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Artificial neural network modelling to predict the efficiency of aluminium sacrificial anode 基于人工神经网络的铝牺牲阳极效率预测
IF 1.8 4区 材料科学
Corrosion Engineering, Science and Technology Pub Date : 2023-09-01 DOI: 10.1080/1478422X.2023.2252258
Amir Rezaei
{"title":"Artificial neural network modelling to predict the efficiency of aluminium sacrificial anode","authors":"Amir Rezaei","doi":"10.1080/1478422X.2023.2252258","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2252258","url":null,"abstract":"ABSTRACT Study explores the potential of a deep learning-based approach for predicting the current efficiency of aluminium sacrificial anodes in marine environments. The model takes into account various input variables, including the chemical composition of the sacrificial anode, pH, dissolved oxygen (DO), temperature, pressure, cathode electrode, current density, and the ratio of the surface area of the cathode to anode, with the anode current efficiency serving as the output variable. Utilising artificial neural networks in this study shows a mean absolute percentage error of 6.4% and 7.8% for the training and validation for predicting the current efficiency. The proposed model shows promising potential to predict the current efficiency of aluminium sacrificial anodes and improve the design of cathodic protection systems based on aluminium sacrificial anodes.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49173456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new approach in top-of-line corrosion studies in CO2/H2S environment CO2/H2S环境下管线顶部腐蚀研究的一种新方法
IF 1.8 4区 材料科学
Corrosion Engineering, Science and Technology Pub Date : 2023-08-28 DOI: 10.1080/1478422X.2023.2250156
J. Neshati, M. Saremi, G. Mashhadi
{"title":"A new approach in top-of-line corrosion studies in CO2/H2S environment","authors":"J. Neshati, M. Saremi, G. Mashhadi","doi":"10.1080/1478422X.2023.2250156","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2250156","url":null,"abstract":"ABSTRACT The most common way to control Top of line Corrosion (TLC) is to use corrosion inhibitors. A setup was designed to simulate the TLC conditions and measure the corrosion rate in the presence of an Imidazoline-based commercial inhibitor. The base solution was at temperature 70°C and the samples X65 steel were at 5°C and 20°C. Experiments were carried out in atmospheric conditions by purging a mixture of CO2 and H2S gases in proportions of 21% and 79%, respectively. An increase in the TLC rate was measured when the sample temperature increased. The difference between the average corrosion rate measured by weight loss and the instantaneous resulting from Tafel and linear polarisation resistance was significant in this study. Results showed that the surface temperature of the sample has a significant effect on TLC. Although the condensation rate on X65 steel sample with surface temperature of 5°C was about ten times more at 20°C, the corrosion rate was more at higher temperatures.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46443322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Long-term corrosion of abandoned offshore steel infrastructure 废弃的海上钢铁基础设施长期腐蚀
IF 1.8 4区 材料科学
Corrosion Engineering, Science and Technology Pub Date : 2023-08-25 DOI: 10.1080/1478422X.2023.2248710
R. Melchers, M. Tan
{"title":"Long-term corrosion of abandoned offshore steel infrastructure","authors":"R. Melchers, M. Tan","doi":"10.1080/1478422X.2023.2248710","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2248710","url":null,"abstract":"ABSTRACT A common practice in the offshore oil and gas (O&G) industry is to leave abandoned decommissioned pipelines and other steel infrastructure on the seafloor. Decisions about long-term environmental and other impacts and about the possibility of recovery require estimates of the likely long-term rate of deterioration, including corrosion loss and pit depth. These are considered as functions of time and environmental conditions including seawater temperature, dissolved oxygen concentration, salinity, seawater velocity, water pollution, microbiological activity, water depth, calcareous deposition and the effect of burial, all interpreted using established physico-chemical behaviour relevant for long-term exposures. Data for exposures up to some 600 years in seawaters are reviewed. Remaining research gaps and future perspectives of marine corrosion control are briefly discussed. Specific attention is given, by way of an example, to the influence on long-term durability of protective coatings and remnant cathodic protection, both areas in which further research is required.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44731617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of pH on corrosion behaviour of CoCrNi MEA imposed by alternating current in Na2CO3/NaHCO3 solution pH对CoCrNi MEA在Na2CO3/NaHCO3溶液中交流腐蚀行为的影响
