International Journal of Corrosion最新文献_第2页

Strength of Vegetated Coal-Bearing Soil under Dry-Wet Cycles: An Experimental Study 干湿循环作用下植被煤系土强度试验研究

IF 3.1

International Journal of Corrosion Pub Date : 2021-10-21 DOI: 10.1155/2021/6657160

Gang Huang, Ming Zheng

{"title":"Strength of Vegetated Coal-Bearing Soil under Dry-Wet Cycles: An Experimental Study","authors":"Gang Huang, Ming Zheng","doi":"10.1155/2021/6657160","DOIUrl":"https://doi.org/10.1155/2021/6657160","url":null,"abstract":"Strength of vegetated coal-bearing soil is of great significance to evaluate the shallow stability of vegetated slopes in coal-bearing soil regions. This paper takes D-W cycles, dry density, water content, and vegetation root (VR) content as four factors and carries out the triaxial test for the orthogonal design of vegetated coal-bearing soil in southern China. The strength curves of vegetated coal-bearing soil under four factors were obtained. The Taguchi method was used to quantitatively analyse the effects of four factors. The microstructure of coal-bearing soil under D-W cycles and the theory of soil reinforcement by VR were discussed. The results indicated that D-W cycles had a significant effect on the cohesion and internal friction angle (\u0000 \u0000 P\u0000 <\u0000 0.05\u0000 \u0000 ). The internal friction angle was little affected by the water content and VR content, which had considerable influence on the cohesion. The cohesion could be improved with less than 2% VR content. The cohesion was the largest for no D-W cycles, 10% water content, and 2% VR content. The links between mineral particles go from a stable layered structure to unsteadiness chain structure with the increase in the number of D-W cycles.","PeriodicalId":13893,"journal":{"name":"International Journal of Corrosion","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46130903","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: 2

Evaluation of Corrosion Inhibition Efficiency of Aluminum Alloy 2024 by Diaminostilbene and Azobenzene Schiff Bases in 1 M Hydrochloric Acid 二氨基二苯乙烯和偶氮苯席夫碱对2024铝合金缓蚀性能的评价 M盐酸

IF 3.1

International Journal of Corrosion Pub Date : 2021-10-21 DOI: 10.1155/2021/5869915

Shobha Bhaskara, Sanaulla Pathapalya Fakrudeen, Tegene Desalegn, H. Murthy, V. Bheemaraju

{"title":"Evaluation of Corrosion Inhibition Efficiency of Aluminum Alloy 2024 by Diaminostilbene and Azobenzene Schiff Bases in 1 M Hydrochloric Acid","authors":"Shobha Bhaskara, Sanaulla Pathapalya Fakrudeen, Tegene Desalegn, H. Murthy, V. Bheemaraju","doi":"10.1155/2021/5869915","DOIUrl":"https://doi.org/10.1155/2021/5869915","url":null,"abstract":"The Schiff base compounds N,N\u0000 \u0000 \u0000 \u0000 \u0000 ′\u0000 \u0000 \u0000 \u0000 -bis(salicylidine)-4,4\u0000 \u0000 \u0000 \u0000 \u0000 ′\u0000 \u0000 \u0000 \u0000 –diaminostilbene(SDS) and N,N\u0000 \u0000 \u0000 \u0000 \u0000 ′\u0000 \u0000 \u0000 \u0000 -bis(salicylidine)-4,4\u0000 \u0000 \u0000 \u0000 \u0000 ′\u0000 \u0000 \u0000 \u0000 -diamino azobenzene(SDA) were synthesized, and their molecular structure was determined by FT-IR and 1H NMR. The corrosion inhibitions of Schiff base compounds on aluminum alloy 2024 in 1 M hydrochloric acid were evaluated by potentiodynamic polarization, impedance techniques, weight loss method, and scanning electron microscopic technique. The potentiodynamic polarization (PDP) studies revealed that SDS and SDA compounds acted predominantly as cathodic inhibitors. The electrochemical impedance spectroscopic (EIS) parameters confirmed the adsorption of SDS and SDA molecules over the surface of aluminum alloy 2024 alloy by forming an inhibitive layer. The weight loss studies showed that the inhibition efficiency of these compounds increases directly with concentration and decreases with an increase in solution temperature and immersion time. The thermodynamic parameters were calculated to investigate the mechanism of corrosion inhibition. The SDA was found to be more effective than SDS and followed the Langmuir adsorption isotherm model. The scanning electron microscopy (SEM) results revealed that the deterioration of the alloy surface is minimal in the presence of an inhibitor. Both Schiff base molecules exhibited superior corrosion inhibition for aluminum alloy 2024 alloy in HCl medium.","PeriodicalId":13893,"journal":{"name":"International Journal of Corrosion","volume":"1 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2021-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41445875","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 Alternating Stray Current Density on Corrosion Behavior of X80 Steel under Disbonded Coating 交流杂散电流密度对脱粘涂层下X80钢腐蚀行为的影响

