pH值对高盐废水罐用304不锈钢的点蚀行为影响
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摘要
为了研究高盐废水pH值对304不锈钢点蚀行为的影响,本文选择pH值为3,6.8和12.6的3种高盐废水溶液,对其进行了循环极化曲线、Motty-Schotty曲线(M-S)和扫描振动电极技术(SVET)的研究。结果表明:304不锈钢的钝化膜在酸性溶液中具有N型半导体的性质,在中性和碱性溶液中具有P型半导体性质;在pH值为3的溶液中的循环极化曲线上的滞后环率先出现,并且滞后环面积最大,说明304不锈钢在酸性溶液中点蚀的扩展速率最大;另外,SVET数据显示在酸性溶液中的电流密度最大,且随腐蚀时间增加而增大;腐蚀后SEM形貌也证实了此结论。
Pitting corrosion behavior of 304 stainless steel(304 SS) in high salt wastewater with pH values such as pH=3(acidic), pH=6.8(neutral), pH=12.6(alkaline), was studied by means of cyclic polarization curve, Motty-Schotty curve(M-S) and scanning vibrating electrode technique(SVET) measurements. Results show that the hysteresis loop area on the cyclic polarization curve in the pH=3 solution is greater than that in pH=6.8 and pH=12.6, indicating that the pitting corrosion rate of the steel in the acidic solution is greater than that in neutral and alkaline ones. Motty-Schotty experiments show that the passive film formed in acidic solution on the steel presents characteristics of P-type semiconductor, while those in neutral and alkaline solution presents characteristics of N-type semiconductor. SVET data show that the corrosion current density of the steel increases with time. Among others the corrosion current density of the steel in the acidic solution is the largest, showing the most serious corrosion. SEM morphology after corrosion rectified this conclusion.
Pitting corrosion behavior of 304 stainless steel(304 SS) in high salt wastewater with pH values such as pH=3(acidic), pH=6.8(neutral), pH=12.6(alkaline), was studied by means of cyclic polarization curve, Motty-Schotty curve(M-S) and scanning vibrating electrode technique(SVET) measurements. Results show that the hysteresis loop area on the cyclic polarization curve in the pH=3 solution is greater than that in pH=6.8 and pH=12.6, indicating that the pitting corrosion rate of the steel in the acidic solution is greater than that in neutral and alkaline ones. Motty-Schotty experiments show that the passive film formed in acidic solution on the steel presents characteristics of P-type semiconductor, while those in neutral and alkaline solution presents characteristics of N-type semiconductor. SVET data show that the corrosion current density of the steel increases with time. Among others the corrosion current density of the steel in the acidic solution is the largest, showing the most serious corrosion. SEM morphology after corrosion rectified this conclusion.
引文
[1]Wang H Q,Li W,Du L.A new technology in the treatment of high concentration salt water[J].Environ.Dev.,2015,27(3):83(王海琴,李炜,都兰.一种处理高浓度含盐废水的新工艺[J].环境与发展,2015,27(3):83)
[2]Xie P.Combination technics of UF and RO treatmon:OF heavy salt water[J].China Resour.Comprehen.,2005,(9):27(谢鹏.超滤及反渗透组合工艺处理高盐水[J].中国资源综合利用,2005,(9):27)
[3]Zondervan E,Roffel B.Evaluation of different cleaning agents used for cleaning ultra filtration membranes fouled by surface water[J].J.Membrane Sci.,2007,304:40
[4]Wang B Q,Cui S B.Discussion about the reverse osmosis membrane separation technologies applied to wastewater treatment of the city[J].Tianjin Chem.Ind.,2003,17(6):45(王炳强,崔树宝.反渗透膜法处理城市污水技术的探析[J].天津化工,2003,17(6):45)
[5]Fu S Q,Chen P,Luo Z X.Principle and process of high salinity wastewater treatment by osmosis[J].Power Technol.Environ.Prot.,2007,31(2):96(付守琪,陈萍,罗专溪.渗透法处理高盐废水的原理及工艺[J].电力环境保护,2007,31(2):96)
