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材料研究学报  2019, Vol. 33 Issue (8): 603-613    DOI: 10.11901/1005.3093.2018.492
  研究论文 本期目录 | 过刊浏览 |
在盐湖地区暴露48个月纯锌的腐蚀行为
张丹,王振尧()
中国科学院金属研究所 沈阳 110016
Corrosion Behavior of Zinc Exposed to Salt Lake Area for 48 Months
Dan ZHANG,Zhenyao WANG()
Institute of Metals Research, Chinese Academy of Sciences, Shenyang 110016, China
引用本文:

张丹,王振尧. 在盐湖地区暴露48个月纯锌的腐蚀行为[J]. 材料研究学报, 2019, 33(8): 603-613.
Dan ZHANG, Zhenyao WANG. Corrosion Behavior of Zinc Exposed to Salt Lake Area for 48 Months[J]. Chinese Journal of Materials Research, 2019, 33(8): 603-613.

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摘要: 

采用X射线衍射(XRD)、扫描电子显微镜(SEM)、金相显微镜和电化学阻抗等手段研究了锌在青海盐湖大气环境(富盐干旱型大气环境)中的腐蚀行为。结果表明,在青海盐湖大气环境中锌的腐蚀规律遵循经验公式m=Atn。锌的向地面比向天面腐蚀严重,向天面暴晒48个月出现锈层脱落现象。两个表面的腐蚀产物均由Zn5(OH)8Cl2·H2O,Zn5(CO)3(OH)6和Zn4SO4(OH)6·3H2O组成,锈层均富含SiO2。电化学结果表明,随着暴晒时间的延长向地面的极化电阻Rp逐渐增大,而向天面的Rp逐渐增加,而暴晒48个月时减小。锈层有抑制基体腐蚀的作用,对两个表面锈层的保护性随暴晒时间的延长而增大,而向天面暴晒48个月时保护性减弱。

关键词 材料失效与保护青海盐湖大气腐蚀锈层分析EIS    
Abstract

Corrosion behavior of zinc was field exposed to salt-rich arid atmosphere at Qinghai salt lake of Qinghai province at the Northwest China for 48 months was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), metalloscopy and EIS techniques.Results reveal that the corrosion kinetics of zinc in the atmosphere at a selected site followed the empirical equation m=Atn. The corrosion of zinc on the skyward surface is heavier than that on the fieldward one, while spallation of the rust layer on the skyward surface did occur after exposure for 48 months. The corrosion products on the two surfaces were mainly composed of Zn5(OH)8Cl2·H2O, Zn5(CO)3(OH)6, Zn4SO4(OH)6·3H2O, the rust layer contained also certain amount of SiO2. The results of EIS analysis showed that the rust layer could suppress the corrosion of zinc substrate, the corrosion resistance of rust layers on the two surfaces increased with time, then the protectiveness of the rust layer on the skyward surface was weakened for 48 months exposure.

