李松梅,辛长胜,刘建华,于美,文陈

• 1:北京航空航天大学材料科学与工程学院

摘要(Abstract)：

采用全浸加速腐蚀实验以及电化学实验方法,研究了40CrNi2Si2MoVA钢在0.5 mol/L NaNO3、NaCl和Na2SO4溶液中的腐蚀行为,并利用扫描电子显微镜(SEM)和X射线衍射分析(XRD)对腐蚀形貌及腐蚀产物进行了表征。结果表明:40CrNi2Si2MoVA钢在0.5 mol/L的NaNO3、NaCl和Na2SO4溶液中的腐蚀形貌及生成的腐蚀产物均不同,NaNO3溶液中生成的腐蚀产物主要为α-FeOOH,吸附在基体表面,阻碍了基体的腐蚀,3种阴离子环境对其腐蚀速率大小依次为:SO42->Cl->NO3-。电化学研究结果表明40CrNi2Si2MoVA钢在0.5 mol/L的NaNO3、NaCl和Na2SO4溶液中均未发生钝化现象,且在Na2SO4溶液中的腐蚀电流和阳极塔菲尔斜率最大。

关键词(KeyWords)： 40CrNi2Si2MoVA钢;阴离子;腐蚀产物;表面形貌;电化学

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51171011)

作者(Author): 李松梅,辛长胜,刘建华,于美,文陈

DOI: 10.13289/j.issn.1009-6264.2013.10.027

参考文献(References)：

• [1]Graca M L A,Hoo C Y,Silva O M M.Failure analysis of a 300M steel pressure vessel[J].Engineering Failure Analysis,2009,16:182-186.
• [2]杨洪源,刘文珽.民机结构外露关键部位涂层加速腐蚀环境谱研究[J].航空学报,2007,28(1):90-93.YANG Hong-yuan,LIU Wen-ting.Accelerated corrosion environmental spectra of surface coating of civil aircraft structure[J].Acta Aeronautica et Astronautica Sinica,2007,28(1):90-93.
• [3]李红英,康巍,胡继东,等.X70和X80管线钢的电化学腐蚀行为[J].材料热处理学报,2011,32(10):151-158.LI Hong-ying,KANG Wei,HU Ji-dong,et al.Electrochemical corrosion behavior of grade X70 and X80 pipeline steels[J].Transactions of Materials and Heat Treatment,2011,32(10):151-158.
• [4]Cao X,Xu C C.Effect of chloride on the atmospheric corrosion of simulated artifact iron in NO-3bearing pollutant environment[J].Acta Matallurgica Sinica,2006,19(1):34-42.
• [5]周琦,郭铁明,马勤,等.不同腐蚀介质中16Mn钢高温高压腐蚀行为的比较[J].材料热处理学报,2009,30(1):140-144.ZHOU Qi,GUO Tie-ming,MA Qin,et al.Comparison of high temperature and high pressure corrosion behavior of 16Mn in different corrosive environment[J].Transactions of Materials and Heat Treatment,2009,30(1):140-144.
• [6]Pyun S I,Moon S M,Ahn S H,et al.Effects of Cl-,NO-3,SO2-4ions on anodic dissolution of pure aluminum in alkaline solution[J].Corrosion Science,1999,41:653-667.
• [7]Liu Z Y,Dong C F,Jia Z J,et al.Pitting corrosion of X70 pipeline steel in the simulated wet storage environment[J].Acta Metallurgice Sinica,2011,47(8):1009-1016.
• [8]Ei-naggar M M.Effects of Cl-,NO3-and SO42-anions on the anodic behavior of carbon steel in deaerated 0.50 M NaHCO3solutions[J].Applied Surface Science,2006,252(18):6179-6194.
• [9]刘建华,田帅,李松梅,等.新型超高强度钢应力腐蚀断裂行为研究[J].航空学报,2011,32(6):1164-1170.LIU Jian-hua,TIAN Shuai,LI Song-mei,et al.Stress corrosion crack of new ultrahigh strength steel[J].Acta Aeronautica et Astronautica Sinica,2011,32(6):1164-1170.
• [10]孙敏,肖葵,董超芳,等.带腐蚀产物超高强度钢的电化学行为[J].金属学报,2011,47(4):442-448.SUN Min,XIAO Kui,DONG Chao-fang,et al.Electrochemical behaviors of ultra high strength steels with corrosion products[J].Acta Metallurgica Sinica,2011,47(4):442-448.
• [11]Sun M,Xiao K,Dong C F,et al.Electrochemical corrosion behavior of 300M ultra high strength steel in chloride containing environment[J].Acta Metallurgica Sinica,2010,23(4):301-311.
• [12]Figueroa D,Robinson M J.Hydrogen transport and embrittlement in 300M and AerMet100 ultra high strength steels[J].Corrosion Science,2010,52:1593-1602.
• [13]Zhong J Y,Sun M,Liu D B,et al.Effects of chromium on the corrosion and electrochemical behaviors of ultra-high strength steels[J].International Journal of Minerals,Metallurgy and Materials,2010,17(3):282-289.
• [14]杨景红,刘清友,王向东,等.耐候钢及其腐蚀产物的研究概况[J].中国腐蚀与防护学报,2007,27(6):367-372.YANG Jing-hong,LIU Qing-you,WANG Xiang-dong,et al.The progress of investigation on weathering steel and its rust layer[J].Journal of Chinese Society for Corrosion and Protection,2007,27(6):367-372.
• [15]Hu Y B,Dong C F,Sun M,et al.Effects of solution pH and Cl-on electrochemical behavior of an Aermet100 ultra-high strength steel in acidic environments[J].Corrosion Science,2011,53:4159-4165.
• [16]Badawy W A,Elegamy S S,Elazab A S.The electrochemical behavior of leaded brass in neutral Cl-and SO42-media[J].Corrosion Science,1995,37(12):1969-1979.
• [17]曹楚南,腐蚀电化学[M].北京:化学工业出版社,1994.

文章评论(Comment)：