International Journal of Corrosion最新文献_第10页

Electrochemical Studies of Monoterpenic Thiosemicarbazones as Corrosion Inhibitor for Steel in 1 M HCl 单萜缩氨基硫脲作为钢铁缓蚀剂在1M盐酸中的电化学研究

IF 3.1

International Journal of Corrosion Pub Date : 2018-03-21 DOI: 10.1155/2018/9212705

R. Idouhli, A. N. Ousidi, Y. Koumya, A. Abouelfida, A. Benyaich, A. Auhmani, M. Y. A. Itto

{"title":"Electrochemical Studies of Monoterpenic Thiosemicarbazones as Corrosion Inhibitor for Steel in 1 M HCl","authors":"R. Idouhli, A. N. Ousidi, Y. Koumya, A. Abouelfida, A. Benyaich, A. Auhmani, M. Y. A. Itto","doi":"10.1155/2018/9212705","DOIUrl":"https://doi.org/10.1155/2018/9212705","url":null,"abstract":"We have studied the inhibitory effect of some Monoterpenic Thiosemicarbazones on steel corrosion in 1 M HCl solution. The potentiodynamic polarization and electrochemical impedance spectroscopy were used. The Monoterpenic Thiosemicarbazones have inhibited significantly the dissolution of steel. The inhibition efficiency increased with increasing inhibitor concentration and also with the increase in temperature (293–323 K). Furthermore, the results obtained revealed that the adsorption of inhibitor on steel surface obeys Langmuir adsorption model and the thermodynamic parameters such as enthalpy and activation energy were determined. The scanning electron microscopy combined with dispersive X-ray spectroscopy examinations were used to see the shape of the surface morphology and to determine the elemental composition. Scanning electron microscope (SEM) images show that the surface damage decreases when the inhibitor is added. The quantum chemical calculations using density functional theory (DFT) were performed in order to provide some insights into the electronic density distribution as well as the nature of inhibitor-steel interaction.","PeriodicalId":13893,"journal":{"name":"International Journal of Corrosion","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2018-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2018/9212705","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47708009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 42

Twin-Wire Pulsed Tandem Gas Metal Arc Welding of API X80 Steel Linepipe API X80钢管双线脉冲串联气体金属电弧焊

IF 3.1

International Journal of Corrosion Pub Date : 2018-03-11 DOI: 10.1155/2018/7284246

Wu Wenhao, Zhao Ming, W. Haiyan, Yanxi Zhang, Wu Tong

引用次数: 1

Synthesis of a Novel Gemini Cationic Surfactant and Its Inhibition Behaviour and Mechanism Study on 2024 Al-Cu-Mg Alloy in Acid Solution 新型Gemini阳离子表面活性剂的合成及其对2024 Al-Cu-Mg合金在酸性溶液中的缓蚀行为及机理研究

IF 3.1

International Journal of Corrosion Pub Date : 2018-03-01 DOI: 10.1155/2018/9890504

Juan Du, Q. Chen, Qin Liu, Xuelan Hu

{"title":"Synthesis of a Novel Gemini Cationic Surfactant and Its Inhibition Behaviour and Mechanism Study on 2024 Al-Cu-Mg Alloy in Acid Solution","authors":"Juan Du, Q. Chen, Qin Liu, Xuelan Hu","doi":"10.1155/2018/9890504","DOIUrl":"https://doi.org/10.1155/2018/9890504","url":null,"abstract":"Isopropylamine was taken as a raw material to synthesize a new multi-alkyl multiple quaternary-ammonium salts gemini surfactant bis[2-hydroxy-3-(dodecyldimethylammonio)propyl]-isopropylamine dichloride. The structure of the synthetic product was characterized by 1H NMR and FTIR. The surface activity was investigated; the inhibition efficiencies and inhibition mechanism of the synthetic product were studied by weight loss method, electrochemical method, microscopic morphology observation, and adsorption model calculation. The results indicate that cmc of synthetic product was 9.204 × mol/L; when the concentrations were lower than cmc, the inhibition efficiencies rose substantially, which was up to 89.3% with the concentration of 9.204 × mol/L; when they were higher than cmc, inhibition efficiencies were basically unchanged; polarization tests showed that the synthesis product could restrain both anodic and cathodic reactions; when the concentrations were lower than cmc, the adsorption of the synthetic product conformed to the Langmuir model, which formed monolayer on the 2024 Al-Cu-Mg alloy surface; when they were higher than cmc, it formed bilayer, so the adsorption of the synthetic product did not conform to the Langmuir model anymore.","PeriodicalId":13893,"journal":{"name":"International Journal of Corrosion","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2018/9890504","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47331035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Nanocomposite Coatings: Preparation, Characterization, Properties, and Applications 纳米复合涂层:制备、表征、性能和应用

