The effect of O2 on crevice corrosion of N80 carbon steel in acidic NaCl solution is investigated. Crevice corrosion of N80 carbon steel could be initiated with or without O2 in acidic NaCl solution. A deep corrosion groove could be formed near the crevice mouth after crevice corrosion. The crevice corrosion of N80 carbon steel is ascribed to the increased pH inside the crevice in acidic NaCl solution. The presence of O2 in the solution could enhance the cathodic reaction processes outside the crevice, but it is not significant for the cathodic reaction processes inside the crevice. The galvanic corrosion effect between inner and outer steels could be enhanced by O2 and then promote crevice corrosion.
{"title":"The crevice corrosion behavior of N80 carbon steel in acidic NaCl solution: The effect of O2","authors":"Yizhou Li, Jie Mu, Zhongyu Cui, Xin Wang","doi":"10.1002/maco.202112595","DOIUrl":"https://doi.org/10.1002/maco.202112595","url":null,"abstract":"The effect of O2 on crevice corrosion of N80 carbon steel in acidic NaCl solution is investigated. Crevice corrosion of N80 carbon steel could be initiated with or without O2 in acidic NaCl solution. A deep corrosion groove could be formed near the crevice mouth after crevice corrosion. The crevice corrosion of N80 carbon steel is ascribed to the increased pH inside the crevice in acidic NaCl solution. The presence of O2 in the solution could enhance the cathodic reaction processes outside the crevice, but it is not significant for the cathodic reaction processes inside the crevice. The galvanic corrosion effect between inner and outer steels could be enhanced by O2 and then promote crevice corrosion.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"21 1","pages":"281 - 290"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73046908","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}
Rui Guo, Pengyvan Yang, F. Mao, Jinlong Li, Lei Chen, Guojun Yu, D. Macdonald
This paper aims at studying the complex galvanic corrosion of galvanized steel/red copper of submarine cable armor layer in simulated seawater environments. The variation of the galvanic corrosion rate of the cable armor layer as a function of time under different environmental factors (pH, [Cl−], dissolved oxygen, etc.) has been explored. The surface morphology of the galvanized steel after galvanic corrosion was observed by scanning electron microscopy. The results indicate that galvanized steel and red copper are susceptible to galvanic corrosion when ohmically coupled in NaCl solution. Red copper, with the more positive electromotive potential, acts as the cathode in the galvanized steel/red copper galvanic couple and accelerates the corrosion of the galvanized steel. The galvanic effect of red copper on galvanized steel in NaCl solution increases with the increasing [H+] and dissolved oxygen. However, with increasing [Cl−], the galvanic effect of red copper on galvanized steel initially increases but then decreases, resulting in a maximum in the corrosion rate.
{"title":"Electrochemical noise studies on complex galvanic corrosion of submarine cable armor layer in artificial seawater","authors":"Rui Guo, Pengyvan Yang, F. Mao, Jinlong Li, Lei Chen, Guojun Yu, D. Macdonald","doi":"10.1002/maco.202112803","DOIUrl":"https://doi.org/10.1002/maco.202112803","url":null,"abstract":"This paper aims at studying the complex galvanic corrosion of galvanized steel/red copper of submarine cable armor layer in simulated seawater environments. The variation of the galvanic corrosion rate of the cable armor layer as a function of time under different environmental factors (pH, [Cl−], dissolved oxygen, etc.) has been explored. The surface morphology of the galvanized steel after galvanic corrosion was observed by scanning electron microscopy. The results indicate that galvanized steel and red copper are susceptible to galvanic corrosion when ohmically coupled in NaCl solution. Red copper, with the more positive electromotive potential, acts as the cathode in the galvanized steel/red copper galvanic couple and accelerates the corrosion of the galvanized steel. The galvanic effect of red copper on galvanized steel in NaCl solution increases with the increasing [H+] and dissolved oxygen. However, with increasing [Cl−], the galvanic effect of red copper on galvanized steel initially increases but then decreases, resulting in a maximum in the corrosion rate.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"112 1","pages":"379 - 392"},"PeriodicalIF":0.0,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82994348","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}
Sathiyapriya T., M. Dhayalan, Jagadeeswari R., Rathika Govindasamy, Mohammed Riyaz S. U., Moonis Ali Khan, M. Sillanpää
The present investigation was aimed at exploring the anticorrosive behavior of bio‐organic Auraucaria heterophylla gum exudate (AHGE) on mild steel (MS) corrosion in 1 M phosphoric acid solution by weight loss technique, electrochemical studies, and computational analysis. Additionally, the performance was analyzed by morphological and quantum chemical analyses. The weight loss data revealed that AHGE showed 80% of inhibition efficiency at 303 K temperature. Inhibitor adsorption on MS was in line with Langmuir and Tempkin adsorption isotherms. Potentiodynamic studies showed that the investigated AHGE performed as a mixed‐type inhibitor. Electrochemical parameters like charge transfer resistance, double‐layer capacitance, and inhibition efficiency were determined and presented. Results obtained through computational analysis, scanning electron microscopy/energy dispersive X‐ray analysis, and atomic force microscopy studies were well supported by the inhibitive potential of AHGE.
