耐蚀钢筋20MnSiCrV在氯盐环境下的腐蚀行为

doi:10.11902/1005.4537.2014.197

中国腐蚀与防护学报

2015, Vol. 35

Issue (5): 461-466 DOI: 10.11902/1005.4537.2014.197

本期目录 | 过刊浏览

耐蚀钢筋20MnSiCrV在氯盐环境下的腐蚀行为

张建春(

),麻晗,左龙飞,李阳

Corrosion Behavior of 20MnSiCrV Corrosion Resistant Rebar in Chloride Containing Environment

Jianchun ZHANG(

),Han MA,Longfei ZUO,Yang LI

Institute of Research of Iron & Steel, Shasteel, Zhangjiagang 215625, China

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摘要:

通过盐雾实验、电化学阻抗谱和极化曲线研究了耐蚀钢筋20MnSiCrV和普通钢筋20MnSiV在氯盐环境下的耐蚀性能和腐蚀敏感性,利用SEM,EMPA线扫描和XRD分析锈层形貌、组成及合金元素的分布。结果表明,耐蚀钢筋的耐Cl^-腐蚀承受能力较高,为普通钢筋的1.5倍；腐蚀速率和腐蚀坑深度分别为普通钢筋的58%和74%；两种钢表面锈层主要成分均为Fe₃O₄,α-FeOOH和γ-FeOOH,其中耐蚀钢筋的锈层为双层结构,Cr和Si明显富集在内层,有利于形成致密内锈层,提高钢筋的耐腐蚀性能。

关键词 ：耐蚀钢筋, 电化学阻抗谱, 腐蚀敏感性, 内锈层

Abstract：

Corrosion resistance and corrosion sensitivity to chloride containing environment of 20MnSiCrV steel and 20MnSiV steel was comparatively investigated by salt-spray corrosion test with 3.5%NaCl solution, as well as electrochemical impedance spectroscopy and polarization curve measurements in chloride containing alkaline solutions. The formed corrrosion product scales were characterized by SEM, EPMA and XRD. The results show that the corrosion resistance to Cl^- of 20MnSiCrV steel was 1.5 times over that of 20MnSiV steel. The average corrosion rate and depth of corrosion pits of 20MnSiCrV steel were 58% and 74% of those of 20MnSiV steel, respectively. The major components of corrosion products of the two steels were Fe₃O₄, α-FeOOH and γ-FeOOH. Corrosion scale of 20MnSiCrV steel can be differentiated into an inner layer and an outer layer. The inner layer is enriched in Cr and Si, thereby beneficial to the corrosion resistance of the steel.

Key words： corrosion resistant rebar electrochemical impedance spectroscopy corrosion sensitivity inner rust layer

ZTFLH:

基金资助:江苏省产学研联合创新资金―前瞻性联合研究项目 (BY2013091) 资助

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引用本文:

张建春, 麻晗, 左龙飞, 李阳. 耐蚀钢筋20MnSiCrV在氯盐环境下的腐蚀行为[J]. 中国腐蚀与防护学报, 2015, 35(5): 461-466.
Jianchun ZHANG, Han MA, Longfei ZUO, Yang LI. Corrosion Behavior of 20MnSiCrV Corrosion Resistant Rebar in Chloride Containing Environment. Journal of Chinese Society for Corrosion and protection, 2015, 35(5): 461-466.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2014.197 或 https://www.jcscp.org/CN/Y2015/V35/I5/461