IF 3.1

International Journal of Corrosion Pub Date : 2018-02-13 DOI: 10.1155/2018/4749501

P. Nguyen-Tri, T. Nguyen, Pascal Carrière, Cuong Ngo Xuan

引用次数: 129

Experimental Investigation into Corrosion Effect on Mechanical Properties of High Strength Steel Bars under Dynamic Loadings 动载下腐蚀对高强钢筋力学性能影响的试验研究

IF 3.1

International Journal of Corrosion Pub Date : 2018-01-01 DOI: 10.1155/2018/7169681

Hui Chen, Jinjin Zhang, Jin Yang, F. Ye

{"title":"Experimental Investigation into Corrosion Effect on Mechanical Properties of High Strength Steel Bars under Dynamic Loadings","authors":"Hui Chen, Jinjin Zhang, Jin Yang, F. Ye","doi":"10.1155/2018/7169681","DOIUrl":"https://doi.org/10.1155/2018/7169681","url":null,"abstract":"The tensile behaviors of corroded steel bars are important in the capacity evaluation of corroded reinforced concrete structures. The present paper studies the mechanical behavior of the corroded high strength reinforcing steel bars under static and dynamic loading. High strength reinforcing steel bars were corroded by using accelerated corrosion methods and the tensile tests were carried out under different strain rates. The results showed that the mechanical properties of corroded high strength steel bars were strain rate dependent, and the strain rate effect decreased with the increase of corrosion degree. The decreased nominal yield and ultimate strengths were mainly caused by the reduction of cross-sectional areas, and the decreased ultimate deformation and the shortened yield plateau resulted from the intensified stress concentration at the nonuniform reduction. Based on the test results, reduction factors were proposed to relate the tensile behaviors with the corrosion degree and strain rate for corroded bars. A modified Johnson-Cook strength model of corroded high strength steel bars under dynamic loading was proposed by taking into account the influence of corrosion degree. Comparison between the model and test results showed that proposed model properly describes the dynamic response of the corroded high strength rebars.","PeriodicalId":13893,"journal":{"name":"International Journal of Corrosion","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2018-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2018/7169681","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64736045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Numerical Simulation of Galvanic Corrosion between Carbon Steel and Low Alloy Steel in a Bolted Joint 碳钢与低合金钢螺栓连接中镀锌腐蚀的数值模拟

IF 3.1

International Journal of Corrosion Pub Date : 2017-12-27 DOI: 10.1155/2017/6174904

