[1]梁金明,唐荻,武会宾,等.含Cr低合金钢货油舱上甲板环境腐蚀行为[J].东南大学学报(自然科学版),2013,43(1):152-157.[doi:10.3969/j.issn.1001-0505.2013.01.029]
 Liang Jinming,Tang Di,Wu Huibin,et al.Environment corrosion behavior of cargo oil tank deck made of Cr-contained low-alloy steel[J].Journal of Southeast University (Natural Science Edition),2013,43(1):152-157.[doi:10.3969/j.issn.1001-0505.2013.01.029]
点击复制

含Cr低合金钢货油舱上甲板环境腐蚀行为()
分享到:

《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第1期
页码:
152-157
栏目:
材料科学与工程
出版日期:
2013-01-20

文章信息/Info

Title:
Environment corrosion behavior of cargo oil tank deck made of Cr-contained low-alloy steel
作者:
梁金明唐荻武会宾王立东
北京科技大学高效轧制国家工程研究中心, 北京 100083
Author(s):
Liang Jinming Tang Di Wu Huibin Wang Lidong
National Engineering Research Center of Advanced Rolling Technology, University of Science and Technology Beijing, Beijing 100083, China
关键词:
Cr含量 货油舱 腐蚀产物膜 大角度晶界
Keywords:
content of Cr cargo oil tanks corrosion product film large angle grain boundary
分类号:
TG172.3
DOI:
10.3969/j.issn.1001-0505.2013.01.029
摘要:
为了研制货油舱上甲板用低合金耐蚀钢和了解该环境下的腐蚀机理,采用自制的O2-CO2-SO2-H2S湿气腐蚀模拟装置,对不同Cr含量的低合金钢进行腐蚀行为研究.在进行腐蚀试验后,首先测量了腐蚀速率,然后应用SEM对腐蚀产物膜的微观形貌及结构进行分析,并通过EDS和XRD确定腐蚀产物膜的物相组成,采用EBSD手段分析大小角度晶界对腐蚀性能的影响.结果表明:模拟湿气腐蚀的腐蚀产物膜主要由α-FeOOH,γ-FeOOH,S,FeS2,Fe1-xS,FeS组成,且呈分层结构;3%Cr较1%Cr腐蚀速率显著下降;Cr含量上升到3%时,腐蚀产物膜内层出现明显的Cr富集;3%Cr较1%Cr含量实验钢的大角度晶界比例下降.Cr含量在一定范围内的提高有助于低合金钢表现出较好的耐蚀性能.
Abstract:
In order to develop a low-alloy anti-corrosion steel for the deck of cargo oil tank and understand the corrosion mechanism, the corrosion behavior of low-alloy steels containing different levels of Cr in a moisture gas of O2-CO2-SO2-H2S were investigated using cargo oil tank corrosion simulation device. After the corrosion test, corrosion rate was measured firstly, then the morphology of corrosion product films was observed by SEM(scanning electron microscope). The phase composition and structure of corrosion product film were analyzed by EDS(energy dispersive spectroscopy)and XRD(X-ray diffraction). EBSD(electron backscattered diffraction)was used to analyze the effect of the size of grain boundary angle on corrosion property. The results show that moisture corrosion product film of cargo oil tanks on the upper deck is composed of α-FeOOH, γ-FeOOH, element S, FeS2, Fe1-xS and FeS, displaying a multi-layered structure. Compared with 1%Cr steel, the corrosion rate of 3%Cr steel decreases significantly. When the Cr content reaches 3%, Cr enrichment forms in the inner layer of corrosion product film. In addition, the proportion of large angle grain boundary in 3%Cr steel is lower. With the increase of Cr content in a certain range, low-alloy steel may show good corrosion resistance.