IF 1.8 4区 材料科学
Corrosion Engineering, Science and Technology Pub Date : 2023-08-23 DOI: 10.1080/1478422X.2023.2247883
Chenglong Zhang, M. Zhu, Yongfeng Yuan, Shao-yi Guo, G. Wei
{"title":"Effect of pH on corrosion behaviour of CoCrNi MEA imposed by alternating current in Na2CO3/NaHCO3 solution","authors":"Chenglong Zhang, M. Zhu, Yongfeng Yuan, Shao-yi Guo, G. Wei","doi":"10.1080/1478422X.2023.2247883","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2247883","url":null,"abstract":"ABSTRACT The corrosion behaviour and mechanism of CoCrNi medium-entropy alloy (MEA) imposed by alternating current (AC) in HCO3 −/CO3 2− solution with various pH were systematically investigated via a series of corrosion tests. The results showed that with the augment of pH value, the polarisation resistance of the MEA decreased significantly, Ep shifted negatively, and ipI value increased, as well as corrosion rate was enhanced, revealing that the corrosion resistance was weakened. As solution pH increased, the formation of secondary passivation zone became easier, which may be attributed to the reaction conversion process of Cr(III) to Cr(VI) species. Moreover, the increase in pH led to an increase in defect density and a thinning of passivation film, facilitating the corrosion of the MEA. AC interference accelerated the ion exchange process and promoted the formation possibility of stable pitting. Higher iAC and pH inhibited the repassivation of metastable pitting, and increased the pitting susceptibility. Highlights The effect of pH on the corrosion behaviour of CoCrNi MEA with imposed AC was clarified. High pH and iAC accelerated the nucleation and growth of metastable pits. With increased pH and iAC, the stability and protective ability of passive film were weakened. The secondary passivation of the MEA was mainly due to the conversion of Cr(III) to Cr(VI) species. GRAPHICAL ABSTRACT","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49452655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Methodology for ranking internal corrosion-induced leakage susceptibility in oilfield pipelines 油田管道内腐蚀泄漏敏感性排序方法
IF 1.8 4区 材料科学
Corrosion Engineering, Science and Technology Pub Date : 2023-08-17 DOI: 10.1080/1478422X.2023.2244234
O. Olabisi, Amer Jarragh
{"title":"Methodology for ranking internal corrosion-induced leakage susceptibility in oilfield pipelines","authors":"O. Olabisi, Amer Jarragh","doi":"10.1080/1478422X.2023.2244234","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2244234","url":null,"abstract":"ABSTRACT This investigation focuses on the ranking of pipeline leakage susceptibility of two categories of pipeline systems. One consists of three oilfield water-handling pipeline systems and the other consists of five dry crude systems. Online corrosion monitoring (OCM) method was used for both systems, forthermore, in-line inspection (ILI) method, with Magnetic Flux leakage (MFL) tool, was also used for the dry crude systems. The OCM leakage susceptibility potential is derived from the combined severity of general corrosion, pitting corrosion, fluid corrosivity and sessile bacteria population density in the process streams. The ILI leakage susceptibility potential is derived from the average number of corrosion anomalies greater than 10% of the wall thickness and the maximum depth of the anomalies (as percentage of the wall thickness). In spite of such distinctions, the ranking of pipeline leakage susceptibility for the five dry crude pipeline segments turned out to be identical for the two methodologies.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43139060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In situ quantitative topographic measurement and corrosion behaviour of low carbon steel in chloride solutions 低碳钢在氯化物溶液中的原位定量形貌测量和腐蚀行为
IF 1.8 4区 材料科学
Corrosion Engineering, Science and Technology Pub Date : 2023-08-17 DOI: 10.1080/1478422X.2023.2242654
Ebenezer O. Fanijo, Joseph G. Thomas, Yizheng Zhu, W. Cai, A. Brand
