纯水薄液膜下Q235钢潮湿时间的影响因素和腐蚀速度的磁阻研究

中国腐蚀与防护学报

2009, Vol. 29

Issue (3): 161-166

研究报告

本期目录 | 过刊浏览

纯水薄液膜下Q235钢潮湿时间的影响因素和腐蚀速度的磁阻研究

唐子龙;宋鑫;张义萍

天津大学材料科学与工程学院天津 300072

CONTROL FACTORS OF TIME OF WETNESS AND IRP CORROSION RATE FOR Q235 STEEL UNDER PURE WATER THIN FILM

TANG Zilong; SONG Xin; ZHANG Yipin

School of Materials Science and Engineering; Tianjin University; Tianjin 300072

全文: PDF(559 KB)

摘要:

以温度、相对湿度和浸润时间为影响因素，研究了纯水薄液膜下Q235钢潮湿时间的影响规律，结合磁阻探头技术和作者提出的积分过滤算法（IFA），分析了腐蚀早期阶段的腐蚀速度变化规律。首先将数据挖掘技术中的标准化处理引入了多变量影响因素分析，显著提高了结果的准确性。研究表明，温度和湿度对碳钢潮湿时间的影响远较浸润时间为大，且温度的影响与试样表面有无腐蚀产物相关。随着温度的提高，温度对清洁试样潮湿时间的影响逐渐加大，大致在20 ℃左右出现明显的转折；湿度对清洁试样潮湿时间的影响则随着温度的升高逐渐下降。通过磁阻探头技术计算得到的腐蚀速度的聚类分析，以20 ℃和相对湿度80%为分界点，大致将腐蚀速度分为两个区，即低和高腐蚀速度区，两区的腐蚀速度相差约4 倍左右。在低腐蚀速度区，实验观察到腐蚀初期可标识腐蚀历程转变的磁阻探头寿命单元（PLU）平台，而相应PLU平台在高腐蚀速度区则不明显，对相关的腐蚀机理作了初步的讨论。

关键词 ：薄液膜, Q235钢, 早期腐蚀, 磁阻

Abstract：

With a series of factors such as time of immersion (TOI), temperature (Temp) and relative humidity (RH), the time of wetness (TOW) of Q235 steel covered by pure water thin film is investigated. The effect of the three factors on corrosion rate is also studied by Inductive Resistance Probe (IRP) measurement and Integration Filter Algorithm (IFA) previously implemented by the author. Standardization protocol (data mining technique) for multivariate analysis of variance is introduced in order to improve the accuracy of TOW linear regression model. The results prove the successful adoption of standardization protocol. Temperature plays a more important role than the humidity in shortening TOW for clean samples at elevated temperature. Around 20 ℃, a significant change of temperature effect on TOW is observed. IRP measurement plus IFA corrosion rate calculation confirms the judgment on temperature effect. Corrosion rate could be clustered into two groups( high and low zone) around the thresholds of 20 ℃ and RH 80% based on cluster analysis on corrosion rate. Quantitative evaluation on corrosion rate between high and low corrosion rate zones shows 4 times difference. Plateau in the very early stage of PLU movement over time of low corrosion rate zone is recorded at first time. However, no PLU plateau is observed for system at higher temperature than 20 ℃ and/or higher RH than 80%. A primary reasoning about this PLU plateau is assumed to be bounded with corrosion rate which is the function of temperature and humidity. This interesting and impressive PLU plateau could indicate the possible composition and/or structure transformation of corrosion product layer under thin liquid film and deserves more effort in future work.

Key words： thin liquid film Q235 steel corrosion initial stage inductive resistance probe (IRP)

收稿日期: 2007-11-19

ZTFLH:

TG142

基金资助:

国家自然科学基金资助项目(No.50671072)

通讯作者: 唐子龙 E-mail: zlt633@tju.edu.cn

Corresponding author: Zilong TANG E-mail: zlt633@tju.edu.cn

作者简介: 唐子龙，男，1968年生，副教授。研究方向为腐蚀电化学，腐蚀信息学和表面改性

	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
	唐子龙
	宋鑫
	张义萍
44.8K

引用本文:

唐子龙宋鑫张义萍. 纯水薄液膜下Q235钢潮湿时间的影响因素和腐蚀速度的磁阻研究[J]. 中国腐蚀与防护学报, 2009, 29(3): 161-166.
TANG Zi-Long, SONG Xin, ZHANG Xi-Ping. CONTROL FACTORS OF TIME OF WETNESS AND IRP CORROSION RATE FOR Q235 STEEL UNDER PURE WATER THIN FILM. J Chin Soc Corr Pro, 2009, 29(3): 161-166.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2009/V29/I3/161

