Effect of Cathode Area on Stable Pitting Growth Rate of 304 Stainless Steel in 3.5%NaCl Solution

doi:10.11902/1005.4537.2017.187

Journal of Chinese Society for Corrosion and protection

2018, Vol. 38

Issue (6): 551-557 DOI: 10.11902/1005.4537.2017.187

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Effect of Cathode Area on Stable Pitting Growth Rate of 304 Stainless Steel in 3.5%NaCl Solution

Siqi ZHANG,Nan DU(

),Meifeng WANG,Shuaixing WANG,Qing ZHAO

1. National Defense Key Discipline Laboratory of Light Alloy Processing Science and Technology, Nanchang Hangkong University, Nanchang 330063, China

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Abstract

The effect of cathode area on stable pitting grows of 304 stainless steel in 3.5% (mass fraction) NaCl solution was investigated by means of immersion test, electrochemical impendence spectroscope (EIS), potentiodynamic polarization and three-dimensional video microscope. The growth of stable pitting was then simulated. The results showed that when an impressed cathode was present in the solution, the dissolution rate of anode was dramatically enhanced: as the area radio of cathode to anode enlarged from 1 to 64, the corrosion increased, however, when the radio reached 64 and above, the corrosion rate tended to be stable. At this time the current density is 2.2 times of that without additional cathode. With the presence of an impressed cathode，the rate of hydrogen evolution reaction could increase in FeCl₃solution. The presence of an impressed cathode could also increase the anodic dissolution rate of the bottom of a naturally grown pit on 304 stainless in 3.5%NaCl solution according to the results of simulated experiment.

Key words: stable pitting pit stimulation cathodic reaction 304 stainless steel

Received: 13 November 2017

ZTFLH:

TG174

Fund: National Natural Science Foundation of China(51561024)

Corresponding Authors: Nan DU E-mail: d_nan@sina.com

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Cite this article:

Siqi ZHANG,Nan DU,Meifeng WANG,Shuaixing WANG,Qing ZHAO. Effect of Cathode Area on Stable Pitting Growth Rate of 304 Stainless Steel in 3.5%NaCl Solution. Journal of Chinese Society for Corrosion and protection, 2018, 38(6): 551-557.

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https://www.jcscp.org/EN/10.11902/1005.4537.2017.187 OR https://www.jcscp.org/EN/Y2018/V38/I6/551

Fig.1 Schematic diagram of the experiment device

Fig.2 Mass loss curves of 304 stainless steel in 3.0 mol/L FeCl₃solution under the conditions with and with-out additional cathode possessing the same area as the anode

Fig.3 Potentiodynamic polarization curves of 304 stain-less steel in FeCl₃solution under the conditions of differentS_c:S_avalues

Table 1 Fitting results of potentiodynamic polarization cu-rves under the conditions of differentS_c:S_avalues

Fig.4 Effect ofS_c:S_avalue on OCP of 304 stainless steel in FeCl₃solution

Fig.5 Effect ofS_c:S_avalue on corrosion current density of 304 stainless steel in FeCl₃solution

Table 2 Calculated increments of current density of 304 stainless steel anode corresponding to different areas of additional cathode

Fig.6 Surface morphologies of the 304 sainless steel anode before and after potentiodynamic polarization under different conditions: (a, e) no polarization, (b, f) polarization/no additional cathode, (c, g) polarization/S_c:S_a=1, (d, h) polarization/S_c:S_a=64

Fig.7 Nyquist plots of 304 stainless steel in FeCl₃solution under the conditions of variousS_c:S_avalues

Fig.8 Equivanlent circuits of EIS under the different cond-itions: (a)S_c:S_a=0, 64, 128, 256; (b)S_c:S_a=2, 4, 8, 16, 32

