碳钢在NaHSO3和Na2SO4溶液中加速腐蚀锈层比较
COMPARISON OF THE RUST LAYERS FORMED ON CARBON STEEL BY ACCELERATED CORROSION TESTING IN NaHSO3 AND Na2SO4 SOLUTIONS
摘 要
对碳钢在1.0mmol/L NaHSO3和1.0mmol/L Na2SO4溶液中分别进行周期浸润复合加速腐蚀试验,对其锈层进行红外光谱(IR)和扫描电镜(SEM)分析.各锈层物相组成相似,都含有γ-FeOOH、α-FeOOH、 Fe3O4和δ-FeOOH或FeSO4·7H2O.NaHSO3溶液中生成的锈层较疏松,颗粒较大,腐蚀速度较快；Na2SO4溶液中生成的锈层致密,腐蚀速度较低.并用Ferrihydrite对形成γ-FeOOH和α-FeOOH的促进作用解释了试验结果.
加速腐蚀试验
工业大气
促进作用
Carbon steel
Accelerated corrosion
Industrial atmosphere
Accelerated action
Abstract
Accelerated corrosion tests of immersion-dry-wet combined cycles in 1.0mmol/L NaHSO3 solution and 1.0mmol/L Na2SO4 solution respectively were performed.Corrosion products were analyzed by IR and SEM.The rusts were composed of γ-FeOOH,α-FeOOH,Fe3O4 and δ-FeOOH or FeSO4·7H2O.However the rust layer formed NaHSO3 was loose and corrosion rate was fast,while the rust layer formed in Na2SO4 was dense and corrosion rate was slow.Ferrihydrite had an accelerated action in forming γ-FeOOH and α-FeOOH.
中图分类号 TG172.3
所属栏目 试验研究
基金项目
收稿日期 2006/1/29
修改稿日期 2006/4/20
网络出版日期
作者单位点击查看
引用该论文: CHEN Hui-ling,CHEN Shu-hui,WEI Yu. COMPARISON OF THE RUST LAYERS FORMED ON CARBON STEEL BY ACCELERATED CORROSION TESTING IN NaHSO3 AND Na2SO4 SOLUTIONS[J]. Corrosion & Protection, 2006, 27(10): 496～498
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】陈鸿海.金属腐蚀学[M].北京:北京理工大学出版社,1996.
【2】王振尧.金属材料大气腐蚀研究动态[J].全面腐蚀控制,1995,(4):1-3.
【3】屈庆,严川伟,曹楚南.NaCl污染的A3钢在含SO2的大气环境腐蚀[J].腐蚀科学与防护技术,2001,13:432-436.
【4】Marco J F,Gracia M,Gancedo J R,et al.Characterization of the corrosion products forned on carbon steel after exposure to the open atmosphere[J].Corrosion Science,2000,42:753-771.
【5】马子川,魏 雨,郑学忠,等.Fe(Ⅱ)浓度及pH值对γ-FeOOH相转化为α-Fe2O3时间的影响[J].磁性材料及器件,1998,29(2):43-45,49.
【6】Hui Liu,Yu Wei,Yuhan Sun.The formation mechanism from ferrihydrite to hematite when Fe(Ⅱ) used as a catalyst[J].Journal of Molecular Catalysis A:Chemical,2005,226:135-140.
【2】王振尧.金属材料大气腐蚀研究动态[J].全面腐蚀控制,1995,(4):1-3.
【3】屈庆,严川伟,曹楚南.NaCl污染的A3钢在含SO2的大气环境腐蚀[J].腐蚀科学与防护技术,2001,13:432-436.
【4】Marco J F,Gracia M,Gancedo J R,et al.Characterization of the corrosion products forned on carbon steel after exposure to the open atmosphere[J].Corrosion Science,2000,42:753-771.
【5】马子川,魏 雨,郑学忠,等.Fe(Ⅱ)浓度及pH值对γ-FeOOH相转化为α-Fe2O3时间的影响[J].磁性材料及器件,1998,29(2):43-45,49.
【6】Hui Liu,Yu Wei,Yuhan Sun.The formation mechanism from ferrihydrite to hematite when Fe(Ⅱ) used as a catalyst[J].Journal of Molecular Catalysis A:Chemical,2005,226:135-140.
相关信息
