硫脲对HR-2不锈钢的缓蚀性
Corrosion Inhibition of Sulfourea to HR-2 Stainless Steel
摘 要
采用扫描电化学显微镜(SECM)和极化曲线研究了硫脲对HR-2不锈钢在酸性氯化钠溶液中的缓蚀作用。结果表明，硫脲具有明显的缓蚀作用，当溶液中硫脲的摩尔浓度增加到0.75 mmol/L后，缓蚀作用趋于稳定; 极化曲线的自腐蚀电位变化微小，采用El-Awady模型拟合确定硫脲在不锈钢表面的吸附是单分子层，一个硫脲分子吸附在多个活性点上。
扫描电化学显微镜
塔菲尔曲线
吸附机理
corrosion inhibitor
scanning electrochemical microscopy (SECM)
Tafel curve
adsorption mechanism
Abstract
The inhibition effects of sulfourea on HR-2 stainless steel in acidic sodium chloride solution were studied by scanning electrochemical microscopy (SECM) and polarization curves. The results show that the corrosion inhibition of sulfourea is obvious. When the concentration of sulfourea increased to 0.75 mmol/L, the corrosion inhibition became stable; the corrosion potential changed tinily. According to EI-Awady model, the sulfourea adsorption is monomolecular layer on the surface of the stainless steel, one sulfourea molecular adsorb on multiple active points.
中图分类号 TG174.42
所属栏目 试验研究
基金项目 国家自然科学基金(50964008)
收稿日期 2013/4/10
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备注余强(1980-)，工程师，硕士，从事电化学相关研究,
引用该论文: YU Qiang,CHEN Zhen,WEI Chang. Corrosion Inhibition of Sulfourea to HR-2 Stainless Steel[J]. Corrosion & Protection, 2014, 35(2): 116
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参考文献
【1】曹楚南. 腐蚀电化学(第三版)[M]. 北京:化学工业出版社,2008.
【2】吴继勋. 金属防腐蚀技术(第一版)[M]. 北京:冶金工业出版社,2002.
【3】张天胜,张浩,高红,等. 缓蚀剂(第二版)[M]. 北京:化学工业出版社,2008.
【4】LI X H,DENG S D,FU H. Allyl thiourea as a corrosion inhibitor for cold rolled steel in H3PO4 solution[J]. Corrosion Science,2012,55:280-288.
【5】BARD A J,MIRKIN M V. Scanning electrochmical microscopy[M]. New York:Marcel Dekker,2001.
【6】王力伟,李晓刚,杜翠薇,等. 微区电化学测量技术进展及在腐蚀领域的应用[J]. 中国腐蚀与防护学报,2010,30(6):498-503.
【7】SANJA M,IVICA S. Thermodynamic characterization of metal dissolution and inhibitor adsorption processes in the low carbon steel/mimosa tannin/sulfuric acid system[J]. Applied Surface Science,2002,199:83-89.
【8】BOUKLAH M,HAMMOUTI B,LAGRENEE M,et al. Thermodynamic properties of 2,5-bis(4-methoxyphenyl)-1,3,4-oxadiazole as a corrosion inhibitor for mild steel in normal sulfuric acid medium[J]. Corrosion Science,2006,48(9):2831-2842.
【9】郭惠霞,马颖，董海荣,等. 镁合金微弧氧化膜在乙二醇水溶液中的腐蚀行为[J]. 机械工程材料,2013,37(6):42-47.
【10】蔡述兰，谯康全，任德虎，等. 4-氨基安替比林在盐酸溶液中的缓蚀行为[J]. 腐蚀与防护,2013,34(7):576-579.
【2】吴继勋. 金属防腐蚀技术(第一版)[M]. 北京:冶金工业出版社,2002.
【3】张天胜,张浩,高红,等. 缓蚀剂(第二版)[M]. 北京:化学工业出版社,2008.
【4】LI X H,DENG S D,FU H. Allyl thiourea as a corrosion inhibitor for cold rolled steel in H3PO4 solution[J]. Corrosion Science,2012,55:280-288.
【5】BARD A J,MIRKIN M V. Scanning electrochmical microscopy[M]. New York:Marcel Dekker,2001.
【6】王力伟,李晓刚,杜翠薇,等. 微区电化学测量技术进展及在腐蚀领域的应用[J]. 中国腐蚀与防护学报,2010,30(6):498-503.
【7】SANJA M,IVICA S. Thermodynamic characterization of metal dissolution and inhibitor adsorption processes in the low carbon steel/mimosa tannin/sulfuric acid system[J]. Applied Surface Science,2002,199:83-89.
【8】BOUKLAH M,HAMMOUTI B,LAGRENEE M,et al. Thermodynamic properties of 2,5-bis(4-methoxyphenyl)-1,3,4-oxadiazole as a corrosion inhibitor for mild steel in normal sulfuric acid medium[J]. Corrosion Science,2006,48(9):2831-2842.
【9】郭惠霞,马颖，董海荣,等. 镁合金微弧氧化膜在乙二醇水溶液中的腐蚀行为[J]. 机械工程材料,2013,37(6):42-47.
【10】蔡述兰，谯康全，任德虎，等. 4-氨基安替比林在盐酸溶液中的缓蚀行为[J]. 腐蚀与防护,2013,34(7):576-579.
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