appl. Electrochem., 2007, 37: 511 |
| 12 | Noel J J. The electrochemistry of titanium corrosion [D]. Winnipeg: University of Manitoba, 2000 |
| 13 | Levy M. Anodic behavior of titanium and commercial alloys in sulfuric acid [J]. Corrosion, 1967, 23: 236 |
| 14 | Cobb J R, Uhlig H H. Resistance of titanium to sulfuric and hydrochloric acids inhibited by ferric and cupric ions [J]. J. Electrochem. Soc., 1952, 99: 13 |
| 15 | Stern M. The mechanism of passivating-type inhibitors [J]. J. Electrochem. Soc., 1958, 105: 638 |
| 16 | Liu Y, Schaller R F, Asselin E. Effect of Fe(III) and Cu(II) on the passivation of Ti-2 in acidic chloride solutions [J]. J. Electrochem. Soc., 2019, 166: C76 |
| 17 | Zhao P P, Song Y W, Shi L J, et al. Destruction of few fluorides to passive film of Ti-6Al-4V alloy under oxygen deficiency crevice conditions [J]. J. Mater. Sci., 2021, 56: 3510 |
| 18 | Zhao P P, Song Y W, Dong K H, et al. Corrosion behavior of dual-phase Ti-6Al-4V alloys: A discussion on the impact of element Fe [J]. J. Alloys Compd., 2021, 858: 157708 |
| 19 | Geng L, Qiao G Y, Gu K K. The effect of fluoride on electrochemical corrosion of the dental pure titanium before and after adhesion of Streptococcus mutans [J]. Shanghai J. Stomatol., 2016, 25: 150 |
| 耿 黎, 乔广艳, 顾凯凯. 氟对变形链球菌黏附前后纯钛表面腐蚀性能的影响 [J]. 上海口腔医学, 2016, 25: 150 | |
| 20 | Wang Z B. Study of the critical fluoride concentration for the corrosion of pure titanium and its protective measurements in desulfurized wet flue gas environment [D]. Shenyang: University of Chinese Academy of Sciences, 2017 |
| 王政彬. 脱硫湿烟气环境下纯钛腐蚀的临界氟离子浓度现象及防护措施研究 [D]. 沈阳: 中国科学院大学, 2017 | |
| 21 | Bar?o V, Mathew M T, Assun??o W, et al. Stability of cp-Ti and Ti-6Al-4V alloy for dental implants as a function of saliva pH—An electrochemical study [J]. Clin. Oral Implants Res., 2012, 23: 1055 |
| 22 | Li X F, Wu X F, Liu S W, et al. Effects of fluorine on photocatalysis [J]. Chin. J Catal., 2020, 41: 1451 |
| 23 | Huang H H. Effects of fluoride concentration and elastic tensile strain on the corrosion resistance of commercially pure titanium [J]. Biomaterials, 2002, 23: 59 |
| 24 | Yue G K, Zhao L M, Olvera O G, et al. Speciation of the H2SO4-Fe2(SO4)3-FeSO4-H2O system and development of an expression to predict the redox potential of the Fe3+/Fe2+ couple up to 150oC [J]. Hydrometallurgy, 2014, 147-148: 196 |
| 25 | Liang Y J, Che Y C. Handbook of Thermodynamics of Inogranic Substances [M]. Shenyang: Northeastern University Press, 1993: 616 |
| 梁英教, 车荫昌. 无机物热力学数据手册 [M]. 沈阳: 东北大学出版社, 1993: 616 |
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