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China Ocean Engineering 2015年第6期29卷 925-932页

作者：汤雁冰王胜年陈龙范志宏 Key Laboratory of Durability Technology for Harbor & Marine Structure Ministry of Communications CCCC Fourth Harbor Engineering Institute Co.Ltd.

Reference electrodes are a key part for corrosion monitoring and measurement of rebars in concrete. A reference electrode that can be buried in concrete is fabricated by using Ag/Ag Cl electrode and methyl cellulose gelling electrolyte. The stability, repeatability and anti-polarization of the reference electrode are investigated; the influences of the inner electrolyte loss, exterior OH- contamination, and temperature on the potential of the reference electrode are also investigated in this paper. The results show that the reference electrode has good stability, repeatability, and antipolarization. The influences of inner electrolyte loss, exterior OH- contamination, and temperature on the potential of the reference electrode are minimal. Therefore, it can be used for corrosion monitoring and measurement of rebars in concrete.

关键词： reference electrode methyl cellulose gelling electrolyte Ag/AgCl electrode corrosion monitoring rebarsconcrete

Understanding environmental impacts on initial atmospheric corrosion based on corrosion monitoring sensors

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Journal of Materials Science & Technology 2021年第5期64卷 214-221页

作者： Zibo Pei Xuequn Cheng Xiaojia Yang Qing Li Chenhan Xia Dawei Zhang Xiaogang Li Beijing Advanced Innovation Center for Materials Genome Engineering Key Laboratory for Corrosion and Protection(MOE)Institute for AdvancedMaterials and TechnologyUniversity of Science and Technology BeijingBeijing 100083China School of Material Science and Engineering Nanchang Hangkong UniversityNanchang 330063China

Atmospheric corrosion monitoring(ACM)sensors were employed to study the initial atmospheric corrosion of carbon steels over a one-month period in six outdoor dynamic atmospheric environments in *** on the~250,000 corrosion data sets collected,the environmental impacts of relative humidity,temperature and rainfall on the initial corrosion behavior of carbon steels were *** results showed that rainfall was the strongest environmental factor influencing the initial atmospheric corrosion *** humidity significantly influenced the corrosion of carbon steels in low-precipitation environments and non-rainfall period.

关键词： Atmospheric corrosion corrosion monitoring Sensors Carbon steels

Atmospheric corrosion monitoring of Field-exposed Q235B and T91 Steels in Zhoushan Offshore Environment Using Electrochemical Probes

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Journal of Wuhan University of Technology(Materials Science) 2017年第6期32卷 1433-1440页

作者：夏大海 SONG Shizhe JIN Weixian LI Jian 高志明 WANG Jihui HU Wenbin School of Materials Science and Engineering Tianjin University Tianjin 300354 China CAS Key Laboratory of Nuclear Materialsand Safety Assessment Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Zhoushan Marine corrosionInstitute of Central Research Institute of Iron and Steel Zhoushan 316000 China State Key Laboratory of Precision Measurement Technology and lnstrument Tianjin University Tianjin 300072 China

This work aimed to in-situ monitor the atmospheric corrosion of steels exposed to Zhoushan offshore environment by using electrochemical noise（EN） technique. A portable EN monitoring system was established and two electrochemical probes（named as Q235 B and T91） were designed. Experimental results indicated that the noise resistance of T91 steel was higher than that of Q235 B steel, revealing that the corrosion resistance of T91 was higher than that of Q235 B. A 60-day monitoring result indicated that the noise resistance was well correlated with the weight loss data. Wavelet analyses results of EN data indicated that Q235 B underwent uniform corrosion and T91 suffered from localized corrosion, which was further confirmed by the surface observation. It is concluded that EN can be used as a new method to identify the corrosion form and corrosion resistance in atmospheric conditions.

关键词： atmospheric corrosion electrochemical noise corrosion monitoring offshore in field

OILFIELD,GAS TRANSMISSION AND REFINERY corrosion monitoring APPLICATIONS AND TECHNIQUES

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OILFIELD,GAS TRANSMISSION AND REFINERY CORROSION MONITORING ...

Experimental and finite element analyses on the corrosion of underground pipelines

China International corrosion Control Conference ’99

作者： Clifford G.Moore P.E.Rohrback Cosasco Systems 11841 East Smith Ave.Santa Fe Springs CA 90670 USA

＜正＞The corrosive attack to downhole tubulars,above ground piping,and vessels in the oilfield can lead to a loss of production,severe environmental damage and considerable economic ***, corrosion can cause the failure of major piping and vessels in gas processing and refinery facilities. These failures can lead to catastrophic explosions and fires which can cause serious injuries,or death, to operating personnel. With an active corrosion management program,corrosion events can be rapidly detected,quantified, and remedial actions taken before serious damage *** utilizing the advantages of proven electrical resistance and linear polarization resistance corrosion monitoring technologies and properly applying them,corrosion control actions can be taken and evaluated on a real-time basis.

