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| CORROSION OF TREMIE PIPE OF W0714 FILM EVAPORATOR OF HEXANOLACTAM |
| YANG Genzhu1, LI Qinghua1, LIU Guoshuai1, WANG Bo1, LIU Jie1, XIONG Jinping2, HE Shaoping3, LU Zhengliang4
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1. Shijiazhuang Refining Branch, China Petrochemical Co. Ltd., Shijiazhuang 050032
2. Key Laboratory of Carbon Fiber and Functional Polyners of Ministry of Education, Beijing University of Chemical Technology, Beijing 100029
3. Beijing Gas Group Co., Ltd., Beijing 100011
4. Central Iron & Steel Research Insititute, Beijing 100081 |
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Abstract Corrosion mechanism of Tremie pipe of W0714 film evaporator of hexanolactam was investigated by chemical method, optical microscope and SEM etc.. the results showed that the non-sensitive intergranular corrosion took place on the Tremie pipe in the non-oxidizability medium. the potential of 304L SS in the medium was located at the transpassivation region, which resulted in the corrosion of the Tremie pipe.
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Received: 03 September 2010
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Corresponding Authors:
XIONG Jinping
E-mail: xiongjp@mail.but.edu.cn
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| [1] Zhang D K. Localized Corrosion of Stainless Steel [M].Beijing: Science Press, 1982 (张德康. 不锈钢局部腐蚀[M].北京: 科学出版社)[2] Zhu R Z. Metal Corrosion Science [M]. Beijing: Metallurgy Industry Press, 1989 (朱日彰. 金属腐蚀学[M]. 北京:冶金工业出版社, 1989)[3] He Y D. Corrosion and Protection of the Materials [M].Beijing: Mechanical Industry Press, 2005 (何业东.材料腐蚀与防护概论[M]. 北京: 机械工业出版社, 2005)[4] Wei B M. Fundamentals and Applications of Metals Corrosion [M]. Beijing: Chemical Industry Press 1984 (魏宝明.金属腐蚀理论及应用[M]. 北京: 化学工业出版社, 1984)[5] Wang R B. The reason of 18-8 austenitic stainless steel cankered [J]. Hardware Sci. Technol., 2002, 30(3): 10-12. (王荣滨. 18-8型奥氏体不锈钢的晶间腐蚀原因分析[J]. 五金科技, 2002,30(3): 10-12)[6] Zheng H S. Reasearch & preventing on corrosing between the crystalline substances problem of austenite stainless steel [J]. Mech. Elect. Eng. Technol., 2004, 33(1): 46-47 (郑海生.奥氏体不锈钢晶间腐蚀问题的研究及防止[J]. 机电工程技术, 2004, 33(1)46-47)[7] Luo H, Gong M. Intergranular corrosion of austenitic stainless steel [J]. Corros. Sci. Prot. Technol., 2006, 18(5): 357-360 (罗宏, 龚敏. 奥氏体不锈钢的晶间腐蚀[J].腐蚀科学与防护技术, 2006, 18(5): 357-360)[8] Kasparova O V. Intergranular corrosion of nickel alloys(Review)[J]. Prot. Met., 2000,36(6):524-530[9] Frangini S. Corrosion behavior of AISI 316L stainless steel and ODS FeAl aluminide in eutectic Li2CO3-K2CO3 molten carbonates under flowing CO2-O2 gas mixtures[J]. Oxid. Met., 2000, 53(1/2):139-145[10] Hua B D, Shen X S, Dai Z D, et al. The intergranular corrosion of 18-8 stainless steel at different potentials [J]. Acta Metall. Sin., 1961, 8(1): 5-9 (华保定, 沈行素, 戴钟道等.18铬-8镍型不锈钢的晶间腐蚀与电位关系[J]. 金属学报, 1961, 8(1): 5-9)[11] Li Y, Wei R S, Ta H W. Study on its susceptibility of the Non-sensitized intergranular corrosion for 316L stainless steel [J].Corros. Prot, 1991, 12(4): 177-182 (李异, 韦荣松, 褟浩文.316L不锈钢非敏化态晶间腐蚀敏感性研究[J]. 腐蚀与防护, 1991, 12(4):177-182)[12] Li Y, Ta H W, Wei R S. Study on the mechanism of intergranular corrosion for 316L stainless steel [J] Corros. Sci.Prot. Technol., 1993, 5(2): 131-135 (李异, 褟浩文, 韦荣松.316L不锈钢晶间腐蚀机理的探讨[J]. 腐蚀科学与防护技术, 1993, 5(2):131-135)[13] Qin L Y, Dong Z D. Application of electrochemical method to evaluate intergranular corrosion susceptibility of stainless steels [J]. Tai Gang Sci. Technol., 1991, 3: 80-86 (秦丽雁,董征东. 用电化学方法测量不锈钢晶间腐蚀的敏感性[J]. 太钢科技, 1991,3: 80-86)[14] Yu F Z, Xu C C, Yao J M. Intergranular corrosion of non-sensitized stainless steel in the urea medium and the segregation of phosphorus and silicon at grain boundaries. [J].J.Chin. Soc. Corros. Prot., 1985, 5(1): 18-24 (于福洲, 许淳淳,姚建明.固溶态不锈钢在尿素生产介质中的晶间腐蚀与磷（硅）的晶界富集[J].中国腐蚀与防护学报, 1985, 5(1): 18-24) |
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