{"title":"In situ quantitative topographic measurement and corrosion behaviour of low carbon steel in chloride solutions","authors":"Ebenezer O. Fanijo, Joseph G. Thomas, Yizheng Zhu, W. Cai, A. Brand","doi":"10.1080/1478422X.2023.2242654","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2242654","url":null,"abstract":"ABSTRACT This study applied a novel in situ spectral modulation interferometry (SMI) technique to quantitatively measure the spatiotemporal corrosion kinetics on the surface of low carbon steel. The 3D topography map showed an early formation of localised shallow pits on the surface subjected to a chloride-free solution. In contrast, the steel samples in chloride-enriched solution revealed early-age microcracks or intergranular defective sites. The quantitative analysis of the height profile data (acquired from SMI) verified the heterogeneity of the corrosion process of these samples susceptible to pitting corrosion and intergranular corrosion behaviour. The estimated volume loss followed a similar trend to the 3D surface topography data. Still, a distinct behaviour in the volume loss was observed when compared to the void volume obtained from the electrochemical data.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43765583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrosion resistance of structural metals depending on the sample orientation and initial exposure conditions in coastal and rural atmospheres. Part 1. Corrosivity toward structural metals at coastal and rural test sites under various exposure conditions 结构金属的耐腐蚀性取决于沿海和农村大气中的样品方向和初始暴露条件。第1部分。不同暴露条件下沿海和农村试验场对结构金属的腐蚀性
IF 1.8 4区 材料科学
Corrosion Engineering, Science and Technology Pub Date : 2023-08-17 DOI: 10.1080/1478422X.2023.2245642
Yu. M. Panchenko, A. Marshakov, L. Nikolaeva, T. Igonin
{"title":"Corrosion resistance of structural metals depending on the sample orientation and initial exposure conditions in coastal and rural atmospheres. Part 1. Corrosivity toward structural metals at coastal and rural test sites under various exposure conditions","authors":"Yu. M. Panchenko, A. Marshakov, L. Nikolaeva, T. Igonin","doi":"10.1080/1478422X.2023.2245642","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2245642","url":null,"abstract":"ABSTRACT Four 1-year tests of metal samples (carbon steel, zinc, copper, aluminum, and D16 alloy) were carried out at locations with coastal and rural atmospheres to determine corrosion losses and the rate of chloride deposition ([Cl-]) on the upper and lower sample sides. [Cl-] were determined for different orientations relative to the sea winds on coastal sites. A methodology for testing metal samples is presented and the values of the first-year corrosion losses of metals (C1) are reported. It is shown that the corrosion of metals is significantly affected by the season of when the samples are installed. The atmosphere corrosivity under each conditions of sample exposure is estimated by the C1 values calculated using the developed dose-response functions (DRFs). It has been shown that the DRFs can be used to predict C1 and estimate the atmosphere corrosivity categories at locations with various types of atmosphere and under various exposure conditions.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41325564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrosion behaviour of heterogeneous antimony-copper layers in chloride media 非均匀锑铜层在氯化物介质中的腐蚀行为
IF 1.8 4区 材料科学
Corrosion Engineering, Science and Technology Pub Date : 2023-08-17 DOI: 10.1080/1478422X.2023.2247661
B. Tzaneva, V. Kostov
{"title":"Corrosion behaviour of heterogeneous antimony-copper layers in chloride media","authors":"B. Tzaneva, V. Kostov","doi":"10.1080/1478422X.2023.2247661","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2247661","url":null,"abstract":"ABSTRACT The electrodeposited antimony-copper coatings demonstrate a varying degree of chemical and structural heterogeneity that determines their corrosion behaviour in 0.5M sodium chloride. The electrochemical and corrosion properties of layers at open circuit potential were investigated by electrochemical impedance spectroscopy and optical surface observation. Corrosion polarisation tests revealed that anodic behaviour of Sb–Cu alloys is similar for the all tested samples and depends on the antimony chemical resistance. Under anodic polarisation up to about −0.03 VAg/AgCl a multistep process of anodic oxide film transformation was registered. The observations by SEM revealed that at a higher anodic polarisation many submicron-sized pits are formed. The formation of microgalvanic corrosion cells results in preferential dissolution of the antimony phase at both OCP and anodic polarisation.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43330172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vapour phase assembly of ultrathin coatings from alanine ternary complex on the carbon steel surface with enhanced corrosion resistance 丙氨酸三元配合物超薄涂层在碳钢表面的气相组装，具有增强的耐蚀性
