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EUROCORR 2020: ‘Closing the gap between industry and academia in corrosion science and prediction’ Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2021-01-11 D. J. Mills; D. Nuttall; L. Atkin
ABSTRACT The flagship congress of the European Federation of Corrosion (EFC), EUROCORR 2020 was held under the above theme from the 7th–10th September. Owing to the pandemic, this was held as a VIRTUAL conference. This major corrosion event will be reviewed in four parts over four issues, with the present instalment providing an overall summary, giving titles and access to the plenary lectures, and
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Hydrostatic pressure effects on corrosion behaviour of X80 steel in artificial sea water Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2021-01-06 Chengcheng Xu; Yuxiang Zhu; Wanlei Liu; Feihu Bao; Erju Liu; Feifei Huang; Lei Wen; Ying Jin; Dongbai Sun
ABSTRACT The effect of hydrostatic pressure (HP) on the corrosion behaviour of X80 steel is investigated to assist the development of deep-sea oil and gas resources. The results show that the corrosion current increases as HP increases whereas the charge transfer resistance follows the opposite trend. The corrosion products are composed of γ-FeOOH, α-Fe2O3 and α-FeOOH at atmospheric pressure, while
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Semiconductor electrochemical study of the passivity limits of austenitic stainless-steel in H2S-containing brines Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2021-01-06 Raymundo Case
ABSTRACT The objective of the study is to correlate the effects of temperature, H2S and Cl− concentration on the passivity limits and the onset of localised corrosion in UNS S31603 stainless steel by evaluating the changes in the semiconducting behaviour exhibited by the passive layer. The study is accomplished experimentally by using a combination of direct and alternate current electrochemical methods
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Estimation of long-term corrosion resistance of structural metals and mapping the continental territory of the Russian Federation for various time periods Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2021-01-06 Yulia Panchenko; Andrey Marshakov; Timofey Igonin; Ludmila Nikolaeva
ABSTRACT The results of predictions concerning the long-term corrosion losses of structural metals in the continental territory of Russia with rural atmospheres and in certain locations with urban atmospheres are presented. A power-linear model is used to predict long-term corrosion losses. Two variants for estimating the coefficients in the model are used. The first variant is presented in ISO 9224
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Long-term corrosion behaviour of 1060 aluminium in deep-sea environment of South China Sea Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2021-01-06 Wenshan Peng; Tigang Duan; Jian Hou; Weimin Guo; Kangkang Ding; Wenhua Cheng; Likun Xu
ABSTRACT The serial-type deep-sea environmental test device was used to investigate the corrosion behaviour of 1060 aluminium exposed at real sea for 0.5 year and 2 years. Specimens were deployed at a depth of 1200, 2000 and 3000 m, respectively. A three-stage corrosion process was proposed after analysing the corrosion profile and the corrosion products of the specimens. The corrosion regularity was
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Effect of stress on the crevice corrosion of P110 steel in the CO2-saturated NaCl solution containing thiosulphate/H2S Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-12-21 Lijin Dong; Xiaolong Zhang; Qinying Wang; Huaibei Zheng; Qinglong Lu; Bingbin Wang
ABSTRACT The effect of stress on the crevice corrosion of P110 carbon steel in the CO2-saturated 3.5 wt-% NaCl solution with a small amount of thiosulphate/H2S was investigated. The results showed that the composition of corrosion products on the steel surface did not change with elastic stress while the mackinawite film formed at the crevice mouth was more easily spalled off under higher stresses
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Influence of chloride ions concentration on the development of severe localised corrosion and its effects on the electrochemical response of the 2198-T8 alloy Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-12-21 Caruline de Souza Carvalho Machado; Rejane Maria Pereira da Silva; João Victor de Sousa Araujo; Mariana Xavier Milagre; Uyime Donatus; Bárbara Victoria Gonçalves de Viveiros; Rafael Emil Klumpp; Isolda Costa
ABSTRACT The development of severe localised corrosion (SLC) on the 2198-T8 alloy was investigated in solutions of various NaCl concentrations (0.001, 0.005 and 0.01 mol L−1). Immersion tests, optical profilometry, conventional and local electrochemical analyses were performed to evaluate the corrosion behaviour of the alloy. Immersion tests showed that the alloy is susceptible to SLC in all conditions
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Comparison of H2S high-temperature corrosion characteristics of three kinds of low-alloy and heat-resistant-steel tubes Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-12-15 Ming Qin; Hang Su; Wei Wu; Jiangquan Wu; Hui Liu; Yaping Tan; Mingqi Yan