[1] Veieva L, Maldonado L. Classification of atmospheric corrosivity in humid tropical climates [J]. Bri. Corros.J. 1998, 33：53-57
[2] Ramanauskas R, Quintana P, Bartolo-Perez P, et al.Effect of corrosion products on the atmospheric corrosion of electrodeposited zinc and zinc alloy coatings[J].Corrosion, 2000, 56: 588-597
[3] Lobnig R, Sinclair J D, Unger M, et al. Mechanism of atmospheric corrosion of copper in the presence of ammonium sulfate particles - Effect of surface particle concentration[J]. J. Electrochem. Soc., 2003, 150: A835-A849
[4] Rodrguez J J S, Hernandez F J S, Gonzalez J E G. The effect of environmental and meteorological variables on atmospheric corrosion of carbon steel, copper, zinc and aluminium in a limited geographic zone with different types of environment [J]. Corros.Sci., 2003, 45: 799-815.
[5] Mendoza A, F. Corvo. Outdoor and indoor atmospheric corrosion of non-ferrous metals[J]. Corros.Sci., 2000, 42: 1123-1147
[6] Tang Q H. The study of TOW distribution in room temperature of Jiangjin site [J]. Environ.Technique, 2003，4: 7-9
(唐其环. 江津润湿时间的温度分布研究[J]. 环境技术, 2003, 4：7-9)
[7]} Cole I S, Holgate R, Kao P, et al. The rate of drying of moisture from a metal surface and its implication for time of wetness[J].Corros. Sci., 1995, 37: 455
[8] Cole I S, Ganther W D, Sinclair J D. A study of the wetting of metal surfaces in order to understand the processes controlling atmospheric corrosion [J]. J.Electrochem. Soc., 2004, 151: B627-B635
[9] Cole I S, Paterson D A, Ganther W D. Holistic model for atmospheric corrosion Part 1-Theoretical framework for production, transportation and deposition of marine salts [J]. Corros. Eng. Sci. Technol., 2003, 38: 129-134.
[10] Tang Z L, Song S Z. Numeric analysis of inductive resistance probe and application in atmospheric corrosion[J]. J. Chem. Ind. Eng. (China);2007, 58: 698-703
(唐子龙, 宋诗哲. 磁阻探头系统腐蚀速率解析及在大气腐蚀中的应用[J]. 化工学报, 2007,58：698-703)\par

[1]	唐荣茂, 朱亦晨, 刘光明, 刘永强, 刘欣, 裴锋. Q235钢/导电混凝土在3种典型土壤环境中腐蚀的灰色关联度分析[J]. 中国腐蚀与防护学报, 2021, 41(1): 110-116.
[2]	王霞,任帅飞,张代雄,蒋欢,古月. 豆粕提取物在盐酸中对Q235钢的缓蚀性能[J]. 中国腐蚀与防护学报, 2019, 39(3): 267-273.
[3]	林修洲, 杨丽, 梅拥军, 郑兴文, 罗淑文, 崔学军. 飞机起落架镀镉4130钢在甲酸钾溶液薄液膜下腐蚀电化学行为研究[J]. 中国腐蚀与防护学报, 2017, 37(6): 567-574.
[4]	张新新,高志明,胡文彬,伍志鹏,韩连恒,卢丽花,修妍,夏大海. Q235钢在薄液膜下腐蚀行为与图像信息的相关性研究[J]. 中国腐蚀与防护学报, 2017, 37(5): 444-450.
[5]	赵苇杭, 王浩伟, 蔡光义, 董泽华. AA6061铝合金在含盐薄液膜下的局部腐蚀与缓蚀机理[J]. 中国腐蚀与防护学报, 2017, 37(4): 366-374.
[6]	郑珉,黄彦良,西方笃,路东柱,张杰,王秀通,温娟,李玉红,刘月妙. Q235钢在甘肃北山地区地下水模拟液及高压实膨润土环境下的腐蚀行为[J]. 中国腐蚀与防护学报, 2016, 36(5): 398-406.
[7]	李阳恒,左禹,唐聿明,赵旭辉. 应变作用下Q235碳钢在NaHCO₃+NaCl溶液中的孔蚀行为[J]. 中国腐蚀与防护学报, 2016, 36(3): 238-244.
[8]	陈文,管春平,杨申明,胡小安. 节节草提取物在盐酸介质中对碳钢的缓蚀行为研究[J]. 中国腐蚀与防护学报, 2016, 36(2): 177-184.
[9]	黄涛,陈小平,王向东,米丰毅,刘芮,李向阳. pH值对Q235钢在模拟土壤中腐蚀行为的影响[J]. 中国腐蚀与防护学报, 2016, 36(1): 31-38.
[10]	陈启萌,张俊喜,原徐杰,戴念维. 外加交流电场对薄液膜中氧扩散的影响[J]. 中国腐蚀与防护学报, 2015, 35(6): 549-555.
[11]	李明丽, 刘丹, 曹淑云, 彭坤, 梁平, 史艳华, 桂建舟, 刘峰. 盐酸介质中Brönsted酸离子液体对Q235钢的缓蚀行为[J]. 中国腐蚀与防护学报, 2015, 35(5): 400-406.
[12]	丁其晨, 陈上. 聚N-乙烯基咪唑对盐酸介质中Q235钢的缓蚀性能[J]. 中国腐蚀与防护学报, 2015, 35(1): 55-60.
[13]	鞠玉琳, 李焰. 气相缓蚀剂的研究进展[J]. 中国腐蚀与防护学报, 2014, 34(1): 27-36.
[14]	彭欣, 王佳, 王金龙, 山川, 贾红刚, 刘在健, 王海杰. 海水中带锈Q235钢腐蚀电化学参数测定[J]. 中国腐蚀与防护学报, 2013, 33(6): 449-454.
[15]	文丽娟, 高志明, 刘洋洋, 林峰. 阴极保护电位对Q235钢氢脆敏感性和力学性能的影响[J]. 中国腐蚀与防护学报, 2013, 33(4): 271-276.

Viewed

Full text

Abstract

Cited

Shared

Discussed