温度对N80钢CO2腐蚀产物膜结构和强激光与粒子束力学性能的影响
Effect of Temperature on Microstructure and Mechanical Properties of CO2 Corrosion Scale on N80 Sreel
摘 要
利用高温高压釜,以油田地层水为腐蚀介质,以高温高压气水两相为腐蚀环境,在N80油套管钢上生成CO2腐蚀产物膜,研究了65~115 ℃温度范围内腐蚀产物膜的结构和力学特性.结果表明:当温度在65~90 ℃时,腐蚀产物膜的主要成分为(Fe,Ca)CO3;在115 ℃时,膜的主要成分为(Fe,Ca,Mg)CO3和Fe3O4.随温度的升高,腐蚀产物膜的各项力学性能,如硬度、杨氏模量、断裂韧性以及膜与基体的结合强度均显示出升高的趋势.
CO2腐蚀
腐蚀产物膜
力学性能
温度
N80 steel
CO2 corrosion
corrosion scale
mechanical property
temperature
Abstract
CO2 corrosion test was performed in a rotary autoclave at high temperature and high pressure in an aggressive solution simulating the stratum water in oil field.The effect of temperature on CO2 corrosion behavior of N80 steel was investigated.In the temperature range from 65℃ to 90℃,the composition of CO2 corrosion scale formed on N80 steel surface was(Fe,Ca)CO3,while it changed into(Fe,Ca,Mg)CO3 and Fe3O4 when the temperature increased to 115℃.Fracture toughness of the corrosion scale and the adhesion strength between the scale and substrate increased with increasing temperature.
中图分类号 TG172.8
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(50571012、50231020)
收稿日期 2008/5/16
修改稿日期 2008/7/1
网络出版日期
作者单位点击查看
引用该论文: YU Fang,GAO Ke-wei,QIAO Li-jie,CHU Wu-yang,LU Min-xu. Effect of Temperature on Microstructure and Mechanical Properties of CO2 Corrosion Scale on N80 Sreel[J]. Corrosion & Protection, 2009, 30(3): 145～148
被引情况:
【1】祝成龙,赵国仙,薛艳,李丹平,刘艳朝, "温度对连续油管QT-900在CO2环境中腐蚀行为的影响",腐蚀与防护 34, 232-235(2013)
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参考文献
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【3】吕祥鸿,赵国仙,路民旭.N80钢动态和静态CO2腐蚀行为对比研究[J].腐蚀科学与防护技术,2003,15(1):5-8.
【4】S L Wu,Z D Cui,F He,et al.Characterization of the surface film formed from carbon dioxide corrosion on N80 steel[J].Materials Letters,2004,58:1076-1081.
【5】Dugstad Arne.Mechanism of protective film formation during CO2 corrosion of carbon steel[C].Corrosion/98,NACE,1998:31.
【6】Masakatsu Ueda,Hideki Takabe.Effect of environmental factor and microstructure on morphology of corrosion products in CO2 environments[C].Corrosion/99,NACE,1999:13.
【7】陈长风,路民旭,赵国仙,等.N80油套管钢CO2腐蚀产物膜的力学性能[J].金属学报,2003,39(2):175-181.
【8】Ikeda A,Ueda M,Mukai S.CO2 behavior of carbon and Cr steels.advances in CO2 corrosion[M].Houston TX:NACE,1984:39-51.
【9】F Yu,K W Gao,Y J Su,et al.The fracture toughness of CO2 corrosion scale in pipeline steel[J].Mater Let,2005,59:1709-1713.
【10】林冠发,白真权,赵新伟,等.温度对二氧化碳腐蚀产物膜形貌特征的影响[J].石油学报,2004,25(3):101-105.
【11】G M Pharr.Measurement of mechanical properties by ultra-low load indentation[J].Mater Sci Eng,1998,A253:151-154.
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