ABSTRACT This study investigates the H2S high-temperature corrosion characteristics of three common heat – exchanging tubes for supercritical boilers, namely SA-213T12, 15CrMoG and 12Cr1MoVG. The high-temperature corrosion rates and wall thickness reduction rates of these three materials were investigated. The results indicate that the spalling of corrosion fragments produced by high-temperature H2S
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60 Years’ marine corrosion of aluminium alloy 24S (2024) from an historic aircraft wreck site: implications for conservation Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-12-15 E. Rocca; J. Tardelli; F. Mirambet
ABSTRACT Aluminium alloys forming the remnants of Lockheed P38 of Antoine de Saint-Exupéry was identified as the 24S aluminium alloy developed in 1930s. After 60 years in sea water, thick corrosion layers composed of aluminium hydroxide, copper salts and nanometre pure copper particles. In addition, the ancient aluminium alloy has undergone a very important intergranular corrosion. After the synthesis
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Research on corrosion behaviour of X65 pipeline steel under dynamic AC interference Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-12-07 Le Chen; Yanxia Du; Yi Liang; Jianjun Li
ABSTRACT To accurately assess the corrosion risk under dynamic AC interference, the dynamic fluctuation characteristics of the pipeline near high-speed railway were analyzed by field test data. The corrosion rate and morphology of corrosion products under natural corrosion, steady AC interference, and dynamic AC interference were compared, and the effect of AC current density and typical dynamic interference
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Results of an international round-robin exercise on electrochemical impedance spectroscopy Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-11-25 Stefan Ritter; Rik-Wouter Bosch; François Huet; Kieu Ngo; Robert A. Cottis; Mirdash Bakalli; Michele Curioni; Matthias Herbst; Andreas Heyn; Jan Macak; Radek Novotny; Johan Öijerholm; Timo Saario; José M. Sanchez-Amaya; Hisasi Takenouti; Bojan Zajec; Wenzhong Zhang
ABSTRACT To check the reproducibility of electrochemical impedance spectroscopy (EIS) measurements, 19 laboratories have performed round-robin (RR) testing on EIS using various instruments and three different systems: a dummy cell and two electrochemical systems of practical interest in the nuclear corrosion domain. The general conclusion drawn from the tests performed with the dummy cell is that the
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Effect of Ti on the corrosion behaviour of as-cast Fe–17Cr ferritic stainless steel Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-11-25 Junwei Fu; Kai Cui; Feng Li; Yucheng Wu
ABSTRACT The effect of Ti addition on the microstructure and corrosion resistance of the as-cast Ti-stabilised Fe–17Cr ferritic stainless steels was investigated by optical microscopy, scanning electron microscopy, X-ray diffraction and energy-dispersive spectrometer. The corrosion behaviour of the as-cast Fe–17Cr ferritic stainless steel in 10 wt-% HNO3 and 10 wt-% NaOH solutions was examined by using
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Myrtus communis extract: a bio-controller for microbial corrosion induced by sulphate reducing bacteria Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-11-25 Farideh Mohammad Hossein Zadeh; Moj Khaleghi; Sajjad Bordbar; Abdolhamid Jafari
ABSTRACT This study aimed to study the inhibitory effect of the Myrtus communis extract on the microbiologically influenced corrosion (MIC) induced by sulphate reducing bacterial (SRB) consortium in the cooling tower water. The SRB consortium was grown on the surface of the st37 steel and its effects on the surface corrosion were evaluated. The results of electrochemical measurements and microscopic
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Effect of buffer chemistries on the electrochemical corrosion behaviour of three metallic materials Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-11-24 Srinivas Palli; V. S. Raja
ABSTRACT The influence of chemistry apart from the pH of buffers on the electrochemical corrosion behaviours of mild steel (MS) and 7004 aluminium alloy (AA) was studied using acetate, citrate, and citrate-phosphate buffers having an identical pH of 4. While the buffers showed marginal to insignificant variations in their anodic and cathodic kinetics on Pt, the cathodic current density for MS and AA
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Early identification of stress corrosion cracking of P110 low alloy steel in downhole fluid by electrochemical noise measurement Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-11-22 Yanbin Jiao; Deping Zhang; Jun Yu; You Lv; Xinxin Zhang; Zehua Dong
ABSTRACT Electrochemical noise (EN) measurements were applied to detect the stress corrosion cracking (SCC) of API P110 low alloy steel in simulating CO2-containing downhole fluid during the slow strain rate test (SSRT). Several statistical parameters of potential and current transients were defined, and they were proven to be indicative of the metastable and stable pitting, as well as the initiation
