含Nb耐候桥梁钢在模拟工业大气环境中的腐蚀行为
Corrosion Behavior of Weathering Bridge Steel Containing Niobium in Simulated Industrial Atmospheric Environment
摘 要
采用失重分析、电子探针分析、X射线衍射分析及电化学测试等对含Nb耐候桥梁钢在模拟工业大气环境中的腐蚀行为进行了研究，并着重研究了Nb对耐候桥梁钢腐蚀机制的影响。结果显示：含Nb耐候桥梁钢的腐蚀动力学曲线符合幂函数规律，这表明增加Nb含量可以提高腐蚀初期桥梁钢的耐蚀性，腐蚀后期，增加Nb含量对锈层保护性的影响则减弱，从减缓材料腐蚀发展趋势的角度看Nb的作用并不显著。
耐候桥梁钢
工业大气
干湿交替
腐蚀行为
Nb
weathering bridge steel
industrial atmosphere
wet-dry cycle
corrosion behavior
Abstract
Using weightlessness analysis, electron probe analysis, X-ray diffraction analysis and electrochemical testing, the corrosion behavior of a Nb-containing weathering bridge steel in a simulated industrial atmospheric environment was studied, and the effect of Nb on the corrosion mechanism of weathering bridge steel was studied. The results showed that the corrosion kinetics curve of the weathering bridge steel containing Nb had a compound power function law, indicating that increasing the Nb content could improve the corrosion resistance of the bridge steel in the early stage of corrosion, and in the later stage of corrosion, increasing the Nb content had a relatively weak effect on the protection of the rust layer. From the perspective of slowing down the development trend of material corrosion, the effect of Nb was not significant.
中图分类号 TG174 DOI 10.11973/fsyfh-202202004
所属栏目 试验研究
基金项目 交通运输行业重点科技项目（2019-MS2-046）；中交第一公路勘察设计研究院有限公司科技研发基金（KCJJ2019-09）
收稿日期 2020/6/15
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引用该论文: LI Lin,CHEN Yiqing,ZHONG Bin,AI Fangfang,GAO Peng,SU Xiandong,YANG Ying. Corrosion Behavior of Weathering Bridge Steel Containing Niobium in Simulated Industrial Atmospheric Environment[J]. Corrosion & Protection, 2022, 43(2): 22
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参考文献
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【3】曾荣昌. 桥梁的腐蚀与防护[J]. 材料保护, 2000, 33(10):38-40.
【4】刘玉擎, 陈艾荣.耐候钢桥的发展及其设计要点[J].桥梁建设, 2003, 33(5):39-41, 45.
【5】岳远杰, 唐荻, 武会宾, 等. Nb对高含Cl-强酸性溶液环境中低合金钢腐蚀性能的影响[J]. 材料工程, 2015, 43(6):14-20.
【6】王子豪, 黄运华, 李佳, 等. Nb对X80钢焊接热影响区在模拟海水中腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2016, 36(6):604-610.
【7】王淑兰, 杨慧, 庄立军. 低碳铌微合金钢在海水中的腐蚀规律[J]. 钢铁研究学报, 2007, 19(1):53-56.
【8】王春明, 吴杏芳, 刘玠, 等. X70针状铁素体管线钢析出相[J]. 北京科技大学学报, 2006, 28(3):253-258.
【9】ANDRADE H L, AKBEN M G, JONAS J J. Effect of molybdenum, niobium, and vanadium on static recovery and recrystallization and on solute strengthening in microalloyed steels[J]. Metallurgical Transactions A, 1983, 14(10):1967-1977.
【10】LEE W B, HONG S G, PARK C G, et al. Influence of Mo on precipitation hardening in hot rolled HSLA steels containing Nb[J]. Scripta Materialia, 2000, 43(4):319-324.
【11】LEE W B, HONG S G, PARK C G, et al. Carbide precipitation and high-temperature strength of hot-rolled high-strength, low-alloy steels containing Nb and Mo[J]. Metallurgical and Materials Transactions A, 2002, 33(6):1689-1698.
【12】THILLOU V, HUA M, GARCIA C I, et al. Precipitation of NbC and effect of Mn on the strength properties of hot strip HSLA low carbon steel[J]. Materials Science Forum, 1998, 284/285/286:311-318.
【13】梁金明, 唐荻, 武会宾, 等. 基于IMO标准的E36级低合金船板钢货油舱上甲板环境全周期腐蚀行为与机理[J]. 材料研究学报, 2014, 28(6):433-442.
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【15】李琳, 钟彬, 高鹏, 等. Q690qENH钢暴晒两年的大气腐蚀性能[J]. 腐蚀与防护, 2015, 36(9):869-872, 897.
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【17】董方, 卜凡超, 郄俊懋. Nb对09CuPRe耐候钢在模拟工业大气腐蚀环境下耐蚀性的影响[J]. 材料保护, 2014, 47(7):57-59, 8-9.
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