IF 1.8 4区 材料科学
Corrosion Engineering, Science and Technology Pub Date : 2023-08-16 DOI: 10.1080/1478422X.2023.2243736
Qiang Wang, Liangxing Ma, Jiajia An, Daquan Zhang, Weizhe Li, L. Gao
{"title":"Vapour phase assembly of ultrathin coatings from alanine ternary complex on the carbon steel surface with enhanced corrosion resistance","authors":"Qiang Wang, Liangxing Ma, Jiajia An, Daquan Zhang, Weizhe Li, L. Gao","doi":"10.1080/1478422X.2023.2243736","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2243736","url":null,"abstract":"ABSTRACT A novel alanine ternary complex (ALA-T) is prepared by the reaction of alanine (ALA), phosphoric acid, and dibutylamine. FTIR technique is used to characterise its structure. The weight-loss experiments in the closed space study the volatility of the alanine ternary complex. The ultrathin coating is formed on the surface of carbon steel by vapour phase assembly of the alanine ternary complex. The thickness of the coatings is measured using spectroscopic ellipsometry. The inhibition effect of ultrathin coatings on the corrosion of carbon steel is studied by the volatile-inhibiting ability (VIA) and the electrochemical tests. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) are utilised to examine the morphology and composition of the carbon steel surface. It shows that the complex ultrathin coating has good corrosion inhibition for carbon steel. The protection mechanism of the ultrathin coating is discussed and analysed.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44809719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Cyclic oxidation and hot corrosion performance of direct metal laser sintered and wrought alloy 718 at 800°C in air and molten salts containing Na2SO4, V2O5 and NaCl 直接金属激光烧结变形合金718在空气和含Na2SO4、V2O5和NaCl的熔盐中800℃的循环氧化和热腐蚀性能
IF 1.8 4区 材料科学
Corrosion Engineering, Science and Technology Pub Date : 2023-08-14 DOI: 10.1080/1478422X.2023.2244236
S. Muthu, Dhinakaran Veeman, Shiladithya Paul, M. Prem kumar
{"title":"Cyclic oxidation and hot corrosion performance of direct metal laser sintered and wrought alloy 718 at 800°C in air and molten salts containing Na2SO4, V2O5 and NaCl","authors":"S. Muthu, Dhinakaran Veeman, Shiladithya Paul, M. Prem kumar","doi":"10.1080/1478422X.2023.2244236","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2244236","url":null,"abstract":"ABSTRACT The main aim of this research work is to investigate the high-temperature cyclic corrosion performance of the wrought and direct metal laser sintered (DMLS) alloy 718 in the air and molten salts NaCl-90%Na2SO4 and three salt mixture (3SM) Na2SO4-10%V2O5-10%NaCl atmosphere for 120 h at 800°C. The microstructure of the wrought and DMLS alloy illustrated the austenitic and dendrite structure. Scanning electron microscope (SEM) and X-ray diffraction (XRD) were used to evaluate the structure and phase constitutions of the scale. Visual and microstructural evaluation of the alloy post-exposure indicates that corrosion is more prevalent in molten salt conditions, when compared to air, and Cl-species induced the active oxidation in molten salt. The oxide film development and damage mechanism were detailed and explained by a cross-sectional investigation. Significant spalling and sputtering were also noticed in the S3 salt mixture. This might be attributed to the rapid formation of oxide scales by vanadate, followed by dissolution of the oxide in molten sulphate and chloride. The results divulged that both AM-built and wrought alloy exhibited the similar corrosion properties and both the alloys were undergone severe degradation in MS condition. Highlights Alloy 718 was fabricated successfully by the direct metal laser sintering (DMLS) method. Cyclic high-temperature oxidation and corrosion of the alloy were studied at 800°C. The oxidised sample exhibits a lower weight gain with no damage. Due to chlorination and sulfidation, the corroded samples exhibited more oxidation and susceptible. GRAPHICAL ABSTRACT","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45875914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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