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UV weathering and performance of a novel corrosion protective coating on steel made from recycled polyethylene terephthalate (PET) Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-10-26 Mônica M. Ferreira; Elisângela A. da Silva; Fernando Cotting; Vanessa de F. C. Lins
ABSTRACT Poly(ethylene terephthalate) (PET) powder obtained from post-consumer bottles is deposited on carbon steel by using a hot mechanical pressing method. The PET coated steels are aged in weathering chambers by using a xenon lamp for 400 and 1500 h, and using ultraviolet (UV-B) lamps for 400 h. The aged PET coatings are analysed by Fourier transform infrared spectroscopy (FTIR), scanning electron
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Multi-physical analysis of the electrochemical behaviour of OFHC copper surfaces obtained by orthogonal cutting Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-10-26 L.A. Denguir; J.C. Outeiro; G. Fromentin
ABSTRACT As mechanical, physical and microstructural properties of metals can be significantly affected by the machining process, electrochemical properties and corrosion resistance are consequently altered. Manufacturers should control the impact of cutting conditions on surface integrity, as it will affect the component’s functional performance and life. This study addresses the case of orthogonal
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The effect of heat treatment on environment assisted cracking susceptibility of 9% Ni steel Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-10-26 Jonas da Silva de Sa; Rafael da Silva Gama; Jose Antonio da Cunha Ponciano Gomes
ABSTRACT The influence of temper temperature on the environment assisted cracking of seamless 9% Ni steel tubes were investigated using scanning electron microscope (SEM), electron backscatter diffraction (EBSD), X-ray diffraction (XRD), slow strain rate tensile (SSRT) tests, hydrogen permeation tests and electrochemical measurements. Mechanical and electrochemical tests were conducted in sodium thiosulphate
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Comparison of electrochemical behaviour between La-free and La-containing CrMnFeNi HEA by Mott–Schottky analysis and EIS measurements Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-10-21 Yipu Sun; Aidong Lan; Xi Jin; Huijun Yang; Junwei Qiao
ABSTRACT In this study, the electrochemical behaviour of CrMnFeNi and CrMnFeNiLa0.1 high-entropy alloys (HEAs) in 0.5 M H2SO4 solutions was investigated. Potentiodynamic polarisation curves and electrochemical impedance spectroscopy (EIS) measurements showed that the addition of rare earth element lanthanum has a positive impact in enhancement of corrosion resistance capacity for CrMnFeNi HEAs. The
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Influence of hydrodynamic condition on 1,3,5-tris(4-methoxyphenyl)-1,3,5-triazinane as a novel corrosion inhibitor formulation for oil and gas industry Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-10-06 Ikenna B. Onyeachu; Dheeraj Singh Chauhan; M. A. Quraishi; I. B. Obot
ABSTRACT The present work reports the application of 1,3,5-tris(4-methoxyphenyl)-1,3,5-triazinane for the inhibition of X60 steel corrosion in 3.5% NaCl saturated with CO2. The compound was synthesized using a facile ultrasonic irradiation method, and for the first time, a comparative analysis of the static and hydrodynamic conditions was performed. The results of open circuit potential (OCP) vs. time
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Atmospheric and immersion corrosion of steel alloyed with aluminium Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-10-01 R. Jeffrey; R. E. Melchers
ABSTRACT This paper reports a systematic study of longer-term marine atmospheric and immersion corrosion losses for mild steel alloyed with small to moderate amounts (0, 2, 4, 6 and 8% by weight) of aluminium. Such steel coupons were exposed for up to 3 years in temperate sea water and also just below the mud-line, and for up to one year at two severe atmospheric marine locations. Compared with the
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The effect of size and distribution of inert pigment on the performance of organic coatings Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-09-29 A. Królikowska; L. Komorowski; P. L. Bonora
ABSTRACT The paper aims to show how the performance of paint coatings is affected by their composition. Samples of two paint coatings, which had delaminated in service, were compared with the same type of paint applied to samples for the purposes of certification. The particle size distribution of the filler materials (inert pigments) affected the flow of resin and wetting of the particles. In both
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Multifunctional Ag-based ternary nanocomposite incorporated epoxy coating as antibacterial, anticorrosion and antifouling agent Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-09-23 Xuehui Liu; Nan Wang; Baorong Hou
In this work, multifunctional Ag-based ternary nanocomposites were prepared using a simple one-pot in situ polymerisation reaction. Attapulgite (ATP) was used as a supporter to deposit Ag nanoparticles (AgNPs) and polyaniline (PANI) on the surface of ATP nanorods. The morphology and structure of the ATP/PANI/AgNPs nanocomposites were investigated by transmission electron microscope and X-ray diffraction
