Q235钢在海南濒海同区域户外暴晒环境和棚下环境的腐蚀行为

doi:10.11902/1005.4537.2022.286

中国腐蚀与防护学报

2023, Vol. 43

Issue (3): 677-682 CSTR: 32134.14.1005.4537.2022.286 DOI: 10.11902/1005.4537.2022.286

研究报告

本期目录 | 过刊浏览

Q235钢在海南濒海同区域户外暴晒环境和棚下环境的腐蚀行为

王洪伦¹, 杨华¹, 蔡辉¹, 李博文²(

)

^1.西昌卫星发射中心西昌 615000
^2.中国科学院金属研究所沈阳 110016

Corrosion Behavior of Q235 Steel by Outdoor Exposure and under Shelter in Atmosphere of Hainan Coastal

WANG Honglun¹, YANG Hua¹, CAI Hui¹, LI Bowen²(

)

^1.Xichang Satellite Launch Center, Xichang 615000, China
^2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

全文: PDF(5380 KB) HTML

摘要:

采用宏观形貌、截面微观形貌、失重分析、X射线衍射 (XRD)、电化学测试方法，研究了Q235钢在海南濒海大气气候下同区域的户外暴晒和棚下环境的腐蚀行为。研究表明：在户外暴晒环境和棚下环境Q235钢表面腐蚀产物随着时间增加颜色逐渐变深，棚下环境变深速度较户外暴晒环境快；腐蚀产物逐渐由FeOOH向Fe₂O₃和Fe₃O₄转变，户外暴晒环境转变趋势慢于棚下环境，导致腐蚀产物虽厚但多裂纹和孔隙，对基体保护性降低，腐蚀速率增大；失重分析显示户外暴晒环境腐蚀速率远高于棚下环境，年均腐蚀失重率约为棚下环境的两倍；电化学测试显示户外暴晒环境下的R_p小于棚下环境的，说明户外暴晒环境材料腐蚀倾向大于棚下环境的。分析主要原因是户外暴晒环境空气湿度相对较低，日照充足，盐浓度较大，在样品表面残留较高的盐浓度，导致腐蚀加剧。

关键词 ： Q235钢, 户外暴晒环境, 棚下环境, 腐蚀行为

Abstract：

The corrosion behavior of Q235 steel was studied by outdoor exposure and under the shelter of an awning respectively in the same atmosphere at one test site located at the coastal of Hainan island in the South China Sea by means of mass loss method, electrochemical test methods, macro-morphology, cross-sectional micro-morphology, and X-ray diffractometer (XRD) etc. The results showed that the color of corrosion products on the surface of Q235 steel by outdoor and under the shelter all gradually darkens with time, and however the darkening rate for the steel under the shelter was faster than that by outdoor exposure. The corrosion products gradually changed from FeOOH to Fe₂O₃ and Fe₃O₄.The transformation trend of the steel by outdoor exposure was slower than that under the shelter. As a result, a thick corrosion product with many cracks and pores may emerge, therefore its protectiveness for the substrate might be deteriorated, so that the corrosion rate of the steel was rose. The mass loss analysis showed that the corrosion rate for the steel by outdoor exposure was much higher than that under the shelter, and the annual average mass loss rate of the former was about 2 times of that the later. The results of electrochemical test show that the R_p of the steel by outdoor exposure is less than that under the shelter, which indicates that the corrosion tendency of the steel by outdoor exposure is greater than that under the shelter. The main reason is that the air humidity is relatively low, the sunlight is sufficient, the salt concentration is higher, and the residual salt concentration on the surface of the steel is also higher by the outdoor exposure, which leads to the deterioration of the corrosion condition.

Key words： Q235 steel outdoor exposure environment shed environment corrosion behavior

收稿日期: 2022-09-15 32134.14.1005.4537.2022.286

ZTFLH:

TG172.3

通讯作者: 李博文，E-mail：bwli@imr.ac.cn，研究方向为腐蚀监检测技术研究与应用

Corresponding author: LI Bowen, E-mail: bwli@imr.ac.cn

作者简介: 王洪伦，男，1981年生，博士，高级工程师

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	王洪伦
	杨华
	蔡辉
	李博文
44.8K

引用本文:

王洪伦, 杨华, 蔡辉, 李博文. Q235钢在海南濒海同区域户外暴晒环境和棚下环境的腐蚀行为[J]. 中国腐蚀与防护学报, 2023, 43(3): 677-682.
WANG Honglun, YANG Hua, CAI Hui, LI Bowen. Corrosion Behavior of Q235 Steel by Outdoor Exposure and under Shelter in Atmosphere of Hainan Coastal. Journal of Chinese Society for Corrosion and protection, 2023, 43(3): 677-682.