Table 3 Fitting results of EIS

[1]	Ye C,Du N,Zhao Q,et al.Progress in research of pitting corrosion behavior and research methods of stainless steels[J].Corros. Prot.,2014,35:271
[1]	叶超,杜楠,赵晴等.不锈钢点蚀行为及研究方法的进展[J].腐蚀与防护,2014,35:271
[2]	Yan M G,Wu X R,Zhu Z S.Recent progress and prospects for aeronautical material technologies[J].Aeron. Manuf. Technol.,2003, (12):19
[2]	颜鸣皋,吴学仁,朱知寿.航空材料技术的发展现状与展望[J].航空制造技术,2003, (12):19
[3]	Huang G Q.Corrosion of stainless steels in tidal zone-exposure test for 16 years[J]. J
[3]	Chin.Soc.Corros. Prot.,2002,22:330
[3]	黄桂桥.不锈钢海水潮汐区16年腐蚀行为[J].中国腐蚀与防护学报,2002,22:330
[4]	Karki V,Singh M.Investigation of corrosion mechanism in type 304 stainless steel under different corrosive environments: A SIMS study[J].Int. J. Mass Spectrom.,2017,421:51
[5]	Zamaletdinov I I.Pitting on passive metals[J].Prot. Met.,2007,43:470
[6]	Cheng C Q,KlinkenbergLI,Ise Y,et al.Pitting corrosion of sensitised type 304 stainless steel under wet–dry cycling condition[J].Corros. Sci.,2017,118:217
[7]	Du N,Tian W M,Zhao Q,et al.Pitting corrosion dynamics and mechanisms of 304 stainless steel in 3.5%NaCl solution[J].Acta Metall. Sin.,2012,48:807
[7]	杜楠,田文明,赵晴等.304不锈钢在3.5%NaCl溶液中的点蚀动力学及机理[J].金属学报,2012,48:807
[8]	Tian W M,Li S M,Du N,et al.Effects of applied potential on stable pitting of 304 stainlesssteel[J].Corros. Sci.,2015,93:242
[9]	Davydov A D.Analysis of pitting corrosion rate[J].Russ.J.Electrochem.,2008,44:835
[10]	Szklarska-Smialowska Z.Mechanism of pit nucleation by electrical breakdown of the passive film[J].Corros. Sci.,2002,44:1143
[11]	Burstein G T,Liu C,Souto R M,et al.Origins of pitting corrosion[J].Corros. Eng. Sci. Technol.,2004,39:25
[12]	Huang S X,Du N,Zhao Q,et al.Fe3+hydrolysis and its impact on the pitting behavior of 304 stainless steel[J].Corros. Prot.,2016,37:453
[12]	黄世新,杜楠,赵晴等.Fe3+水解及其对304不锈钢点蚀行为的影响[J].腐蚀与防护,2016,37:453
[13]	Liu D X.Corrosion and Protection of Material[M].Xi'an:Northwestern Polytechnical University Press,2006
[13]	刘道新.材料的腐蚀与防护[M].西安:西北工业大学出版社,2006)
[14]	Liang C H,Gao Y.Influence of sensibilization heat treatment on corrosion resistance of 304 stainless steel[J].Chem. Eng. Mach.,1995,22:87
[14]	梁成浩,高扬.304不锈钢敏化热处理对耐蚀性的影响[J].化工机械,1995,22:87
[15]	Ryan M P,Williams D E,Chater R J,et al.Why stainless steel corrodes[J].Nature,2002,415:770
[16]	Wu D R.A Manual of Chemical Process Design (Top Volume)[M].2nd Ed. Beijing:Chemistry Industry Press,1996:1041
[16]	吴德荣.化工工艺设计手册 (上册)[M]. 第2>版.北京:化学工业出版社,1996:1041
[17]	Ai Y J,Du N,Zhao Q,et al.Effect of temperature on initiation of metastable pits and geometric features of stable pits for 304 stainless steel[J]. J Chin. Soc. Corros. Prot.,2017,37:135
[17]	艾莹珺,杜楠,赵晴等.温度对304不锈钢亚稳蚀孔萌生和稳态蚀孔几何特征的影响[J].中国腐蚀与防护学报,2017,37:135
[18]	Zhang S H,Tan Y,Liang K X.In-situimpedance investigation of 304 stainless steel between pit growth and repassivation state[J]. J Chin. Soc. Corros. Prot.,2011,31:130
[18]	张胜寒,檀玉,梁可心.电化学阻抗谱法对304不锈钢孔蚀生长和再钝化阶段的原位研究[J].中国腐蚀与防护学报,2011,31:130
[19]	Zhao W M,Wang Y.EIS study on the effects of heat treatment on corrosion behavior of nickel base alloy coating on low carbon steel[J].Acta Metall. Sin.,2008,44:1125
[19]	赵卫民,王勇.电化学阻抗谱法研究热处理对低碳钢镍基合金涂层腐蚀行为的影响[J].金属学报,2008,44:1125

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