Key wordsmaterials failure and proterction    zinc    Qinghai salt lake    atmospheric corrosion    the skyward surfaces    EIS
收稿日期: 2018-08-13     
ZTFLH:  TG172.3  
基金资助:国家自然科学基金(No. 51671197);国家自然科学基金(No. 51601199);广州市产学研协同创基金项目:新联盟专项(No. 201604046014)
作者简介: 张 丹,女,1990年生,硕士
图1  纯Zn的腐蚀失重曲线
图2  暴晒不同时间后纯Zn的宏观形貌图
图3  暴晒不同时间后纯Zn的表面形貌
图4  暴晒不同时间后 Zn 的 XRD 谱
图5  暴晒不同时间后纯锌的截面形貌图
Position No.Mole fraction/%
COMgNaSAlSiClKCaZn
114.79.72.403.9006.70.90.960.8
2036.106.5015.936.8004.70
37.311.31.403.7004.20072.1
46.914.63.3001.15.39.80.7058.3
5021.65.4000.61.8141.3055.3
表1  图5中腐蚀产物层不同位置处元素的EDS分析结果
图6  暴晒不同时间后去除腐蚀产物后Zn的形貌
图7  腐蚀不同时间后锌的Nyquist图
图8  腐蚀不同时间后锌的Bode图
图9  锌的腐蚀等效拟合电路
CorrosionThe skyward oneThe field-ward one
time/month61224486122448
Rs/Ω·cm217.182.7521.2834.2816.5230.8432.1128.24
Q1/(Ω·cm2·Sn)-13.444×10-51.052×10-41.929×10-43.743×10-59.311×10-57.300×10-58.348×10-51.497×10-4
n10.5570.3510.4440.4950.4250.5020.5520.453
Rr/Ω·cm231710991044608.6541708.215922379
Q2/(Ω·cm2·Sn)-18.283×10-41.163×10-32.095×10-20.1936.685×10-43.72×10-31.6810-21.806×10-2
n20.4840.6370.7790.6090.6620.4710.8690.926
Rt/Ω·cm2786.3572.3320.1432549.8761.4620431.8
表2  拟合所得锌的电化学阻抗谱参数
图10  电化学阻抗谱参数Rp随暴晒时间的变化
图11  在青海盐湖大气暴晒期间Zn的腐蚀过程示意图[31]
[1] Cole I S, Paterson, D A, Ganther W D. Holistic model for atmospheric corrosion. Part I. Theoretical framework for production,transportation and deposition of marine salts [J]. Corr. Eng. Sci,Technol, 2003, 38: 129
[2] Lindstrom R, Svensson J E, Johansson L G, The atmospheric corrosion of zinc in the presence of NaCl-the influence of carbon dioxide and temperature [J]. J. Electrochem. Soc, 2000, 147: 1751
[3] Svensson J E, Johansson L G. A laboratory study of the initial stages of the atmospheric corrosion of zinc in the presence of NaCl; influence of SO2 and NO2 [J]. Corros. Sci, 1993, 34: 721
[4] Aske Y A, Lyon S B, Thompson G E, et al. The effect of fly-ash particulates on the atmospheric corrosion of zinc and mild-steel [J]. Corros. Sci, 1993, 34: 1055
[5] Wang Z Y, Yu G C, Han W. Atmospheric corrosion performance of zinc at several selected sits in china [J]. Corrosion Science and Protection Technology, 2003, 4: 1911
[5] 王振尧, 于国才, 韩 薇. 我国典型大气环境中的锌腐蚀 [J]. 腐蚀科学与防护技术, 2003, 4: 1911
[6] Perssona D, Thierryb D, Karlsson O. Corrosion and corrosion products of hot dipped galvanized steel during long term atmospheric exposure at different sites world-wide [J]. Corros. Sci,2017, 126: 152
[7] Shu D X, Yang X R, Liu Y. Study of Zn corrosion in tropic marine atmosphere [J]. Equipment Environment Engineering,2003, 4: 45
[7] 舒德学, 杨晓然, 罗 勇. 纯锌在热带海洋环境下的大气腐蚀行为及规律 [J]. 装备环境工程, 2003, 4: 45
[8] Lindstrom R, Svensson J E, Johansson L G.The influence of salt deposits on the atmospheric corrosion of zinc, the important role of the sodiumion [J]. J. Electrochem. Soc, 2002, 149: 57
[9] Chen Z Y, Persson D, Leygraf C. Initial NaCl-particle induced atmospheric corrosion of zinc-effect of CO2 and SO2 [J]. Corros. Sci, 2008, 50: 111
[10] Lindstrom R, Svensson J E, Johansson L G. The atmospheric corrosion of zinc in the presence of NaCl-the influence of carbon dioxide and temperature, J. Electrochem [J]. Soc,2000, 147: 1751
[11] Liu A Q, Xiao K, Li X G, et al. Comparison of corrosion behavior of pure Zn and Zn-Al alloy coating in serious Xisha marine atmosphere environment [J]. Thermal Spray Technology, 2005, 4: 46
[11] 刘安强, 肖 葵, 李晓刚等. Zn和ZnAl合金涂层在西沙严酷海洋大气环境下的腐蚀行为的比较 [J]. 热喷涂技术, 2005, 4: 46