[6]Liu Z M.The treatment of high-salinity dye intermediate wastewater by electrochemical method[J].J.Shandong Inst.Light Ind.,2005,19(4):30(刘占孟.电化学法处理高盐度染料中间体废水实验研究[J].山东轻工业学院学报,2005,19(4):30)
[7]Zheng X Z,Dai Y,Xie M.Test study on the treatment and recovery of chanical waste water with high salinity by evaporation[J].Pollut.Control Tech.,2009,22(4):5(郑贤助,戴艳,谢敏.高浓度含盐化工废水蒸发脱盐回收处理的试验研究[J].污染防治技术,2009,22(4):5)
[8]Guo J Z.Experimental research on disposing high-salinity wastewater by NACE membrane technology[D].Hohhot:Inner Mongolia University,2012(郭建中.NACE膜技术处理高盐废水的实验研究[D].呼和浩特:内蒙古大学,2012)
[9]Shi L,Zheng Z J,Gao Y.Mechanism and research methods of pitting corrosion of stainless steels[J].Mater.Rev.,2015,29(23):79(石林,郑志军,高岩.不锈钢的点蚀机理及研究方法[J].材料导报,2015,29(23):79)
[10]Du N,Ye C,Tian W M,et al.304 stainless steel pitting behavior by means of electrochemical impedance spectroscopy[J].J.Mater.Eng.,2014,(6):68(杜楠,叶超,田文明等.304不锈钢点蚀行为的电化学阻抗谱研究[J].材料工程,2014,(6):68)
[11]Wang C,Wang F,Wang F H.Electrochemical behavior of AISI304stainless steel in 3.5%Na Cl solution and its protectiion by organic silicion paint[J].Corros.Sci.Prot.Technol.,2003,15:200(王成,江峰,王福会.3.5%Na Cl溶液中AISI304不锈钢的电化学行为及有机硅涂层的防护[J].腐蚀科学与防护技术,2003,15:200)
[12]Izquierdo J,Martín-Ruíz L,Fernández-Pérez B M,et al.Scanning microelectrochemical characterization of the effect of polarization on the localized corrosion of 304 stainless steel in chloride solution[J].J.Electroanal.Chem.,2014,728:148
[13]Taveira L V,Corte D A D,Dick L F P.Area effects on the mottschottky behavior of anodic films formed on AISI 304 stainless steel[J].ECS Trans.,2010,25:17
[14]Wei X,Dong J H,Tong J,et al.Influence of temperature on pitting corrosion resistance of Cr26Mo1 ultra pure high chromium ferrite stainless steel in 3.5%Na Cl solution[J].Acta Metall.Sin.,2012,48:120(魏欣,董俊华,佟健等.温度对Cr26Mol超纯高铬铁素体不锈钢在3.5%Na Cl溶液中耐点蚀性能的影响[J].金属学报,2012,48:120)
[15]Gao S J,Dong C F,Luo H,et al.Electrochemical behavior and nonlinear mott-schottky characterization of a stainless steel passive film[J].Anal.Lett.,2014,47:1162
[16]Franklin M J,White D C,Isaacs H S.Pitting corrosion by bacteria on carbon steel,determined by the scanning vibrating electrode technique[J].Corros.Sci.,1991,32:945
[17]Trethewey K R,Sargeant D A,Marsh D J,et al.Applications of the scanning reference electrode technique to localized corrosion[J].Corros.Sci.,1993,35:127
[18]Wang L W,Du C W,Liu Z Y,et al.Local corrosion SVET study of X70 steel welded joint in acid solution[J].Corros.Prot.,2012,33:935(王力伟,杜翠薇,刘智勇等.X70钢焊接接头在酸性溶液中的局部腐蚀SVET研究[J].腐蚀与防护,2012,33:935)
[19]Yang R C,Bi H J,Niu S R,et al.Influence of temperature and mass fraction of C1-on pitting corrosion resistance of 304 stainless steel[J].J.Lanzhou Univ.Technol.,2010,36(5):5(杨瑞成,毕海娟,牛绍蕊等.温度和Cl-质量分数对304不锈钢耐点蚀性能的影响[J].兰州理工大学学报,2010,36(5):5)
[20]Pu N,Chen J,Yin C J,et al.Investigation on pitting corrosion behavior of ultrafine-grained 304L stainless steel in Cl-containing solution[J].Acta Metall.Sin.,2015,51:1077(朴楠,陈吉,尹成江等.超细晶304L不锈钢在含Cl^-溶液中点蚀行为的研究[J].金属学报,2015,51:1077)
[21]Zeng Z W,Chen L,Tang Y B,et al.Study on passivation behavior of 304L stainless steel reinforcements in simulated concrete pore solutions[J].Guangdong Chem.Ind.,2013,40(22):39(曾志文,陈龙,汤雁冰等.304L不锈钢钢筋在模拟混凝土孔溶液中的钝化行为[J].广东化工,2013,40(22):39)
[22]Carmezim M J,Sim?es A M,Montemor M F,et al.Capacitance behaviour of passive films on ferritic and austenitic stainless steel[J].Corros.Sci.,2005,47:581