参考文献/References:

[1] Soares C G, Garbatov Y, Zayed A, et al. Influence of environmental factors on corrosion of ship structures in marine atmosphere [J].Corrosion Science, 2009, 51(9):2014-2026.
[2] Soares C G, Garbatov Y, Zayed A, et al. Corrosion wastage model for ship crude oil tanks [J].Corrosion Science, 2008, 50(11):3095-3106.
[3] Shiomi H, Kaneko M, Kashima K, et al. Development of anti-corrosion steel for cargo oil tanks [C]//TSCF 2007 Shipbuilder Meeting. Busan, Korea,2007:1-8.
[4] Kashima K, Tanino Y, Kubo S, et al. Development of corrosion resistant steel for cargo oil tanks [C]//Shipbuilding Technology ISST. Osaka, Japan,2007:5-10.
[5] Sakashita S, Tatsumi A, Imamura H, et al. Development of anti-corrosion steel for the bottom plates of cargo oil tanks [C]//Shipbuilder Technology ISST. Osaka, Japan, 2007:1-5.
[6] Schmitt G. Effect of elemental sulfur on corrosion in sour gas systems [J].Corrosion, 1991, 47(4):285-307.
[7] Soares C G, Garbatov Y. Reliability of maintained, corrosion protected plates subjected to non-linear corrosion and compressive loads [J].Marine Structures, 1999, 12(6): 425-445.
[8] Imai S, Katoh K, Funatsu Y, et al. Development of new anti-corrosion steel for COTs of crude oil carrier [C]//Shipbuilder Technology ISST . Osaka, Japan, 2007:11-20.
[9] Inohara Y, Komori T, Kyono K, et al. Development of corrosion resistant steel for bottom plate of COT [C]//Shipbuilder Technology ISST . Osaka, Japan,2007:33-36.
[10] 柳伟,樊学华,李少飞,等.油轮舱CO2-O2-H2S-SO2湿气环境中低合金钢的腐蚀行为 [J].北京科技大学学报,2011,33(1):33-39.
  Liu Wei, Fan Xuehua, Li Shaofei, et al. Corrosion behavior of low alloy steels in a CO2-O2-H2S-SO2 wet gas environment of crude oil tanks [J].Journal of University of Science and Technology Beijing, 2011,33(1):33-39.(in Chinese)
[11] 杨建炜,张雷,丁睿明,等.X60管线钢在湿气和溶液介质中的H2S/CO2腐蚀行为 [J].金属学报,2008,44(11):1366-1377.
  Yang Jianwei, Zhang Lei, Ding Ruiming, et al. H2S/CO2 corrosion behavior of X60 pipeline steel in wet gas and solution [J].Acta Metallurgica Sinica,2008, 44(11):1366-1377.(in Chinese)
[12] 张成全,吴建生,郑文龙,等.耐候钢表面稳定锈层形成机理的研究[J].腐蚀科学与防护技术,2001,13(3):143-146.
  Zhang Chengquan, Wu Jiansheng, Zheng Wenlong, et al. Formation mechanism of protective rust on weathering steel [J].Corrosion Science and Protection Technology, 2001,13(3):143-146.(in Chinese)
[13] 方晓辉,时立迎.形变退火后铁素体不锈钢的晶界组成及腐蚀特性 [J].热加工工艺,2011,40(14):154-156.
  Fang Xiaohui, Shi Liying. Constitute and corrosion behaviors of grain boundary in cold-rolled and annealed ferritic stainless steel [J].Hot Working Technology, 2011,40(14):154-156.(in Chinese)

备注/Memo

备注/Memo:
作者简介: 梁金明(1988—),男,博士生;武会宾(联系人),男,博士,副研究员,wuhb@ustb.edu.cn.
基金项目: 国家科技重大专项资助项目(2011ZX05016-004)、“十二五”国家科技支撑计划资助项目(2011BAE25B00).
引文格式: 梁金明,唐荻,武会宾,等.含Cr低合金钢货油舱上甲板环境腐蚀行为[J].东南大学学报:自然科学版,2013,43(1):152-157. [doi:10.3969/j.issn.1001-0505.2013.01.029]
更新日期/Last Update: 2013-01-20