链接本文:

https://www.jcscp.org/CN/10.11902/1005.4537.2022.286 或 https://www.jcscp.org/CN/Y2023/V43/I3/677

图1 户外暴晒环境下4个周期样品的宏观形貌

图2 Q235钢在同区域不同环境下12个月后截面腐蚀形貌

表1 Q235钢各实验组平均失重及腐蚀深度

图3 Q235钢户外环境与棚下环境腐蚀失重及腐蚀深度变化

图4 Q235钢两种环境下各周期腐蚀产物成分

图5 两种典型环境下Q235钢的Nyquist图及拟合等效电路

图6 Q235钢在两种环境中的Rp

1	Hou B R. The Cost of Corrosion in China [M]. Beijing: Science Press, 2017
1	侯保荣. 中国腐蚀成本 [M]. 北京: 科学出版社, 2017
2	Cao C N. Natural Environmental Corrosion of Chinese Materials [M]. Beijing: Chemical Industry Press, 2005
2	曹楚南. 中国材料的自然环境腐蚀 [M]. 北京: 化学工业出版社, 2005
3	Tian Q Q, Hai C, Wang Z G, et al. Study on corrosion behavior of Q235 carbon steel in typical atmospheric pollution environment in Leshan, Sichuan province [J]. J. Southwest Minzu Univ. (Nat. Sci. Ed.), 2020, 46: 478
3	田倩倩, 海潮, 王志高等. Q235碳钢在四川典型大气污染环境中的腐蚀行为研究 [J]. 西南民族大学学报(自然科学版), 2020, 46: 478
4	Gao Y, Huang Y H, Zheng Z J, et al. Atmospheric corrosion behavior of Q235 steel exposed on transmission tower sites of Guangdong province [J]. J. South China Univ. Technol. (Nat. Sci. Ed.), 2018, 46(7): 39
4	高岩, 黄殷辉, 郑志军等. Q235钢在广东省输电杆塔现场的大气腐蚀行为 [J]. 华南理工大学学报(自然科学版), 2018, 46(7): 39
5	Ma Y T, Li Y, Wang F H. Corrosion of low carbon steel in atmospheric environments of different chloride content [J]. Corros. Sci., 2009, 51: 997 doi: 10.1016/j.corsci.2009.02.009
6	Mahmoud M G, Wang R, Kato M, et al. Influence of ultraviolet light irradiation on corrosion behavior of weathering steel with and without TiO₂-coating in 3 mass% NaCl solution [J]. Scr. Mater., 2005, 53: 1303 doi: 10.1016/j.scriptamat.2005.07.039
7	Yu G C, Wang Z Y, Chen H C. Effect of weather factors for Q235 steel corrosion in Hainan [J]. Corros. Prot., 2000, 21: 531
7	于国才, 王振尧, 陈鸿川. 海南地区气象因素对Q235钢腐蚀的影响 [J]. 腐蚀与防护, 2000, 21: 531
8	Song Z B, Wang Z C, Wang J G, et al. Atmospheric corrosion behavior of Q235 steel in northern Hebei region [J]. Mater. Mechan. Eng., 2021, 45(6): 46
8	宋子博, 王智春, 王建国等. Q235钢在冀北地区的大气腐蚀行为 [J]. 机械工程材料, 2021, 45(6): 46 doi: 10.11973/jxgccl202106008
9	Liu Y W. Corrosion behavior and mechanism of carbon steel at Nansha lslands marine atmospheric environment [D]. Hefei: University of Science and Technology of China, 2020
9	刘雨薇. 碳钢在南沙大气环境中的腐蚀行为与机理研究 [D]. 合肥: 中国科学技术大学, 2020
10	Wu G, Xu S, Zhang N, et al. Corrosion perforation causes of bottom plate for Q235B steel crude oil storage tank [J]. Phys. Test. Chem. Anal. (Part A Phys. Test.), 2021, 57(2): 57
10	武刚, 徐帅, 张楠等. Q235B钢原油储罐底板腐蚀穿孔原因 [J]. 理化检验-物理分册, 2021, 57(2): 57
11	Antunes R A, Costa I, De Faria D L A. Characterization of corrosion products formed on steels in the first months of atmospheric exposure [J]. Mater. Res., 2003, 6: 403 doi: 10.1590/S1516-14392003000300015
12	Wang C, Cao G W, Pan C, et al. Atmospheric corrosion of carbon steel and weathering steel in three environments [J]. J. Chin. Soc. Corros. Prot., 2016, 36: 39
12	汪川, 曹公旺, 潘辰等. 碳钢、耐候钢在3种典型大气环境中的腐蚀规律研究 [J]. 中国腐蚀与防护学报, 2016, 36: 39
13	Chen X X, Guan L, Li W J, et al. Kinetic behavior of Q235 steel at initial stage of corrosion in simulated atmosphere [J]. Corros. Prot., 2021, 42(5): 18
13	陈心欣, 关蕾, 李万江等. 模拟大气中Q235钢的早期腐蚀动力学行为 [J]. 腐蚀与防护, 2021, 42(5): 18
14	Xue F, Liu L Y, Tan L. Aerobic corrosion process of Q235 steel in NaHCO₃ solutions [J]. J. Chin. Soc. Corros. Prot., 2022, 42: 771
14	薛芳, 刘两雨, 谭龙. Q235钢在不同浓度碳酸氢钠溶液中的有氧腐蚀行为 [J]. 中国腐蚀与防护学报, 2022, 42: 771
15	Wang Z G, Hai C, Jiang J, et al. Corrosion behavior of Q235 steels in atmosphere at Deyang district for one Year [J]. J. Chin. Soc. Corros. Prot., 2021, 41: 871
15	王志高, 海潮, 姜杰等. Q235钢在德阳大气环境中腐蚀行为研究 [J]. 中国腐蚀与防护学报, 2021, 41: 871 doi: 10.11902/1005.4537.2020.180
16	Corvo F, Perez T, Dzib L R, et al. Outdoor-indoor corrosion of metals in tropical coastal atmospheres [J]. Corros. Sci., 2008, 50: 220 doi: 10.1016/j.corsci.2007.06.011
17	Guerra J C, Castañeda A, Corvo F, alet, Atmospheric corrosion of low carbon steel in a coastal zone of Ecuador : Anomalous behavior of chloride deposition versus distance from the sea [J]. Mater. Corros., 2019, 70: 444 doi: 10.1002/maco.201810442
18	Wan Y, Song F L, Li L J. Corrosion characteristics of carbon steel in simulated marine atmospheres [J]. J. Chin. Soc. Corros. Prot., 2022, 42: 851
18	万晔, 宋芳龄, 李立军. 基于海洋大气环境因素影响下的碳钢腐蚀特征研究 [J]. 中国腐蚀与防护学报, 2022, 42: 851
19	Yang J, Wang Z B, Qiao Y X, et al. Synergistic effects of deposits and sulfate reducing bacteria on the corrosion of carbon steel [J]. Corros. Sci., 2022, 199: 110210 doi: 10.1016/j.corsci.2022.110210