[12] Liu Y W, Wang Z Y,Cao G W, et al. Study on corrosion behavior of zinc exposed in coastal-industrial atmospheric environment [J]. Materials Chemistry and Physics, 2017, 198: 243
[13] Azmat N S, Ralston K D, Muddle B C, et al. Corrosion of Zn under acidified marine droplets [J]. Corro. Sci, 2011, 53: 1604
[14] Vera R, Rosales B M, Tapia C. Effect of the exposure angle in the corrosion rate of plain carbon steel in a marine atmosphere [J]. Corros. Sci, 2003, 45: 321
[15] Wang Z Y, Li Q X, Wang C, et al. Corrosion behavior of Al alloy LC4 in geermu salt lake atmosphere [J]. The Chinese Journal of Nonferrous Metals, 2007, 17: 24
[15] 王振尧, 李巧霞, 汪 川等. LC4铝合金在格尔木盐湖大气环境中的腐蚀行为 [J]. 中国有色金属学报, 2007, 17: 24
[16] Wang B B, Wang Z Y, Cao G W, et al. Localized corrosion of Aluminum alloy 2024 exposed to salt lake atmospheric environment in western china [J]. Acta Metallurgica Sinica, 2014, 50: 49
[16] 王彬彬, 王振尧, 曹公望等. 2024铝合金在中国西部盐湖大气环境中的局部腐蚀行为 [J]. 金属学报, 2014, 50: 49
[17] Natesan M, Venkatachari G, Palaniswamy N. Kinetics of atmospheric corrosion of mild steel, zinc, glavanized iron and aluminum at 10 exposure stations in India [J]. Corro. Sci, 2006, 11: 3584
[18] Syed S. Influence of the environment on atmospheric corrosion of aluminium [J].Corrosion Engineering Science and Technology, 2010, 4: 282
[19] Liu S, Sun H Y, Fan J J, et al. Research progress on corrosion behavior of galvanized steel [J]. Materials Protection, 2012, 12: 42
[19] 刘 栓, 孙虎元, 范汇吉等. 镀锌钢腐蚀行为的研究进展 [J]. 材料保护, 2012, 12: 42
[20] Zhang X G. Corrosion of zinc and zinc alloys [J]. Corrosion and Protection, 2006, 1: 41
[20] 章小鸽. 锌和锌合金的腐蚀 [J]. 腐蚀与防护, 2006, 1: 41
[21] Azmat N S, Ralston K D, Muddle B C.Corrosion of Zn under acidified marine droplets [J]. Corro.Sci, 2011, 53: 1604
[22] Bernard M C, Hugot L A, Philips N .Underpaint corrosion of zinc-coat ed steel sheet studied by in situ Raman spectroscopy [J]. Corro. Sci, 1993, 5: 13
[23] Liu Y W, Wang Z Y, Cao G W, et al. Corrosion behavior of Zn simulated acid rain atmospheric environment [J]. The Chinese Journal of Nonferous Metals, 2011, 25: 375
[23] 刘雨薇, 王振尧, 曹公望等. Zn在模拟酸雨大气环境中的腐蚀行为 [J]. 中国有色金属学报, 2011, 25: 375
[24] Chunga S C, Cheng J R, Chioub S D, et al.EIS behavior of anodized zinc in chloride environments [J]. Corro. Sci, 2000, 42: 1249
[25] Chung S C, Sung S L, Hsien C C, et al. SHIH.Application of EIS to the initial stages of atmospheric zinc corrosion [J]. Journal of Applied Electrochemistry, 2000, 30: 607
[26] Katayama H K, Kurodav S J. Long-term atmospheric corrosion properties of thermally sprayed Zn, Aland Zn-Al coatings exposed in a coastal area [J]. Corro. Sci, 2013, 76: 35
[27] Liu S, Sun H Y, Sun L J, et al.Effects of pH and Cl-concentration on corrosion behavior of the galvanized steel in simulated rust layer solution [J]. Corro. Sci, 2012, 65: 520
[28] Stern M, Geary A L. Electrochemical polarization: I. A theoretical analysis of the shape of polarzation curve [J]. J. Electrochem. Soc, 2004, 16: 156
[29] Roberge P, Klassen R, Haberecht P. Atmospheric corrosivity modeling-a review [J]. Mater. Des, 2002, 23: 321
[30] Hosking N, Strom M, Shipway P, et alCorrosion resistance of zinc-magnesium coated steel [J]. Corro. Sci, 2007, 49: 3669
[31] Cui Z Y, Li X G, Xiao K, et al. Corrosion behavior of field-exposed zinc in a tropical marine atmosphere [J]. Corro. Sci, 2014, 70: 731
[32] Cole I S, Ganther W D, Sinclair J Det al, A study of the wetting of metal surfaces in order to understand the processes controlling atmospheric corrosion [J]. J. Electrochem. Soc, 2004, 151: 627
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