[23]Li J B,Zheng M S,Zhu J W.Semiconductive properties of passive film formed on 304L stainless steel[J].Corros.Sci.Prot.Technol.,2006,18:348(李金波,郑茂盛,朱杰武.304L不锈钢钝化膜半导体性能研究[J].腐蚀科学与防护技术,2006,18:348)
[24]Taveira L V,Montemor M F,Da Cunha Belo M,et al.Influence of incorporated Mo and Nb on the Mott-Schottky behaviour of anodic films formed on AISI 304L[J].Corros.Sci.,2010,52:2813
[25]Zhao Y T.Photocurrent response analysis of passive films with duplex structures[D].Beijing:North China Electric Power University,2014(赵园婷.双层结构钝化膜的光电流响应分析[D].北京:华北电力大学,2014)
[26]Hakiki N E,Montemor M F,Ferreira M G S,et al.Semiconducting properties of thermally grown oxide films on AISI 304 stainless steel[J].Corros.Sci.,2000,42:687
[27]Zhang G Y,Zhang H,Zhao Z F,et al.Electronic theoretical study of the influence of impurities on corrosion resistance of magnesium alloy[J].Acta Phys.Sin.,2006,55:2439(张国英,张辉,赵子夫等.杂质对镁合金耐蚀性影响的电子理论研究[J].物理学报,2006,55:2439)
[28]Zhang M M,Men J,Huang X Y,et al.Pitting corrosion behaviors of 304 stainless steel by studied spatial electrochemical scanning microscopy[J].Corros.Prot.,2012,33:482(张明明,孟君,黄晓义等.利用SECM技术研究304不锈钢的点蚀行为[J].腐蚀与防护,2012,33:482)
[29]Yu J G,Luo J L,Norton P R.Investigation of hydrogen induced pitting active sites[J].Electrochim.Acta,2002,47:4019
[2]Xie P.Combination technics of UF and RO treatmon:OF heavy salt water[J].China Resour.Comprehen.,2005,(9):27(谢鹏.超滤及反渗透组合工艺处理高盐水[J].中国资源综合利用,2005,(9):27)
[3]Zondervan E,Roffel B.Evaluation of different cleaning agents used for cleaning ultra filtration membranes fouled by surface water[J].J.Membrane Sci.,2007,304:40
[4]Wang B Q,Cui S B.Discussion about the reverse osmosis membrane separation technologies applied to wastewater treatment of the city[J].Tianjin Chem.Ind.,2003,17(6):45(王炳强,崔树宝.反渗透膜法处理城市污水技术的探析[J].天津化工,2003,17(6):45)
[5]Fu S Q,Chen P,Luo Z X.Principle and process of high salinity wastewater treatment by osmosis[J].Power Technol.Environ.Prot.,2007,31(2):96(付守琪,陈萍,罗专溪.渗透法处理高盐废水的原理及工艺[J].电力环境保护,2007,31(2):96)
[6]Liu Z M.The treatment of high-salinity dye intermediate wastewater by electrochemical method[J].J.Shandong Inst.Light Ind.,2005,19(4):30(刘占孟.电化学法处理高盐度染料中间体废水实验研究[J].山东轻工业学院学报,2005,19(4):30)
[7]Zheng X Z,Dai Y,Xie M.Test study on the treatment and recovery of chanical waste water with high salinity by evaporation[J].Pollut.Control Tech.,2009,22(4):5(郑贤助,戴艳,谢敏.高浓度含盐化工废水蒸发脱盐回收处理的试验研究[J].污染防治技术,2009,22(4):5)
[8]Guo J Z.Experimental research on disposing high-salinity wastewater by NACE membrane technology[D].Hohhot:Inner Mongolia University,2012(郭建中.NACE膜技术处理高盐废水的实验研究[D].呼和浩特:内蒙古大学,2012)
[9]Shi L,Zheng Z J,Gao Y.Mechanism and research methods of pitting corrosion of stainless steels[J].Mater.Rev.,2015,29(23):79(石林,郑志军,高岩.不锈钢的点蚀机理及研究方法[J].材料导报,2015,29(23):79)
[10]Du N,Ye C,Tian W M,et al.304 stainless steel pitting behavior by means of electrochemical impedance spectroscopy[J].J.Mater.Eng.,2014,(6):68(杜楠,叶超,田文明等.304不锈钢点蚀行为的电化学阻抗谱研究[J].材料工程,2014,(6):68)
[11]Wang C,Wang F,Wang F H.Electrochemical behavior of AISI304stainless steel in 3.5%Na Cl solution and its protectiion by organic silicion paint[J].Corros.Sci.Prot.Technol.,2003,15:200(王成,江峰,王福会.3.5%Na Cl溶液中AISI304不锈钢的电化学行为及有机硅涂层的防护[J].腐蚀科学与防护技术,2003,15:200)
[12]Izquierdo J,Martín-Ruíz L,Fernández-Pérez B M,et al.Scanning microelectrochemical characterization of the effect of polarization on the localized corrosion of 304 stainless steel in chloride solution[J].J.Electroanal.Chem.,2014,728:148