[1]	钟嘉欣, 关蕾, 李雨, 黄家勇, 石磊. 2xxx系铝合金第二相对搅拌摩擦焊接头腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2023, 43(6): 1247-1254.
[2]	刘浩, 郭晓开, 王维, 伍廉奎, 曹发和, 孙擎擎. 超声喷丸对7075铝合金棒材组织结构与性能的影响[J]. 中国腐蚀与防护学报, 2023, 43(6): 1293-1302.
[3]	何静, 于航, 傅梓瑛, 岳鹏辉. 水溶性缓蚀剂对建筑管道用Q235钢腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2023, 43(5): 1041-1048.
[4]	胡杰珍, 上官桔钰, 邓培昌, 冯绮蓝, 王贵, 王沛林. 基于阵列电极技术研究藤壶附着对Q235钢腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2023, 43(5): 1145-1150.
[5]	任黄威, 廖伯凯, 崔琳晶, 项腾飞. 液膜厚度对固态超滑表面在薄液膜下腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2023, 43(4): 862-870.
[6]	黄家针, 黄涛, 杨丽景, 季灯平, 丁贺, 韦一, 宋振纶. SAF 2304双相不锈钢电化学性能及其近海腐蚀行为[J]. 中国腐蚀与防护学报, 2023, 43(3): 630-638.
[7]	张全福, 宋蕾, 王建, 郭振宇, 任乃栋, 赵建琪, 武维康, 程伟丽. 挤压态低合金化Mg-0.5Bi-0.5Sn-0.5Ca合金的力学性能及腐蚀行为研究[J]. 中国腐蚀与防护学报, 2023, 43(2): 428-434.
[8]	万红霞, 刘重麟, 王子安, 刘茹, 陈长风. P110S油套管在微含硫环境中的腐蚀行为研究[J]. 中国腐蚀与防护学报, 2023, 43(2): 371-376.
[9]	张佳欢, 崔中雨, 范林, 孙明先. 热处理工艺对Ti6321合金腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2023, 43(1): 152-158.
[10]	赵伊, 曹京宜, 方志刚, 冯亚菲, 韩卓, 孟凡帝, 王昭东, 王福会. A517Gr.Q海工钢在模拟海洋飞溅区的腐蚀行为研究[J]. 中国腐蚀与防护学报, 2022, 42(6): 921-928.
[11]	黄连鹏, 张欣, 熊伊铭, 陶嘉豪, 王泽华, 周泽华. 不同磁场强度下铝镁合金腐蚀行为研究[J]. 中国腐蚀与防护学报, 2022, 42(5): 833-838.
[12]	薛芳, 刘两雨, 谭龙. Q235钢在不同浓度碳酸氢钠溶液中的有氧腐蚀行为[J]. 中国腐蚀与防护学报, 2022, 42(5): 771-778.
[13]	梁志远, 徐一鸣, 王硕, 李玉峰, 赵钦新. 高等级合金CO₂环境下的腐蚀行为研究[J]. 中国腐蚀与防护学报, 2022, 42(4): 613-620.
[14]	杨永, 张庆保, 朱万成, 罗艳龙. 磁场对NaCl溶液中X52管线钢腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2022, 42(3): 501-506.
[15]	张克乾, 张华, 李扬, 洪业, 贺诚. 焦耳陶瓷电熔炉中电极材料腐蚀问题的研究现状[J]. 中国腐蚀与防护学报, 2022, 42(3): 458-463.

Viewed

Full text

Abstract

Cited

Shared

Discussed