IF 3.1

International Journal of Corrosion Pub Date : 2021-06-25 DOI: 10.1155/2021/8833346

Qing-Miao Ding, Yongxiang Qin, Tao Shen, Yuning Gao

引用次数: 1

Investigation of Corrosion Protection of Austenitic Stainless Steel in 5.5 M Polluted Phosphoric Acid Using 5-Azidomethyl-7-morpholinomethyl-8-hydroxyquinoline as an Ecofriendly Inhibitor 5-叠氮甲基-7-morpholin -甲基-8-羟基喹啉对奥氏体不锈钢在5.5 M污染的磷酸中的防腐研究

IF 3.1

International Journal of Corrosion Pub Date : 2021-05-13 DOI: 10.1155/2021/6666811

Aimad Mazkour, S. El hajjaji, N. Labjar, E. Lotfi, M. El Mahi

{"title":"Investigation of Corrosion Protection of Austenitic Stainless Steel in 5.5 M Polluted Phosphoric Acid Using 5-Azidomethyl-7-morpholinomethyl-8-hydroxyquinoline as an Ecofriendly Inhibitor","authors":"Aimad Mazkour, S. El hajjaji, N. Labjar, E. Lotfi, M. El Mahi","doi":"10.1155/2021/6666811","DOIUrl":"https://doi.org/10.1155/2021/6666811","url":null,"abstract":"The use of 5-azidomethyl-7-morpholinomethyl-8-hydroxyquinoline (AMH) as a corrosion inhibitor for AISI 321 stainless steel in 5.5 M polluted phosphoric acid was investigated using the hydrogen evolution technique, linear polarization curves, and impedance spectroscopy. Impedance measurements revealed that the dissolution of AISI 321 in 5.5 M polluted phosphoric acid was controlled by an activation mechanism, unchanged even with the addition of AMH at different concentrations. Polarization results showed that the inhibition ability was enhanced with increasing inhibitor concentration. AMH acted as a mixed-type inhibitor by random adsorption on the alloy surface, whatever the nature of the reaction that is taking place. The adsorption of AMH on the AISI 321 surface was also discussed via the Langmuir adsorption isotherm. The influence of elevating the solution temperature on the corrosion inhibition performance was studied. A quantum chemistry study with the DFT method was also conducted, which supplied a logical and exploitable theoretical explanation of the adsorption and the inhibition action of AMH on AISI 321.","PeriodicalId":13893,"journal":{"name":"International Journal of Corrosion","volume":"2021 1","pages":"1-15"},"PeriodicalIF":3.1,"publicationDate":"2021-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64763187","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: 5

Barrier Corrosion Protection Properties of Metakaolin Clay-Kadilux Epoxy Coatings on Galvanized Steel 偏高岭土- kadilux环氧涂料对镀锌钢的屏障防腐性能

IF 3.1

International Journal of Corrosion Pub Date : 2021-03-15 DOI: 10.1155/2021/1049021

Fantaye Tasew, Ganesh Thothadri

引用次数: 2

Bond Deterioration of Corroded-Damaged Reinforced Concrete Structures Exposed to Severe Aggressive Marine Environment 海洋环境腐蚀损伤钢筋混凝土结构粘结劣化研究

IF 3.1

International Journal of Corrosion Pub Date : 2021-03-02 DOI: 10.1155/2021/8847716

Cecielle N. Dacuan, Virgilio Y. Abellana

{"title":"Bond Deterioration of Corroded-Damaged Reinforced Concrete Structures Exposed to Severe Aggressive Marine Environment","authors":"Cecielle N. Dacuan, Virgilio Y. Abellana","doi":"10.1155/2021/8847716","DOIUrl":"https://doi.org/10.1155/2021/8847716","url":null,"abstract":"Cracks lead to a reduction of the bond between concrete and reinforcing steel rebars. A considerable decrease in the bond strength is more dangerous to a structural element’s safety than the loss of the cross-sectional steel reinforcement area. The purpose of this study is to evaluate the bond strength of corroded-damaged structures exposed to severely aggressive marine environments. Eighteen (18) cube specimens with dimensions of \u0000 \u0000 200\u0000 \u0000 mm\u0000 \u0000 x\u0000 \u0000 200\u0000 \u0000 mm\u0000 \u0000 were cast. They were reinforced with three (3) different diameters of deformed steel and were grouped as unconfined and confined. The specimen was accelerated under a simulated corrosive environment. The experiment results reveal that the bond strength of concrete and steel reinforcement is susceptible to corrosion levels. The degree of corrosion significantly affects the bond strength of concrete and steel. The bond strength and the average crack width have a strong correlation; a minimal amount of corrosion with a minimum crack width of 0.03 mm after cracking reduces the bond strength to an unacceptable level. Stirrups confinement has a significant influence on the bond strength; it provides an excellent means to counteract bond loss. The loss of bond directly affects the serviceability and ultimate strength of reinforced concrete structures. There is an exponential relationship between cement and steel reinforcement’s bond strength with the serviceability and residual strength of reinforced concrete structures.","PeriodicalId":13893,"journal":{"name":"International Journal of Corrosion","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2021-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45787774","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