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Theoretical insight and experimental elucidation of desferrioxamine B from Bacillus sp. AS7 as a green corrosion inhibitor Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-09-22 S. Pérez-Miranda; L.S. Zamudio-Rivera; R. Cisneros-Dévora; R. George-Téllez; F.J. Fernández
A theoretical and experimental systematic study was performed to determine the structural characteristics and functionality that siderophores must have to be used as ecological corrosion inhibitors. Analyses demonstrated that the hydroxamate functional group is the best siderophore that could be used as a corrosion inhibitor of neutral or acidic environments because it would form a smart protective
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Two years pitting corrosion of AA5005-H34 aluminium alloy immersed in natural seawater: data interpretation Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-09-14 Mengxia Liang; Robert Melchers
This paper reports pitting corrosion loss data of AA5005-H34 aluminium alloy immersed in natural seawater for up to 2 years. It is shown that the data for mass loss, maximum pit depth and the average value of 15 deepest pits as a function of exposure time are not closely consistent with the classical power-law function. Instead, the data show a greater affinity to the early part of a bi-modal trend
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Stress corrosion crack initiation testing with tapered specimens in high-temperature water – results of a collaborative research project Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-09-08 Rik-Wouter Bosch; Stefan Ritter; Matthias Herbst; Renate Kilian; M. Grace Burke; Jonathan Duff; Fabio Scenini; Yuchen Gu; Alice Dinu; Ulla Ehrnstén; Aki Toivonen; Radek Novotny; Oliver Martin; Francisco-Javier Perosanz; Andraž Legat; Bojan Zajec
The applicability of an accelerated test technique using tapered tensile specimens for investigating the stress corrosion crack (SCC) initiation behaviour of structural materials in high-temperature water was assessed in the framework of a European collaborative research project (MICRIN – MItigation of CRack INitiation). The main advantage of using a tapered geometry is, that in a single test a stress
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Evaluation of octadecylamine for the corrosion inhibition of Incoloy 800 Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-09-07 Subrata Kuilya; Veena Subramanian; S. Bera; S. Rangarajan
Indian pressurised heavy water reactors use Incoloy 800 for steam generators. The pH is maintained alkaline to check corrosion in secondary circuit by the addition of Ethanolamine (ETA). Effect of octadecylamine (ODA) for further reduction of corrosion is investigated. Incoloy was exposed to both steam and liquid phases at 200°C in an autoclave for 7 days. Concentration of ETA was kept constant at
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Role of grinding induced surface residual stress on probability of stress corrosion cracks initiation in 316L austenitic stainless steel in 3.5% sodium chloride aqueous solution Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-08-27 Arshad Yazdanpanah; Farid Reza Biglari; Alireza Fallahi Arezoodar; Manuele Dabalà
Experimental investigation on the relation of grinding induced surface residual stresses (RS) with stress corrosion cracking (SCC) susceptibility and electrochemical behaviour was conducted on 316L austenitic stainless steel in 3.5% sodium chloride aqueous solution. Grinding was done with the same process parameters to lower the effect of other known parameters on SCC initiation. The corrosion behaviour
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The influence of concretion on the long-term corrosion rate of steel shipwrecks in the Belgian North Sea Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-08-18 Kris De Baere; Sven Van Haelst; Igor Chaves; Deirdre Luyckx; Krista Van Den Bergh; Kim Verbeken; Ewoud De Meyer; Katrijn Verhasselt; Raf Meskens; Geert Potters; Rob Melchers
ABSTRACT Some three hundred mainly steel shipwrecks from both World Wars lie buried at shallow depths along the Belgian North Sea coast. They were examined recently to estimate corrosion rates over periods in excess of 100 years. The rate was estimated by comparing the measured in-situ steel plate thicknesses with archived ship information. The estimates show distinctly lower long-term corrosion rate
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Effect of substituents in 5-R-3-amino-1,2,4-triazoles on the chemisorption on copper surface in neutral media Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-08-18 Yuri I. Kuznetsov; Khidmet S. Shikhaliev; Marina O. Agafonkina; Nina P. Andreeva; Ivan A. Arkhipushkin; Andrei Yu. Potapov; Leonid P. Kazansky
Using a complex of physical and electrochemical methods, the effect of R-substituent on the adsorption of 5-R-3-amino-1,2,4-triazoles on copper surface in neutral buffer solution was studied. Minimum concentrations C min, which suppresses the first anodic peak of copper dissolution were found, and two different linear correlations of log C min values on induction constant σI were plotted: for compounds