R. Radouani, Y. Ech-Charqy, M. Essahli

{"title":"Numerical Simulation of Galvanic Corrosion between Carbon Steel and Low Alloy Steel in a Bolted Joint","authors":"R. Radouani, Y. Ech-Charqy, M. Essahli","doi":"10.1155/2017/6174904","DOIUrl":"https://doi.org/10.1155/2017/6174904","url":null,"abstract":"The galvanic corrosion of a bolt joint combining carbon steel end plate and low alloy steel bolt was investigated electrochemically in a 1 M HCl solution. The corrosion parameters of the joint components were used for numerical simulation using Comsol Multiphysics software to analyze the galvanic corrosion behavior at the contact zone between the head bolt and the end plate. In this research work we evaluate the variation of the corrosion rate in the steel end plate considered as the anode, in order to determine the lifetime of the bolted assembly used in steel structures. Three materials (20MnCr5, 42CrMo4, and 32CrMoV13) and three bolts (M12, M16, and M20) were tested in two thicknesses of electrolyte 1 M HCl ( = 1 mm, = 20 mm). It is found that the corrosion rate of the anode part (end plate) is higher for 32CrMoV13 materials and it increases if both diameter of the bolt and thickness of the electrolyte increase (Cr(M20) > Cr(M16) > Cr(M12) and Cr( = 20 mm) > Cr( = 1 mm)). This corrosion rate is higher in the contact area between the bolt head and the end plate, and it decreases if we move away from this contact area.","PeriodicalId":13893,"journal":{"name":"International Journal of Corrosion","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2017/6174904","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45010420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Electrolyte Composition for Distinguishing Corrosion Mechanisms in Steel Alloy Screening 用于识别钢合金屏蔽腐蚀机理的电解质成分

IF 3.1

International Journal of Corrosion Pub Date : 2017-12-24 DOI: 10.1155/2017/9425864

Ingmar Bösing, J. Thöming, M. Baune

引用次数: 10

Experimental Study on the Influence of Sulfate Reducing Bacteria on the Metallic Corrosion Behavior under Disbonded Coating 硫酸盐还原菌对脱粘涂层下金属腐蚀行为影响的实验研究

IF 3.1

International Journal of Corrosion Pub Date : 2017-10-23 DOI: 10.1155/2017/9740817

Qing-Miao Ding, Li-Chun Fang, Yanyu Cui, Yujun Wang

{"title":"Experimental Study on the Influence of Sulfate Reducing Bacteria on the Metallic Corrosion Behavior under Disbonded Coating","authors":"Qing-Miao Ding, Li-Chun Fang, Yanyu Cui, Yujun Wang","doi":"10.1155/2017/9740817","DOIUrl":"https://doi.org/10.1155/2017/9740817","url":null,"abstract":"A rectangle disbonded coating simulation device was used to research the effect of sulfate reducing bacteria (SRB) on the metallic corrosion behavior under disbonded coating by the electrochemical method. The results showed that the metal self-corrosion potential at the same test point had little change in the initial experiment stage, whether the solution was without or with SRB. The potential amplitude in the solution with SRB was larger than that without SRB in the later corrosion period. The corrosion current density of the metal at the same test point increased gradually over time in the solution with or without SRB, and SRB could accelerate the corrosion of the metal in the disbonded crevice. The metal self-corrosion potential in the crevice had little change in the SRB solution environment after adding the fungicide, but the corrosion current density decreased significantly. That meant the growth and reproduction of SRB were inhibited after adding the fungicide, so the metal corrosion rate slowed down. Among the three kinds of solution environment, increasing the coating disbonded thickness could accelerate the corrosion of the metal in the crevice, and it was the largest in the solution with SRB.","PeriodicalId":13893,"journal":{"name":"International Journal of Corrosion","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2017-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2017/9740817","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49297151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Effect of Microstructure on Hydrogen Diffusion in Weld and API X52 Pipeline Steel Base Metals under Cathodic Protection 阴极保护下焊缝及API X52管线钢基体中氢扩散的微观组织影响

IF 3.1

International Journal of Corrosion Pub Date : 2017-10-12 DOI: 10.1155/2017/4927210

R. C. Souza, L. R. Pereira, L. M. Starling, J. N. Pereira, T. A. Simões, J. Gomes, A. Bueno

引用次数: 7

Research of Microorganism Corrosion Properties of 2024-T31 Aluminum-Magnesium Alloy in Oil-Water System 2024-T31铝镁合金油水体系微生物腐蚀性能研究

IF 3.1

International Journal of Corrosion Pub Date : 2017-04-11 DOI: 10.1155/2017/5041347

Yanyu Cui, Jia Li, Qing-Miao Ding

引用次数: 3