Effect of Al and Ca treatment on rust layer of low alloy steel on upper deck conditions
LIU Jian1，LI Hao2
（1. Suqian Jinxin Steel Rolling Co.， Ltd.， of Nisco， Suqian 223800， Jiangsu， China 2. Department of Structure Steels， Central Iron and Steel Research Institute， Beijing 100081， China）
Abstract：A simulated-corrosion test apparatus was used to investigate the effect of inclusions on the corrosion behavior of a low alloy steels under simulated upper deck conditions in a cargo oil tank （COT） of tankers. The results indicate that Al promotes the formation of Al2O3 in the inner rust layer. The test steel mainly contains spheroidized CaS-Al2O3-MnS complex inclusions after Ca treatment. Al and CaS-Al2O3-MnS complex inclusions help to form a dense inner rust layer in the inner region of the rust that corresponding to the interface of inner rust layer and substrate with an enrichment layer of Al and Ca. In the inner rust layer， Al is present as Al2O3， and Ca is present as CaO， CaS and CaCO3.
刘 健，李 灏. Al及Ca处理对低合金钢在上甲板环境中锈层的影响[J]. , 2018, 37(03): 11-17.
LIU Jian，LI Hao. Effect of Al and Ca treatment on rust layer of low alloy steel on upper deck conditions. , 2018, 37(03): 11-17.
Yoshikawa M. Corrosion of cargo oil tanks of very large crude-oil carrier tankers[J]. Corrosion Engineering, 2004, 53(8): 433-448.
[2]
Zayed A, Garbatov Y, Soares C G. Corrosion modelling of single hull crude oil tanker subjected to multiple deterioration environments[C]//ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering. American Society of Mechanical Engineers, 2007: 567-578.
Su H, Luo X B, Yang C F, et al. Effects of Cu on Corrosion Resistance of Low Alloyed Steels in Acid Chloride Media[J]. Journal of Iron and Steel Research, International, 2014, 21(6):619-624.
Szklarska-Smialowska Z. Pitting corrosion of metals[M]. National Association of Corrosion Engineers, 1986.
[11]
Ma Yue, Pan Tao, Su Hang, et al. Effect of sulfur contents on fracture toughness of wheel steels for high speed train. Journal of Iron and Steel Research International, 2011, S1-1, 18: 366-371
[12]
Yamamoto M, Kihira H, Usami A, et al. Corrosion Resistance of Ca-Ni Added Weathering Steel in Marine Environment[J]. Tetsu-to-Hagane, 1998, 84(3):36-41.
[13]
Kim K Y, Hwang Y H, Yoo J Y. Effect of Silicon Content on the Corrosion Properties of Calcium-modified Weathering Steel in a Chloride Environment[J]. Corrosion, 2002, (58)7: 570-585.
[14]
Kim K Y, Chung Y H, Hwang Y H, et a1. Effect of Calcium Modification on the Electrochemical and Corrosion Properties of Weathering Steel[J]. Corrosion, 2002, (58)6: 479-489.
[15]
Guedes I C, Aoki I V, Carmezim M J, et al. The influence of copper and chromium on the semiconducting behaviour of passive films formed on weathering steels[J]. Thin solid films, 2006, 515(4): 2167-2172.
[16]
Wang Z, Liu J, Wu L, et al. Study of the corrosion behavior of weathering steels in atmospheric environments[J]. Corrosion Science, 2013, 67: 1-10.
[17]
Kamimura T, Stratmann M. The influence of chromium on the atmospheric corrosion of steel[J]. Corrosion Science, 2001, 43(3): 429-447.
[18]
Zhou Y, Chen J, Xu Y, et al. Effects of Cr, Ni and Cu on the corrosion behavior of low carbon microalloying steel in a Cl? containing environment[J]. Journal of Materials Science & Technology, 2013, 29(2): 168-174.
[19]
Moulder J F, Sticker W F, Sobol P E, Bomben K D. Handbook of X-ray Photoelectron Spectroscopy, Perkin–Elmer Corporation, United States of America, 1992.
[20]
Choi Y S, Shim J J, Kim J G. Effects of Cr, Cu, Ni and Ca on the corrosion behavior of low carbon steel in synthetic tap water[J]. Journal of alloys and compounds, 2005, 391(1): 162-169.
2018, Vol. 37 