表1 实验钢的化学成分

图1 两种钢分别在不含Cl-和含0.2,0.4,0.6 mol/L Cl-的饱和Ca(OH)2溶液中的极化曲线

图2 两种钢在3.5%NaCl溶液中浸泡不同时间后的极化曲线

图3 两种钢在3.5%NaCl溶液中浸泡不同时间后的Nyquist阻抗谱

图4 两种钢在盐雾实验后的增重量

图5 盐雾实验后两种钢样品表面的腐蚀坑深度

图6 两种钢在168 h盐雾实验后的表面形貌

图7 两种钢在168 h盐雾实验后锈层的剖面形貌

图8 两种钢盐雾实验后腐蚀产物的XRD谱

图9 CR钢盐雾实验后锈层中元素分布

[1]	Zhu X R,Wang X R. Corrosion and Protection of Metals in Marine Environment[M]. Beijing: National Defense Industry Press, 1999 (朱相荣,王相润. 金属材料的海洋腐蚀与防护[M]. 北京: 国防工业出版社, 1999)
[2]	Ma H, Wang S F. Development and practice of energy saving steel reinforcing bar and wire[J]. Heat Treat. Met., 2013, 38(7): 1 (麻晗, 王世芳. 节能型钢筋、线材的研发与生产实践[J]. 金属热处理, 2013, 38(7): 1)
[3]	Wang S J. Giving full play to the potential of enterprise development and developing low cost earthquake and corrosion resistant steel [N]. World Metals, 2013-5-21 (B16) (王市均. 充分发挥企业研发潜力,开发低成本抗震耐蚀钢筋 [N]. 世界金属导报, 2013-5-21(B16))
[4]	Ge Y,Zhu X C,Li Y. Corrosion Protection of Reinforced Concrete Structures in Bridge[M]. Beijing: Chemical Industry Press, 2011 (葛燕,朱锡昶,李岩. 桥梁钢筋混凝土结构防腐蚀[M]. 北京: 化学工业出版社, 2011)
[5]	Zuo L F, Ma H, Huang W K, et al. Development of 400 MPa-grade seawater corrosion resistant rebar in sha-steel[J]. Steel Roll., 2014, 31: 58 (左龙飞, 麻晗, 黄文克等. 沙钢400 MPa级耐海水腐蚀螺纹钢的开发[J]. 轧钢, 2014, 31: 58)
[6]	Zhang J C, Huang W K, Ma H. Microstructure and properties of 20MnSiCrV corrosion resistant rebar in continuous cooling transformation[J]. Hot Work. Technol., 2014, 43(6): 91 (张建春, 黄文克, 麻晗. 耐蚀钢筋20MnSiCrV的连续冷却转变组织与性能[J]. 热加工工艺, 2014, 43(6): 91)
[7]	Yamashita M, Miyuki H, Matsuda Y, et al. The long term growth of the protective rust layer formed on weathering steel by atmospheric corrosion during a quarter of a century[J]. Corros. Sci., 1994, 36(2):283
[8]	Stratmann M, Bohnenkamp K, Engell H J. An electrochemical study of phase-transition in rust layers[J]. Corros. Sci., 1983, 23(9): 969
[9]	Deliyanni E A, Bakoyannakis D N, Zouboulis A I, et al. Akaganeite-type β-FeOOH nanocrystals: Preparation and characterization[J]. Microporous Mesporous Mater., 2001, 42(1): 49
[10]	Dillmann Ph, Mazaudier F, Hoerle S. Advances in under- standing atmospheric corrosion of iron. I. Rust characterization of ancient ferrous artefacrs exposed to indoor atmospheric corrosion[J]. Corros. Sci., 2004, 46(6): 1401
[11]	Nishimura T, Katayama H, Noda K. Electrochemical behavior of rust formed on carbon steel in a wet/dry environment containing chloride ions[J]. Corrosion, 2000, 56(9): 935
[12]	Maansfeld F. Corrosion Mechanisms [M]. New York: Marcel Dekker, Inc., 1986
[13]	Matsushima I,Jin Y K. Low-alloy Corrosion Resistant Steels[M]. Beijing: Metallurgical Industry Press, 2004 (松岛岩. 靳裕康. 低合金耐蚀钢[M]. 北京: 冶金工业出版社, 2004)
[14]	Yamashita M, Nagano H, Misawa T, et al. Structure of protective rust layers formed on weathering steel by long term exposure in the industrial atmospheres of Japan and North America[J]. ISIJ Int., 1998, 38(3): 285
[15]	Sei J, Cook D C, Townsend H E. Atmosphere corrosion of different steel in marine, ruraland industrial environments[J]. Corros.Sci., 1999, 41: 1687
[16]	Zhang M Y. Overview of the air and sea water corrosion corrosion resistant steel in foreign countries[J]. Shanghai Met., 1982, 3(4): 14 (张明洋. 国外耐大气、海水腐蚀用钢概述[J]. 上海金属, 1982, 3(4): 14)

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