关键词： corrosion monitoring online corrosion monitoring electrical resistance sensors linear polarization resistance ER LPR

来源： cnki会议评论

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Science China(Technological Sciences) 2015年第6期58卷 1015-1020页

作者： SUN Li CHEN Chen SUN QianQian School of Civil Engineering Shenyang Jianzhu University Liaoning Urban Architectural Design Institute

Underground pipelines, on which a city relies for survival and development, have become an important part of lifeline engineering. Underground pipelines are utilized for conveying liquid, gas or loose solid, pipeline leakage and damage occasionally resulting from corrosion. corrosion monitoring of underground pipelines is aimed at ensuring their normal operation and preventing loss of life and property. In this paper, a new method to monitor corrosion of pipelines has been proposed to solve the mentioned problem. Under the influence of internal pressure and corrosion, the pipeline wall becomes thinner and the circumferential deformation increases. The method is to indirectly investigate pipeline corrosion by monitoring the circumferential deformation. Numerical simulation confirms that the circumferential strain curve of the pipeline wall measured by using the proposed method to describe the corrosion is feasible. The proposed method provides a new way for real-time and long-term monitoring and management of underground pipelines.

关键词： underground pipeline fiber bragg grating sensor corrosion monitoring

Electrochemical measurements used for assessment of corrosion and protection of metallic materials in the field:A critical review

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Journal of Materials Science & Technology 2022年第17期112卷 151-183页

作者： Da-Hai Xia Cheng-Man Deng Digby Macdonald Sina Jamali Douglas Mills Jing-Li Luo Michael G.Strebl Mehdi Amiri Weixian Jin Shizhe Song Wenbin Hu Tianjin Key Laboratory of Composite and Functional Materials Tianjin 300350China School of Materials Science and Engineering Tianjin UniversityTianjin 300350China Department of Nuclear Engineering University of California at BerkeleyBerkeleyCA 94720USA School of Chemistry The University of New South WalesSydneyNSW 2052Australia School of Science and Technology University of NorthamptonSt.George’s AvenueNorthamptonNN26JDUK Department of Chemical and Materials Engineering University of AlbertaEdmontonAlberta T6G 1H9Canada Department of Materials Science(LKO WW-4)University of Erlangen-Nuremberg91058 ErlangenGermany Department of Mechanical Engineering George Mason UniversityFairfaxVirginia 22030USA Zhoushan Marine corrosion Institute of Central Research Institute of Iron and Steel Zhoushan316003China

corrosion degradation is detrimental to metal structures as it shortens their lifetime and leads to huge economic losses and unexpected ***,the detection and monitoring of corrosion degradation is of great ***,we briefly review the state-of-the-art electrochemical methods,instrumentation(based on virtual instrumentation),and advanced sensor/probes that are used in the field for the assessment of corrosion *** corrosion monitoring results,some of which have been obtained at Tianjin University in the past 30 years,for metallic materials and organic coating/metal systems in atmospheric,marine,and soil conditions in the field are *** methods,data analysis,and theoretical and mathematical models regarding each corrosion system are discussed,and the challenges,problems and possible solutions for each case are ***,future developments,such as wireless,intelligent,and automatic electrochemical measurement,that will augment the present electrochemical methods of evaluating corrosion degradation are summarized.

关键词： corrosion monitoring Electrochemical method Virtual instrumentation Sensor Data analysis In-situ measurement Probe

Portable 4-Channel Electrochemical Noise Test System

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Transactions of Tianjin University 2014年第2期20卷 144-150页

作者：李健孔伟康郑焕军张力毛雪伟 State Key Laboratory of Precision Measuring Technology and Instruments Tianjin University

A portable 4-channel electrochemical noise(EN) test system with high precision was *** modular instrument cRIO was used as its core and the signal conditioning module included zero resistance ammeter(ZRA),fly line,screening box and shielded *** EN data were acquired from two Q235 carbon steel specimens placed in 0.5 mol/L H2SO4 solution and 0.1 mol/L NaCl *** experimental result shows that this system can achieve an accuracy of 10 pA and 10 μV,and it can be applied to on-site multi-channel EN test.

关键词： corrosion monitoring electrochemical noise test 4-channel

Large Vertical Storage Tank Bottom Evaluation via Acoustic Emission Signal Analysis

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Large Vertical Storage Tank Bottom Evaluation via Acoustic E...