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Corrosion behaviour of resistance-spot-welded high-Mn austenitic TWIP steel Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-08-14 G. Monrrabal; J. A. Jiménez; J. Ress; S. Fajardo; J. M. Bastidas; I. Llorente; D. M. Bastidas
High-Mn twinning-induced plasticity (TWIP) steels have been proposed to meet higher passenger safety and crash-safe vehicle frame requirements demanded by the automotive industry. The corrosion behaviour of welded Fe–30Mn–5Al–0.5C–6Cr TWIP steel using the resistance-spot-welding (RSW) technique was studied. Welds showed a microstructure consisting of primary austenite dendrites and interdendritic δ-ferrite
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Microstructure, mechanical and corrosion properties of Mg–Zn–Sr–Ca alloys for use as potential biodegradable implant materials Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-08-06 Xiang Meng; Xiaoqing Liao; Zhongtao Jiang; Hua Tang; Shijie Zhu; Shaokang Guan
ABSTRACT Effects of Ca addition on as-cast microstructure, mechanical and corrosion properties of Mg–2Zn–0.3Sr alloy were investigated for biodegradable implant application. First, a comparison between Ca and Sr addition in Mg–2Zn alloy was studied. Mg–2Zn–0.3Sr showed the better corrosion performance, but the worse mechanical property. Then, the results of Ca addition indicated that the dendritic
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Electrochemical and characterisation study of corrosion of reinforcing steel embedded in kaolinite: two-year exposure study Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-08-03 Miloud Baghdad; Bachir Ait Saadi
Corrosion of reinforcing steel embedded in kaolinite clay was studied for a two year exposure period. Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarisation (POL) revealed a decrease of the corrosion rate (CR) of the steel bars up to average values of 2.5 μm y−1. X-ray photoelectron spectroscopy (XPS), and Scanning electron microscope (SEM) equipped with Energy-dispersive X-ray
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Corrosion behaviour of 2205 DSS in the artificial industrial-marine environment Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-07-14 Tianyi Zhang; Yonggang Zhao; Baojun Dong; Xiaogang Li
The corrosion behavior of 2205 duplex stainless steel (2205 DSS) was investigated by atomization tests, which was performed in an S-bearing thin electrolyte layer used as the artificial industrial-marine environment. Electrochemical methods and X-ray photoelectron spectroscopy (XPS), were conducted to reveal the protection properties and the composition evolution of the passive film. The results indicated
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Electrochemical corrosion behaviour of Sn–Sb solder alloys: the roles of alloy Sb content and type of intermetallic compound Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-07-14 Marcelino Dias; Nathália C. Verissimo; Natal N. Regone; Emmanuelle S. Freitas; Noé Cheung; Amauri Garcia
Sn–Sb solder alloys (2; 5.5 and 10wt-% Sb) were directionally solidified with a view to permitting the effect of a wide range of solidification cooling rates to be related to the resulting microstructure, which is shown to be formed by a cellular Sn-rich matrix with Sn–Sb intermetallic particles (IMCs) randomly distributed in the matrix The corrosion resistance of these alloys is investigated by electrochemical
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Accelerated corrosion of pipeline steel under dynamic DC stray current interference Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-07-09 Huimin Qin; Yanxia Du; Minxu Lu; Jie Liu; Xiangjian Zhu
ABSTRACT In this paper, the statistical analysis of fluctuation characteristics of pipeline potential under dynamic DC stray current interference was carried out based on field test data. Then a self-designed experimental set-up was applied to study the corrosion behaviour of X70 steel in soil-simulating conditions. The statistical results showed that under the dynamic DC stray current interference
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Chloride-induced reinforcement corrosion in cracked concrete: the influence of time of wetness on corrosion propagation Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-07-07 Carolina Boschmann Käthler; Ueli M. Angst; Gino Ebell; Bernhard Elsener
Literature data on the influence of concrete cracks on corrosion propagation of reinforcing steel are contradictory. This might be due to very different exposure and test conditions but also to a lack of time-resolved data in cyclic wetting–drying exposure. Here, the influence of the environmental conditions on the corrosion rates in cracked concrete is studied experimentally. The results show that
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Galvanic corrosion analysis of a Bi–Zn solder alloy coupled to Ni and Cu substrates Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-07-07 Rudimylla S. Septimio; Maria A. Arenas; Ana Conde; Amauri Garcia; Noé Cheung; Juan de Damborenea