Role of Atmospheric Aerosol Content on Atmospheric Corrosion of Metallic Materials 大气气溶胶含量对金属材料大气腐蚀的影响

IF 3.1

International Journal of Corrosion Pub Date : 2021-02-12 DOI: 10.1155/2021/6637499

M. Emetere, S. Afolalu, L. Amusan, A. Mamudu

引用次数: 3

Corrosion and Hardness Behaviour of Al/GO Nanocomposites Processed by the Ultrasonic Gravitational Stir Casting Method 超声重力搅拌铸造Al/GO纳米复合材料的腐蚀和硬度行为

IF 3.1

International Journal of Corrosion Pub Date : 2021-01-28 DOI: 10.1155/2021/6658186

S. Narayanan, G. G. Sozhamannan, K. Hemalatha, K. Velmurugan, V. Venkatachalapathy

引用次数: 10

Corrosion Inhibition of 3003 Aluminum Alloy in Molar Hydrochloric Acid Solution by Olive Oil Mill Liquid By-Product 橄榄油磨液副产物对3003铝合金在盐酸溶液中的缓蚀作用

IF 3.1

International Journal of Corrosion Pub Date : 2021-01-27 DOI: 10.1155/2021/6662395

M. Chadili, M. Rguiti, B. El Ibrahimi, R. Oukhrib, A. Jmiai, M. Beelkhaouda, L. Bammou, M. Hilali, L. Bazzi

{"title":"Corrosion Inhibition of 3003 Aluminum Alloy in Molar Hydrochloric Acid Solution by Olive Oil Mill Liquid By-Product","authors":"M. Chadili, M. Rguiti, B. El Ibrahimi, R. Oukhrib, A. Jmiai, M. Beelkhaouda, L. Bammou, M. Hilali, L. Bazzi","doi":"10.1155/2021/6662395","DOIUrl":"https://doi.org/10.1155/2021/6662395","url":null,"abstract":"According to the literature, the works on the inhibition of aluminum alloy corrosion using naturally occurring compounds are limited. For this, the inhibiting effect of oil mill liquid by-product (OMW) on the corrosion of 3003 aluminum alloy (AA3003) in molar hydrochloric acid solution was evaluated using electrochemical techniques. In parallel, a computational approach based on DFT/B3LYP and Monte Carlo methods was used to understand the inhibition process under electronic and atomic scales, respectively. The experimental results reveal that OMW has a good inhibiting effect on the corrosion of AA3003 alloy in the tested solution and acts as a cathodic inhibitor. The inhibitory efficiency increases by increasing OMW concentration to attain 89% at 6.0 ppm. The effect of temperature shows that the inhibition efficiency of OMW decreases with temperature rising. Nevertheless, a good prevention capacity of 83% is obtained at 338 K. Such interesting achieved protection property was attributed to the adsorption of OMW constituents onto the alloy surface via a mixed physichemisorption process. This process is found to obey the Langmuir adsorption isotherm. Furthermore, the activation thermodynamic parameters of the corrosion process of AA3003 alloy were also determined and discussed. The computational outcomes outlined the ability of the OMW components to interact favorably with the metal surface, hence the formation of a protective layer, which justified the observed inhibition behaviors. Conferring to the present study, OMW can be used as a good green corrosion inhibitor for AA3003 alloy in the acidic medium.","PeriodicalId":13893,"journal":{"name":"International Journal of Corrosion","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2021-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43913908","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: 18

Use of a Metallic Complex Derived from Curcuma Longa as Green Corrosion Inhibitor for Carbon Steel in Sulfuric Acid 姜黄金属配合物作为碳钢在硫酸中的绿色缓蚀剂的应用

IF 3.1

International Journal of Corrosion Pub Date : 2021-01-16 DOI: 10.1155/2021/6695299

E. A. Florez-Frias, V. Barba, R. López‐Sesenes, L. Landeros-Martínez, J. F. los Rios, M. Casales, J. González-Rodríguez

引用次数: 9