Acta Metall Sin  1998, Vol. 34 Issue (10): 1043-1048    DOI:

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STRUCTURE DEGRADATION OF HP CRACKING TUBE DURING SERVICE

WU Xinqiang; YANG Yuansheng; ZHAN Qian; HU Zhuangqi(Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)Correspondent:WU Xinqiang; Tel: (024)23843531-55901; Fax: 23891320;E-mail: ysyang@imr.ac.cn

WU Xinqiang; YANG Yuansheng; ZHAN Qian; HU Zhuangqi(Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015)Correspondent:WU Xinqiang; Tel: (024)23843531-55901; Fax: 23891320;E-mail: ysyang@imr.ac.cn. STRUCTURE DEGRADATION OF HP CRACKING TUBE DURING SERVICE. Acta Metall Sin, 1998, 34(10): 1043-1048.

Abstract References Related Articles Recommended Metrics Download:  PDF(2090KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The degradation mechanism of cracking tube material during service was discussed on the basis of analysing the structural morphologies of the HP tube used. The resultsreveal that the carbide-free zone and carburized zone in the inner wall of tube is closely associatedwith the spalling and regeneration of surface chide layer, the formation of intergranular attackzone, the diffusion velocity of carbon and alloy elements in matrix and the solution limit of carbonin alloy. The formation and growth of filament catalyzed coke promote the structure degradationof inner wall of cracking tube, while the deposition of non-catalyzed gas coke can alleviate thedegradation degree of tube material to some extent. The cycle operation of coking/decoking isthe main reason for material degradation of cracking tube in service. Key words:  heat-resistant steel      cracking tube      carbide-free zone      carburization      coking      Received:  18 October 1998      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1998/V34/I10/1043 1 Hou W T, Honeycombe R W K. Mater Sci Technol,1985; 1: 385 2 Soares G D A, Almeida L H, Silveira T L, May I. Mater Charact, 1992; 29: 387 3 Ibanez R A P, Soares G D A, Almida L H, May I. Mater Charact, 1993;30: 243 4 Shinohara T, Kohchi L, Shibata K, Sugltani J, Tsuchida K. Werkst Korros, 1986; 37: 410 5 Tsai C H, Albrigbt L F. Ind Lab Pyrolyses Symp, 1976; 32: 274 6 Pertillo A, Princip B. Hgdrocarbon Process, 1975; 54: 174 7 Bennett M J, Price J B. J Mater Sci, 1981; 16: 170 8 Hall D J, Hossain M K, Atfinson R F. High Temp High Pressures, 1982; 14: 527 9 Farkas D, Ohla K. Oxid Met,1983; 19(3/4):99 10 Mazandarany F N, Pehlke R D. Wetall Trans,1973; 4A: 2067 11 Small M, Ryba E. Wetall Trans,1981; 12A: 1389 12 Mitchell D R G, Young D J. J Water Sci,1994; 29: 4357 [1] WANG Zhoutou, YUAN Qing, ZHANG Qingxiao, LIU Sheng, XU Guang. Microstructure and Mechanical Properties of a Cold Rolled Gradient Medium-Carbon Martensitic Steel[J]. 金属学报, 2023, 59(6): 821-828. [2] JIN Xinyan, CHU Shuangjie, PENG Jun, HU Guangkui. Effect of Dew Point on Selective Oxidation and Decarburization of 0.2%C-1.5%Si-2.5%Mn High Strength Steel Sheet During Continuous Annealing[J]. 金属学报, 2023, 59(10): 1324-1334. [3] LI Xiaolin, LIU Linxi, LI Yating, YANG Jiawei, DENG Xiangtao, WANG Haifeng. Mechanical Properties and Creep Behavior of MX-Type Precipitates Strengthened Heat Resistant Martensite Steel[J]. 金属学报, 2022, 58(9): 1199-1207. [4] ZHOU Hongwei, GAO Jianbing, SHEN Jiaming, ZHAO Wei, BAI Fengmei, HE Yizhu. 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