ABSTRACT Corrosion has become a frequent and significant issue in the electronics industry. For this reason, galvanic corrosion of soldered joints, i.e. when solder alloys are in contact with a metallic substrate, is so important. The present study aims to investigate the corrosion behaviour of the Bi-2.7wt-%Zn solder alloy when in contact with Cu and Ni substrates in a 0.06M NaCl solution. Polarisation
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Effects of temperature on polarity reversal of under deposit corrosion of mild steel in oilfield produced water Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-30 Yu-Le Wu; De-Ping Zhang; Guang-Yi Cai; Xin-Xin Zhang; Ze-Hua Dong
ABSTRACT Under-deposit corrosion (UDC) is one of the main factors leading to perforation or leakage of gathering pipeline in the oilfield. In this paper, galvanic corrosion of mild steel under CaCO3 deposit was investigated by using wire beam electrodes (WBE) in the oilfield-produced water. Potential and galvanic mappings indicated that the wire electrodes covered by CaCO3 deposit mainly acted as anode
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Crack initiation in tapered high Si stainless steel specimens – stress threshold analyses Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-30 A. Penders; M. J. Konstantinović; R.W. Bosch; D. Schryvers
ABSTRACT Tapered specimens were used for an accelerated test technique to study the crack initiation of high Si stainless steel by means of constant elongation rate tensile testing in a simulated pressurised water reactor environment. Detailed crack density distributions were obtained by applying an advanced crack detection algorithm on iteratively displaced scanning electron microscopy pictures featuring
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Two years pitting corrosion of AA5005-H34 aluminium alloy immersed in natural seawater: morphology characterisation Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-16 Mengxia Liang; Robert Melchers
ABSTRACT Pitting corrosion of aluminium alloy AA5005-H34 immersed in natural sea water for up to 2 years is presented, together with new interpretations of the development of the pitting process over extended exposure periods. Trenching initiated at surface-located Fe-rich intermetallic (IM) particles. It occurred more extensively in sea water compared to atmospheric exposures. With increasing exposures
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Covid-19: effect of disinfection on corrosion of surfaces Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-08 L. Bonin; V. Vitry; M.-G. Olivier; L. Bertolucci-Coelho
ABSTRACT In suspected cases of COVID-19 infection, the World Health Organization has recommended the thorough cleaning of surfaces and the application of commonly used hospital-level disinfectants are effective procedures. The new virus situation has changed the sanitary habits of industries and this will potentially have anadverse effect on surfaces highly exposed to disinfectants that are often chlorinated
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Development of models for the prediction of first-year corrosion losses of standard metals for territories with a coastal atmosphere in various climatic regions of the world Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-05 Yulia Panchenko; Andrey Marshakov; Ludmila Nikolaeva; Timofey Igonin
ABSTRACT This paper presents various models (dose–response functions, DRFs) for predicting the first-year corrosion losses of structural metals for areas with marine and marine–urban (industrial) atmospheres. The prediction results for the first-year corrosion losses (C 1 pr) calculated by the DRF from the ISO 9223 standard and by the DRF developed by us are presented. A comparative assessment of the
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Investigation of service life and corrosion mechanism of tubing in production well on polymer flooding Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-03 Dezhi Zeng; Zhiming Yu; Baojun Dong; Haixin Zhang; Huiyong Yu; Gang Tian; Yonggang Yi
ABSTRACT The corrosion behaviour and the remaining safe service life of tubing in simulating production well of polymer flooding in Xinjiang oilfield which located in China was investigated using weight loss measurement and surface characterisation. The results showed that as the chloride ion concentration, temperature and H2S content increased, the corrosion rate of N80 steel gradually increased in
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Some thoughts about misconceptions surrounding the term ‘biofilm' Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-03 Reza Javaherdashti
ABSTRACT The central concept of microbiologically influenced corrosion is ‘biofilm’. However, it is neither a 100% biological fabric nor a film. While biofilms though mechanisms such as establishment of differential aeration cells can accelerate corrosion, under certain circumstances such as thickening may also decelerate corrosion. In this article, these mechanisms will be discussed. Along with that
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Microbial community dynamics in a crust formed on carbon steel SS400 during corrosion Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-03 Shin-ichi Hirano; Toru Nagaoka; Norio Matsumoto