{"title":"Assessing bioorganic gum performance as a corrosion inhibitor in phosphoric acid medium: Electrochemical and computational analysis","authors":"Sathiyapriya T., M. Dhayalan, Jagadeeswari R., Rathika Govindasamy, Mohammed Riyaz S. U., Moonis Ali Khan, M. Sillanpää","doi":"10.1002/maco.202112742","DOIUrl":"https://doi.org/10.1002/maco.202112742","url":null,"abstract":"The present investigation was aimed at exploring the anticorrosive behavior of bio‐organic Auraucaria heterophylla gum exudate (AHGE) on mild steel (MS) corrosion in 1 M phosphoric acid solution by weight loss technique, electrochemical studies, and computational analysis. Additionally, the performance was analyzed by morphological and quantum chemical analyses. The weight loss data revealed that AHGE showed 80% of inhibition efficiency at 303 K temperature. Inhibitor adsorption on MS was in line with Langmuir and Tempkin adsorption isotherms. Potentiodynamic studies showed that the investigated AHGE performed as a mixed‐type inhibitor. Electrochemical parameters like charge transfer resistance, double‐layer capacitance, and inhibition efficiency were determined and presented. Results obtained through computational analysis, scanning electron microscopy/energy dispersive X‐ray analysis, and atomic force microscopy studies were well supported by the inhibitive potential of AHGE.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"16 1","pages":"259 - 271"},"PeriodicalIF":0.0,"publicationDate":"2021-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78935711","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}
Aiming to enhance the biodegradable magnesium alloys' poor mechanical properties and corrosion resistance in aggressive chloride mediums, micro‐arc oxidation coatings with oxidation times range from 3 to 15 min were prepared on the surface of extruded Mg–2Zn–0.5Zr–1.5Dy (mass%) alloy. Assessments were carried out using electrochemical experiments, hydrogen evolution experiments, and tensile tests, respectively. The results show that the micro‐arc oxidation coating is porous and mainly consists of the MgO phase. When the oxidation time increases from 3 to 15 min, the thickness and the pore size of the coating increase, while the coating's porosity decreases. The coating with the oxidation time of 15 min can effectively prevent the formation of pitting holes on the surface of the alloy, which remarkably reduces the decay rate of ultimate tensile strength, yield strength, and elongation of the alloy after immersion in simulated body fluid for 0–28 days, and keep the alloy with higher and more stable corrosion resistance. This increases the application possibility of extruded Mg–2Zn–0.5Zr–1.5Dy alloy as a biodegradable material.
