CO2和微量H2S共存条件下N80S抗硫油管钢的腐蚀行为
CORROSION BEHAVIOR OF ANTI-SULFIDE TUBING STEEL N80S IN ENVIRONMENT CONTAINING CARBON DIOXIDE AND TRACE HYDROGEN SULFIDE
摘 要
用失重法、扫描电镜(SEM)、X射线能谱(EDS)及X射线衍射(XRD)法对N80S抗硫油管钢在CO2、微量H2S共存条件下的腐蚀行为进行实验研究.结果发现：在膜的形成过程中硫化物腐蚀产物膜(FeS、FeS0.9)会优先形成,并能在一定程度上阻碍CO2腐蚀的发生;腐蚀产物膜平整、颗粒细小;平均腐蚀速率较大,且有轻度局部腐蚀发生.
CO2
H2S
腐蚀产物膜
Anti-sulfide tubing steel N80S
H2S
CO2
Corrosion product film
Abstract
Corrosion behavior of N80S anti-sulfide tubing was studied in an environment containing carbon dioxide and a little hydrogen sulfide.The H2S played the major role in the reaction.FeS formed firstly during the progress of the experiment,it could resist the corrosion of CO2.Corrosion product films were regular.Average corrosion rate was high,and there was slight localized corrosion on the surface of N80S.
中图分类号 TG172
所属栏目 试验研究
基金项目
收稿日期 2006/9/14
修改稿日期 2006/10/10
网络出版日期
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引用该论文: ZHOU Wei-jun,YAN Mi-lin,WANG Cheng-da. CORROSION BEHAVIOR OF ANTI-SULFIDE TUBING STEEL N80S IN ENVIRONMENT CONTAINING CARBON DIOXIDE AND TRACE HYDROGEN SULFIDE[J]. Corrosion & Protection, 2007, 28(7): 357～360
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参考文献
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【2】Masamura K,Hashizume S,Sakai J.Polarization behavior of high-Aaloy OCTG in CO2 environment as affected by chlorides and sulfides[C]//Corrosion/87,6:359.
【3】周计明.油管钢在含CO2/H2S高温高压水介质中的腐蚀行为及防护技术的作用[D].西安:西北工业大学硕士学位论文,2002:26.
【4】Ma Houyi,Cheng Xiaoliang,Li Guiqiu,et al.The influence of hydrogen sulfide on corrosion of iron under different conditions[C]//Corrosion/2000,42:1669-1683.
【5】Vedage H,Ramanarayanan T A,Mumford J D,et al.Electrochemical growth of Iron sulfide films in H2S-saturated chloride media[J].Corrosion,1993,49(2):114-121.
【6】Wu Y M.Applying process modeling to screen refining equipment for wet hydrogen sulfide service[J].Corrosion,1998,54(2):169-173.
【7】Kimura M,et al.Sulfide stress cracking of line pipe[J].Corrosion,1989,45(4):340-346.
【8】Huang H H,Tsai W T,Lee J T.Electrochemical behavior of A516 carbon steel in solutions containing hydrogen sulfide[J].Corrosion,1996,52(9):708.
【9】张承中.金属的腐蚀与防护[M].北京:冶金工业出版社,2000:105.
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