[13]Taveira L V,Corte D A D,Dick L F P.Area effects on the mottschottky behavior of anodic films formed on AISI 304 stainless steel[J].ECS Trans.,2010,25:17
[14]Wei X,Dong J H,Tong J,et al.Influence of temperature on pitting corrosion resistance of Cr26Mo1 ultra pure high chromium ferrite stainless steel in 3.5%Na Cl solution[J].Acta Metall.Sin.,2012,48:120(魏欣,董俊华,佟健等.温度对Cr26Mol超纯高铬铁素体不锈钢在3.5%Na Cl溶液中耐点蚀性能的影响[J].金属学报,2012,48:120)
[15]Gao S J,Dong C F,Luo H,et al.Electrochemical behavior and nonlinear mott-schottky characterization of a stainless steel passive film[J].Anal.Lett.,2014,47:1162
[16]Franklin M J,White D C,Isaacs H S.Pitting corrosion by bacteria on carbon steel,determined by the scanning vibrating electrode technique[J].Corros.Sci.,1991,32:945
[17]Trethewey K R,Sargeant D A,Marsh D J,et al.Applications of the scanning reference electrode technique to localized corrosion[J].Corros.Sci.,1993,35:127
[18]Wang L W,Du C W,Liu Z Y,et al.Local corrosion SVET study of X70 steel welded joint in acid solution[J].Corros.Prot.,2012,33:935(王力伟,杜翠薇,刘智勇等.X70钢焊接接头在酸性溶液中的局部腐蚀SVET研究[J].腐蚀与防护,2012,33:935)
[19]Yang R C,Bi H J,Niu S R,et al.Influence of temperature and mass fraction of C1-on pitting corrosion resistance of 304 stainless steel[J].J.Lanzhou Univ.Technol.,2010,36(5):5(杨瑞成,毕海娟,牛绍蕊等.温度和Cl-质量分数对304不锈钢耐点蚀性能的影响[J].兰州理工大学学报,2010,36(5):5)
[20]Pu N,Chen J,Yin C J,et al.Investigation on pitting corrosion behavior of ultrafine-grained 304L stainless steel in Cl-containing solution[J].Acta Metall.Sin.,2015,51:1077(朴楠,陈吉,尹成江等.超细晶304L不锈钢在含Cl^-溶液中点蚀行为的研究[J].金属学报,2015,51:1077)
[21]Zeng Z W,Chen L,Tang Y B,et al.Study on passivation behavior of 304L stainless steel reinforcements in simulated concrete pore solutions[J].Guangdong Chem.Ind.,2013,40(22):39(曾志文,陈龙,汤雁冰等.304L不锈钢钢筋在模拟混凝土孔溶液中的钝化行为[J].广东化工,2013,40(22):39)
[22]Carmezim M J,Sim?es A M,Montemor M F,et al.Capacitance behaviour of passive films on ferritic and austenitic stainless steel[J].Corros.Sci.,2005,47:581
[23]Li J B,Zheng M S,Zhu J W.Semiconductive properties of passive film formed on 304L stainless steel[J].Corros.Sci.Prot.Technol.,2006,18:348(李金波,郑茂盛,朱杰武.304L不锈钢钝化膜半导体性能研究[J].腐蚀科学与防护技术,2006,18:348)
[24]Taveira L V,Montemor M F,Da Cunha Belo M,et al.Influence of incorporated Mo and Nb on the Mott-Schottky behaviour of anodic films formed on AISI 304L[J].Corros.Sci.,2010,52:2813
[25]Zhao Y T.Photocurrent response analysis of passive films with duplex structures[D].Beijing:North China Electric Power University,2014(赵园婷.双层结构钝化膜的光电流响应分析[D].北京:华北电力大学,2014)
[26]Hakiki N E,Montemor M F,Ferreira M G S,et al.Semiconducting properties of thermally grown oxide films on AISI 304 stainless steel[J].Corros.Sci.,2000,42:687
[27]Zhang G Y,Zhang H,Zhao Z F,et al.Electronic theoretical study of the influence of impurities on corrosion resistance of magnesium alloy[J].Acta Phys.Sin.,2006,55:2439(张国英,张辉,赵子夫等.杂质对镁合金耐蚀性影响的电子理论研究[J].物理学报,2006,55:2439)
[28]Zhang M M,Men J,Huang X Y,et al.Pitting corrosion behaviors of 304 stainless steel by studied spatial electrochemical scanning microscopy[J].Corros.Prot.,2012,33:482(张明明,孟君,黄晓义等.利用SECM技术研究304不锈钢的点蚀行为[J].腐蚀与防护,2012,33:482)
[29]Yu J G,Luo J L,Norton P R.Investigation of hydrogen induced pitting active sites[J].Electrochim.Acta,2002,47:4019
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