{"title":"Roles of the micro‐arc oxidation coating on the corrosion resistance and mechanical properties of extruded Mg–2Zn–0.5Zr–1.5Dy (mass%) alloy","authors":"Huan Li, J. Wen, Jie Jin, Ya Liu, Jun-guang He","doi":"10.1002/maco.202112762","DOIUrl":"https://doi.org/10.1002/maco.202112762","url":null,"abstract":"Aiming to enhance the biodegradable magnesium alloys' poor mechanical properties and corrosion resistance in aggressive chloride mediums, micro‐arc oxidation coatings with oxidation times range from 3 to 15 min were prepared on the surface of extruded Mg–2Zn–0.5Zr–1.5Dy (mass%) alloy. Assessments were carried out using electrochemical experiments, hydrogen evolution experiments, and tensile tests, respectively. The results show that the micro‐arc oxidation coating is porous and mainly consists of the MgO phase. When the oxidation time increases from 3 to 15 min, the thickness and the pore size of the coating increase, while the coating's porosity decreases. The coating with the oxidation time of 15 min can effectively prevent the formation of pitting holes on the surface of the alloy, which remarkably reduces the decay rate of ultimate tensile strength, yield strength, and elongation of the alloy after immersion in simulated body fluid for 0–28 days, and keep the alloy with higher and more stable corrosion resistance. This increases the application possibility of extruded Mg–2Zn–0.5Zr–1.5Dy alloy as a biodegradable material.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"3 2","pages":"414 - 426"},"PeriodicalIF":0.0,"publicationDate":"2021-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91437256","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}
Zhan Zhang, T. Fang, Jiuyang Xia, Bowei Zhang, Junsheng Wu
In the present study, the distribution and vitality of the sulfate‐reducing bacteria (SRB) inside the crevice were characterized by scanning electron microscopy and confocal laser scanning microscopy. Potentiodynamic polarization curve tests and electrochemical impedance spectroscopy were used to evaluate the corrosion resistance. Furthermore, a starvation experiment was conducted by controlling nutrients to investigate the effects of the crevices on the transportation of nutrients and the vitality of the SRB. The results demonstrate that it was more difficult for the SRB to enter the crevice, resulting in an incomplete biofilm formed on the surface. In addition, the insufficient supply of nutrients was also the reason for the low vitality of the SRB inside the crevice. Based on these results, it was inferred that the incomplete biofilm inside the crevice acted as a micro‐galvanic, thus making the corrosion rate of 2205 stainless steel in the initial crevice corrosion much more serious than that in the open system.
{"title":"Distribution of sulfate‐reducing bacteria in the crevice and its effect on the initial corrosion behavior of 2205 stainless steel in artificial seawater","authors":"Zhan Zhang, T. Fang, Jiuyang Xia, Bowei Zhang, Junsheng Wu","doi":"10.1002/maco.202112759","DOIUrl":"https://doi.org/10.1002/maco.202112759","url":null,"abstract":"In the present study, the distribution and vitality of the sulfate‐reducing bacteria (SRB) inside the crevice were characterized by scanning electron microscopy and confocal laser scanning microscopy. Potentiodynamic polarization curve tests and electrochemical impedance spectroscopy were used to evaluate the corrosion resistance. Furthermore, a starvation experiment was conducted by controlling nutrients to investigate the effects of the crevices on the transportation of nutrients and the vitality of the SRB. The results demonstrate that it was more difficult for the SRB to enter the crevice, resulting in an incomplete biofilm formed on the surface. In addition, the insufficient supply of nutrients was also the reason for the low vitality of the SRB inside the crevice. Based on these results, it was inferred that the incomplete biofilm inside the crevice acted as a micro‐galvanic, thus making the corrosion rate of 2205 stainless steel in the initial crevice corrosion much more serious than that in the open system.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"32 1","pages":"367 - 378"},"PeriodicalIF":0.0,"publicationDate":"2021-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87973874","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}
A self‐healing coating containing an electrospun nanofibre encapsulating 3,4,5‐trihydroxy benzoic acid cyclohexyl ester (GACE) was prepared. Scanning electron microscopy and transmission electron microscopy demonstrated that the nanofibre had a core–shell structure. The shell thickness of the electrospun fibre was approximately 270 nm, while the core thickness was approximately 380 nm. The self‐healing process of the coating containing GACE nanofibres over a carbon steel surface was simulated in a 3.5 wt% NaCl solution for 30 days. Fourier‐transform infrared spectroscopy analysis revealed that the synthesised GACE reacted with iron ions and formed a stable Fe–O–C compound, which could repair the scratched coating. The self‐repair performance was evaluated through electrochemical measurements, and then a healing model was developed.
