高温高压环境下13Cr不锈钢的腐蚀性能
Corrosion Performance of 13Cr Stainless Steel in High Temperature and High Pressure Environments
摘 要
采用高温高压釜研究了110钢级13Cr不锈钢在模拟油气田腐蚀环境气、液相条件下的腐蚀行为, 利用SEM、XRD及EDS等对表面腐蚀产物形貌及成分进行了分析。结果表明, 气、液两相环境下, 13Cr材料腐蚀速率均随温度的升高而在150 ℃左右达到最大值, 且气相腐蚀速率均大于液相。液相环境中13Cr钢主要发生均匀腐蚀, 局部腐蚀较为轻微, 气相则主要发生点蚀; 气、液两相条件下材料的点蚀速率均大于均匀腐蚀速率。13Cr不锈钢在两相条件下的腐蚀产物膜的主要成分为Fe-Cr化合物; 元素Cr主要以Cr2O3的形式存在于腐蚀产物膜中。
13Cr不锈钢
均匀腐蚀
点蚀
110 steel grade
13Cr stainless steel
uniform corrosion
pitting corrosion
Abstract
The corrosion behaviors of 13Cr stainless steel of 110 steel grade, 13Cr 110, were studied by high temperature and high pressure corrosion tests in gas and liquid states of simulated oilfield corrosion environments. The corrosion product scale was analyzed by scanning electron microscopy, energy dispersive X-ray spectrometer, X-ray diffraction and X-ray photoelectron spectroscopy. The results show that the corrosion rate of the materials increased with increasing the temperature and reached their maximum values in both gas-plase and liquid phase; The corrosion rate in gas was greater than in liquid. The corrosion mode of 13Cr110 steel in liquid was mainly uniform corrosion and a little localized corrosion, in the gas was mainly pitting. Pitting corrosion rate of materials was greater than the uniform rate was in both gas phase and liquid phase. The main composition of corrosion scale of 13Cr110 stainless was Fe-Cr compound; Element Cr was mainly in the form of Cr2O3 in the corrosion product scale.
中图分类号 TG172.82
所属栏目 试验研究
基金项目
收稿日期 2011/9/10
修改稿日期
网络出版日期
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备注牛坤, 硕士研究生,
引用该论文: NIU kun,ZHAO Guo-xian,ZHANG Guo-chao,CAI Wen-ting. Corrosion Performance of 13Cr Stainless Steel in High Temperature and High Pressure Environments[J]. Corrosion & Protection, 2012, 33(5): 407
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参考文献
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【3】Nasr-EI-Din H A. Field application of HCl-formic Acid system to acid fracture deep gas wells completed with super Cr-13 tubing in saudi arabia[C]//SPE 2003, Paper No.84952.
【4】Peter Felton, Michael John Schofield. Understanding the high temperature corrosion behaviour of modified 13% Cr martensitic OCTG[C]//Corrosion 98, Paper No.99.
【5】张国超, 林冠发, 孙育禄, 等. 13Cr不锈钢腐蚀性能的研究现状及进展[J]. 全面腐蚀控制, 2011, 25(4):16-20.
【6】Sunder Ramachandran. Development of high temperature, high pressure corrosion inhibitor[C]//Corrosion 2006, Paper No.06377.
【7】吕祥鸿, 赵国仙, 张建兵, 等. 超级13Cr马氏体不锈钢在CO2及H2S/CO2环境中的腐蚀行为[J]. 北京科技大学学报, 2010, 32(2):207-212.
【8】Shuji Hashizume, Katsumi Masamura, Kazuo Yamazaki. Performance of high strength super 13% Cr martensitic stainless steels[C]//CORROSION 2003, Paper No.03095.
【9】Kimura Mitsuo, Tamari Takanori, Shimamoto Ken. High Cr stainless steel oCTG with high strength and superior corrosion resistance[R]. JFE Technical Report, 2006(7):7-13.
【10】吕详鸿, 赵国仙, 张建兵. 低Cr钢在H2S/CO2环境中的腐蚀行为研究[J]. 材料工程, 2009, 7(10):20-25.
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