ABSTRACT To obtain information on the mechanism of microbiologically influenced corrosion (MIC) under anaerobic conditions, metabolic processes and microbial community dynamics were analysed for MIC of carbon steel with lake-mud microbial consortium as inoculum. During one month of MIC experiment, the microbial consortium corroded carbon steel with sulphate reduction, methane and acetate production
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Investigation of service life and corrosion mechanism of tubing in production well on polymer flooding Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-03 Dezhi Zeng; Zhiming Yu; Baojun Dong; Haixin Zhang; Huiyong Yu; Gang Tian; Yonggang Yi
The corrosion behaviour and the remaining safe service life of tubing in simulating production well of polymer flooding in Xinjiang oilfield which located in China was investigated using weight loss measurement and surface characterisation. The results showed that as the chloride ion concentration, temperature and H2S content increased, the corrosion rate of N80 steel gradually increased in the hydrolysis
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Microbial community dynamics in a crust formed on carbon steel SS400 during corrosion Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-03 Shin-ichi Hirano; Toru Nagaoka; Norio Matsumoto
To obtain information on the mechanism of microbiologically influenced corrosion (MIC) under anaerobic conditions, metabolic processes and microbial community dynamics were analysed for MIC of carbon steel with lake-mud microbial consortium as inoculum. During one month of MIC experiment, the microbial consortium corroded carbon steel with sulphate reduction, methane and acetate production. The bacterial
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Some thoughts about misconceptions surrounding the term ‘biofilm' Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-06-03 Reza Javaherdashti
The central concept of microbiologically influenced corrosion is ‘biofilm’. However, it is neither a 100% biological fabric nor a film. While biofilms though mechanisms such as establishment of differential aeration cells can accelerate corrosion, under certain circumstances such as thickening may also decelerate corrosion. In this article, these mechanisms will be discussed. Along with that, this
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Water-based epoxy coatings with pH-sensitive TiO2 containers for active corrosion protection of carbon steel Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-28 Xuehui Liu; Ma Zheng; Tong Hongtao; Li Kaiwei; Hou Baorong
ABSTRACT Smart containers can be produced with polyelectrolyte multilayers that can release inhibitors in response to environmental changes at the coating defects. In this study, mesoporous TiO2 hollow spheres were adopted as carriers for the encapsulation of corrosion inhibitor. The inhibitor-loaded TiO2 containers were modified by polyelectrolyte shells using layer-by-layer self-assembly technology
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Experimental study on corrosion behaviour of galvanized steel wires under stress Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-23 Rou Li; Changqing Miao; Tinghua Wei
ABSTRACT To study the corrosion behavior of galvanized steel wires under stress, the influence of stress level, pH value, Cl- concentration and the coupling effect on the corrosion rate of cable steel wire were discussed through stress corrosion test. The prediction formula of corrosion rate of steel wire was established based on response surface method. The constitutive model of steel wire was also
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The marine atmospheric corrosion of pure Mg and Mg alloys in field exposure and lab simulation Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-23 Ruohan Yu; Fuyong Cao; Chen Zhao; Jinghua Yao; Jingjing Wang; Ziming Wang; Zhenwen Zou; Dajiang Zheng; Jinling Cai; Guang-Ling Song
ABSTRACT It is of great significance to establish a reliable correlation between the field exposure damage and lab simulation measurements for marine atmospheric corrosion of Mg alloys. In this study, the corrosion behaviour of pure Mg, AM60, ZE41 and AZ91D was investigated in the real marine atmosphere and the simulated environments, such as salt spray and simulated sea wave impact by means of weight-loss
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Corrosion behaviour of an epoxy paint reinforced with carbon nanoparticles Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-23 Mariana do Nascimento Silva; Elisa Kassab; Omar Ginoble Pandoli; Jeferson Leite de Oliveira; Joaquim Pereira Quintela; I. S. Bott
ABSTRACT Graphene and its derivatives, such as reduced graphene oxide (RGO) possess excellent mechanical properties and outstanding thermal and electrical conductivity. These nanoparticles offer a wide range of possibilities for applications in the oil and gas industry. This study aimed to evaluate the effect of RGO/graphite additions on the properties of anti-corrosion paints. The nanocoating of epoxy
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Impact of hydroxide ion–chloride ion concentration ratio on crack electrochemistry Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-20 A. Turnbull; Edmund J.F. Dickinson
(2020). Impact of hydroxide ion–chloride ion concentration ratio on crack electrochemistry. Corrosion Engineering, Science and Technology: Vol. 55, No. 7, pp. 574-578.