{"title":"Synthesis and characterisation of an iron‐ion‐responsive coating with core–shell electrospun fibres containing a chelation agent","authors":"Liying Song, Hao Shi, Peng Han, X. Ji, Q. Cheng","doi":"10.1002/maco.202112459","DOIUrl":"https://doi.org/10.1002/maco.202112459","url":null,"abstract":"A self‐healing coating containing an electrospun nanofibre encapsulating 3,4,5‐trihydroxy benzoic acid cyclohexyl ester (GACE) was prepared. Scanning electron microscopy and transmission electron microscopy demonstrated that the nanofibre had a core–shell structure. The shell thickness of the electrospun fibre was approximately 270 nm, while the core thickness was approximately 380 nm. The self‐healing process of the coating containing GACE nanofibres over a carbon steel surface was simulated in a 3.5 wt% NaCl solution for 30 days. Fourier‐transform infrared spectroscopy analysis revealed that the synthesised GACE reacted with iron ions and formed a stable Fe–O–C compound, which could repair the scratched coating. The self‐repair performance was evaluated through electrochemical measurements, and then a healing model was developed.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"77 1","pages":"242 - 253"},"PeriodicalIF":0.0,"publicationDate":"2021-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91162137","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}
Jing Guo, K. Fu, Y. Teng, Jia-ji Wang, Q. Pang, Fengya Hu, Hongyu Liu
The effect of heat treatment on the corrosion resistance and antibacterial ability of 0Cu2Cr carbon steel was studied using scanning electron microscopy, transmission electron microscopy, laser scanning confocal microscopy, and electrochemistry. The results showed that the peak aging state with complete crystal growth and uniform precipitate phase distribution was attained at the aging temperature of 850°C. Both the Cu‐rich phase with an approximately spherical structure and the dispersive Cu‐ordered phase with a B2 structure were observed in the grain boundary and internal crystal and effectively improved the hardness of the steel because of precipitation strengthening. Thus, the corrosion resistance and antibacterial ability of the 0Cu2Cr carbon steel could be improved by aging it at 850°C.
{"title":"Effect of aging temperature on corrosion resistance and antibacterial ability of 0Cu2Cr carbon steel","authors":"Jing Guo, K. Fu, Y. Teng, Jia-ji Wang, Q. Pang, Fengya Hu, Hongyu Liu","doi":"10.1002/maco.202112796","DOIUrl":"https://doi.org/10.1002/maco.202112796","url":null,"abstract":"The effect of heat treatment on the corrosion resistance and antibacterial ability of 0Cu2Cr carbon steel was studied using scanning electron microscopy, transmission electron microscopy, laser scanning confocal microscopy, and electrochemistry. The results showed that the peak aging state with complete crystal growth and uniform precipitate phase distribution was attained at the aging temperature of 850°C. Both the Cu‐rich phase with an approximately spherical structure and the dispersive Cu‐ordered phase with a B2 structure were observed in the grain boundary and internal crystal and effectively improved the hardness of the steel because of precipitation strengthening. Thus, the corrosion resistance and antibacterial ability of the 0Cu2Cr carbon steel could be improved by aging it at 850°C.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"5 1","pages":"393 - 403"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88009111","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}
In this study, the influence of reversed austenite on the mechanical and corrosion resistance properties of 13Cr4NiMo martensitic stainless steel was investigated. The results reveal that the reversed austenite content in the sample increases with the increase of tempering times. The presence of an appropriate amount of reversed austenite not only improves the comprehensive mechanical properties of martensitic stainless steel but also reduces the susceptibility to pitting corrosion.
