Abstract: The corrosion behaviors of super 13Cr tubing steels were investigated by immersion corrosion test in 5%,15%,25% and 35% NaCl solution. The corrosion rate, corrosion morphology, corrosion products and electrochemistry characteristics were analyzed by scanning electron microscope(SEM), energy dispersive spectrometer(EDS), X-ray diffraction (XRD), weight loss and polarization. The results showed that super 13Cr tubing steels had better general corrosion resistance properties in NaCl solution with the concentration of Cl-less than 35%, and the concentration of Cl-had influences on the corrosion of super 13Cr tubing steels in a certain degree. With the concentration of Cl-increased, the corrosion resistance properties of super 13Cr tubing steels decreased,while the tendency of corrosion increased. The higher concentration of Cl-accelerated the growth of pitting on the surface of the super 13Cr tubing steels, that caused localized corrosion, and then resulted in general corrosion. The corrosion rate increased with the increase of Cl-concentration, but with the corrosion degree aggravated, the corrosion products became thicker and the covering area increased, which isolated the contact between the substrate and the solution, thus slowing down the corrosion rate. The corrosion products consisted of Fe and Cr oxides.
王毅飞, 谢发勤. 超级13Cr油管钢在不同浓度Cl-介质中的腐蚀行为[J]. 材料导报, 2018, 32(16): 2847-2851.
WANG Yifei, XIE Faqin. Corrosion Behaviors of Super 13Cr Tubing Steels in NaCl Solution with Different Concentration. Materials Reports, 2018, 32(16): 2847-2851.
1 李鹤林. “石油管工程”的研究领域、初步成果和展望[M].北京:石油工业出版社,1999. 2 李鹤林,路民旭.油气田腐蚀类型、特点和几个重要研究领域[C]//中国腐蚀与防护学会成立20周年暨’99学术年会.北京:中国腐蚀与防护学会,1999. 3 Li H L, Zhang Y P, Han L H. Development situation of OCTG and production localization of hi-grade OCTG(partⅠ)[J]. Steel Pipe,2007,36(6):1(in Chinese). 李鹤林,张亚平,韩礼红.油井管发展动向及高性能油井管国产化(上)[J].钢管,2007,36(6):1. 4 Lv X H, Zhao G X, Zhang J B, et al. Corrosion behaviors of super 13Cr martensitic stainless steel under CO2 and H2S/CO2 environment[J].Journal of University of Science and Technology Beijing,2010,32(2):207(in Chinese). 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. 5 Pistorius P C, Burstein G T. Metastable pitting corrosion of stainless steels and the transition to stability[J]. Philosophical Transactions: Physical Sciences and Engineering,1992,341:531. 6 Ernst P, Newman R C. The mechanism of lacy cover formation in pitting[J]. Corrosion Science,1997,39(6):1133. 7 Zhang H R, Hao Y. Corrosion behavior of AZ91D magnesium alloy in Cl- solution[J]. Research Studies on Foundry Equipment,2007(3):19(in Chinese). 张汉茹,郝远.AZ91D镁合金在含Cl-溶液中腐蚀机理的研究[J].铸造设备研究,2007(3):19. 8 刘道新.材料的腐蚀与防护[M].西安:西北工业大学出版社,2006:15. 9 Smialowska Z S. Pitting corrosion of metals[M]. Texas: NACE,1986:126. 10 Newrnan R C. Dissolution and passivation kinetics of stainless alloys containing molybdenum coulometric studies of Fe-Cr and Fe-Cr-Mo alloys[J]. Corrosion Science,1985,25(5):331. 11 Wang X Y. Corrosion behavior in 3.5% NaCl solution of 316 SS passinated in an oxidizing acid liquor[J]. Corrosion Science and Production Technology,2000,12(6):311(in Chinese). 汪轩义.316L不锈钢钝化膜在Cl-介质中的耐蚀机制[J].腐蚀科学与防护技术,2000,12(6):311. 12 Wu W W, Jiang Y M, Liao J X, et al. Influence of Cl-on critical pitting temperature for 314 and 316 stainless steels[J]. Corrosion Science and Production Technology,2007,27(1):16(in Chinese). 吴玮巍,蒋益明,廖家兴,等.Cl离子对304、316不锈钢临界点蚀温度的影响[J],腐蚀科学与防护技术,2007,27(1):16. 13 Feng H T, Li T, Li X G, et al. Influence of Cl- concentration on the corrosion behavior of 2A12 aluminum alloy[J]. Journal of Inner Mongolia University Science and Technology,2010,29(2):136(in Chinese). 冯海涛,李涛,李晓刚,等.Cl-含量对2A12铝合金腐蚀行为的影响[J].内蒙古科技大学学报,2010,29(2):136.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2018, Vol. 32 