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A novel green corrosion inhibitor based on task-specific benzimidazolium ionic liquid for carbon steel in HCl Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-18 Sakineh Zafari; Ali Asghar Sarabi; Barahman Movassagh
ABSTRACT In the present study, a novel task-specific benzimidazolium ionic liquid with silyl substitution was synthesised and successfully introduced as a corrosion inhibitor. The inhibitory effect of 2-benzyl-1-butyl-3-(3-(triethoxysilyl)propyl)-1H-benzo[d]imidazolium chloride (BTOSPB) in HCl solution on steel corrosion was evaluated by electrochemical measurement and surface studies including scanning
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Exploring the corrosion performances of carbon steel in flowing natural sea water and synthetic sea waters Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-14 Yunze Xu; Qipiao Zhou; Liang Liu; Qiliang Zhang; Shide Song; Yi Huang
ABSTRACT The corrosion performances of the EH 36 carbon steel in stagnant and flowing natural sea water and synthetic sea waters were investigated. Results show that the general corrosion rates of the steels are close in stagnant natural sea water and synthetic sea waters. The corrosion rate, corrosion feature and the rust components of the steels in flowing 3.5% NaCl solution were significantly different
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Electrochemical and Raman analysis of the corrosion products formed over hot dip galvanised steel wires exposed in different environmental sites Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-14 Gopal Ji; Kitty Baert; Bart Allaert; Annick Hubin; Herman Terryn
ABSTRACT In this work, hot-dip galvanised steel wires were exposed in Belgium and Indonesia for 4.5 years and correlation of corrosion products formed on the exposed wires with their corrosion properties was studied. Corrosion products were identified with local Raman analysis and correlated with corrosion activity based on odd random phase electrochemical impedance spectroscopy and Tafel behaviour
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Development of long-term localised corrosion of cast iron pipes in backfill soils based on time of wetness Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-14 Robert B. Petersen; Tony Wells; Robert E. Melchers
ABSTRACT Parameters characterising the properties of soils used as backfill in immediate contact with cast iron pipes exhumed from a variety of soils after up to 129 years exposure are used together with average annual precipitation to estimate the average time of wetness. This is shown to correlate closely with pipe wall corrosion penetration. The possibility of microbiologically influenced corrosion
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Improving the performance of zinc-rich coatings using conductive pigments and silane Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-14 De-Ming Xie; Kai Huang; Xiao Feng; Yu-Guang Wang
ABSTRACT By analysing the results of corrosion potential, EIS, SEM and XRD test of zinc-rich coatings (ZRCs) in 3.5wt-% NaCl solution, it was found that conductive pigment (di-iron phosphide, Fe2P) can accelerate the activation and corrosion rate of zinc powders in ZRCs, but too fast corrosion rate can reduce the cathodic protection and shielding of ZRCs. Silane improves the mechanical properties and
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EUROCORR 2019: ‘New Times, New Materials, New Corrosion Challenges’ Part 4 Corros. Eng. Sci. Technol. (IF 1.706) Pub Date : 2020-05-13 R. V. Bingham; D. Nuttall
ABSTRACT The flagship congress of the European Federation of Corrosion (EFC), EUROCORR 2019, was held under the theme of ‘New Times, New Materials, New Corrosion Challenges’ at the Barcelo Sevilla Renacimiento, Seville, Spain, from 9 to 13 September. This major corrosion event will be reviewed in four parts over four issues, with the technical sessions on Cathodic Protection (including CP in the Marine
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