{"title":"Influence of reversed austenite on the properties of a 13Cr4NiMo ultra‐low carbon martensitic stainless steel in different environments","authors":"Shenghua Zhang, Yanning Huang, Yanli Wang","doi":"10.1002/maco.202112775","DOIUrl":"https://doi.org/10.1002/maco.202112775","url":null,"abstract":"In this study, the influence of reversed austenite on the mechanical and corrosion resistance properties of 13Cr4NiMo martensitic stainless steel was investigated. The results reveal that the reversed austenite content in the sample increases with the increase of tempering times. The presence of an appropriate amount of reversed austenite not only improves the comprehensive mechanical properties of martensitic stainless steel but also reduces the susceptibility to pitting corrosion.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"17 1","pages":"358 - 366"},"PeriodicalIF":0.0,"publicationDate":"2021-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83365745","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}
Hossein Najafi, A. Eslami, M. Golozar, A. Kavian, Mehdi Ahmadi
Coating disbondments on pipeline steels are regions with high resistivity where conventional cathodic protection (CP) could not fully protect. Therefore, in an attempt to mitigate this challenge, this study investigates the effect of pulse CP on corrosion mitigation and electrochemical conditions under a simulated coating disbondment on X‐52 pipeline steel. In this regard, conventional and pulse CP of −870 mVSCE were applied to the open mouth of a simulated coating disbondment. For pulse CP, frequencies of 1, 5, and 10 kHz were used. Results showed while the conventional CP was not able to fully protect the 20 cm simulated coating disbondment, for the pulse CP with increase in frequency from 1 to 5 kHz, and from 5 to 10 kHz, improve in CP potential protection under the simulated coating disbondment was achieved. This was accompanied by considerably lower corrosion and a more uniform pH distribution under the simulated coating disbondment.
{"title":"Effect of pulse cathodic protection on corrosion mitigation and electrochemical conditions under a simulated coating disbondment on pipeline steel","authors":"Hossein Najafi, A. Eslami, M. Golozar, A. Kavian, Mehdi Ahmadi","doi":"10.1002/maco.202112490","DOIUrl":"https://doi.org/10.1002/maco.202112490","url":null,"abstract":"Coating disbondments on pipeline steels are regions with high resistivity where conventional cathodic protection (CP) could not fully protect. Therefore, in an attempt to mitigate this challenge, this study investigates the effect of pulse CP on corrosion mitigation and electrochemical conditions under a simulated coating disbondment on X‐52 pipeline steel. In this regard, conventional and pulse CP of −870 mVSCE were applied to the open mouth of a simulated coating disbondment. For pulse CP, frequencies of 1, 5, and 10 kHz were used. Results showed while the conventional CP was not able to fully protect the 20 cm simulated coating disbondment, for the pulse CP with increase in frequency from 1 to 5 kHz, and from 5 to 10 kHz, improve in CP potential protection under the simulated coating disbondment was achieved. This was accompanied by considerably lower corrosion and a more uniform pH distribution under the simulated coating disbondment.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"99 1","pages":"116 - 124"},"PeriodicalIF":0.0,"publicationDate":"2021-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81860687","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}
Both thermodynamic and kinetic corrosion process parameters are determined with electrochemical methods. Results are used for a deeper understanding of the established interfacial structures and ongoing processes and of the effects of experimental parameters. Frequently data are used for the evaluation of corrosion inhibitor efficiencies. In case data from just one electrochemical method are used, the validity of the method and data should be verified and critical points must be identified. In this study, we have compared results from three standard electrochemical methods obtained with a common steel sample in an acidic environment and in the presence of three representative aromatic inhibitors. We have noticed significant differences between the results; therefore we suggest rationalization and practical consequences.
{"title":"A comparison of methods for corrosion inhibitor assessment: Mild steel protected by disubstituted aromatics","authors":"Jessica Roscher, Dan Liu, R. Holze","doi":"10.1002/maco.202112551","DOIUrl":"https://doi.org/10.1002/maco.202112551","url":null,"abstract":"Both thermodynamic and kinetic corrosion process parameters are determined with electrochemical methods. Results are used for a deeper understanding of the established interfacial structures and ongoing processes and of the effects of experimental parameters. Frequently data are used for the evaluation of corrosion inhibitor efficiencies. In case data from just one electrochemical method are used, the validity of the method and data should be verified and critical points must be identified. In this study, we have compared results from three standard electrochemical methods obtained with a common steel sample in an acidic environment and in the presence of three representative aromatic inhibitors. We have noticed significant differences between the results; therefore we suggest rationalization and practical consequences.","PeriodicalId":18223,"journal":{"name":"Materials and Corrosion","volume":"29 1","pages":"254 - 258"},"PeriodicalIF":0.0,"publicationDate":"2021-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81833348","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}
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