Pub Date : 2023-10-05DOI: 10.1080/1478422x.2023.2264655
Shova Neupane, Sandrine Zanna, Antoine Seyeux, Vincent Maurice, Philippe Marcus
ABSTRACTSurface spectroscopy analysis and electrochemistry were applied to study the effects of surface preparation by vibratory polishing on the passivity of stainless steel 304L surfaces. Compared to grinding by traditional mechanical polishing, vibratory polishing promotes the enrichment of Cr(III) oxide and hydroxide species in the duplex chemical structure of the surface native oxide film by enhancing selective Fe oxidation and dissolution. As a result, spontaneous passivity, tested in aggressive sulphuric acid electrolyte, is enhanced. However, in the absence of enrichment in Mo(IV) and Mo(VI) species in the passive film, the Cr enrichment does not enhance passivity upon anodic polarisation nor increase the resistance to Cl-induced passivity breakdown and initiation of localised corrosion in accelerated testing conditions. The results provide comprehensive insight into the mechanisms underlying the passivity enhancement of stainless steel by surface engineering.KEYWORDS: Surface treatmentvibratory polishingstainless steeloxide filmpassivitylocalised corrosion Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (ERC Advanced grant number 741123).
{"title":"Vibratory polishing effects on passivity of 304L stainless steel surfaces","authors":"Shova Neupane, Sandrine Zanna, Antoine Seyeux, Vincent Maurice, Philippe Marcus","doi":"10.1080/1478422x.2023.2264655","DOIUrl":"https://doi.org/10.1080/1478422x.2023.2264655","url":null,"abstract":"ABSTRACTSurface spectroscopy analysis and electrochemistry were applied to study the effects of surface preparation by vibratory polishing on the passivity of stainless steel 304L surfaces. Compared to grinding by traditional mechanical polishing, vibratory polishing promotes the enrichment of Cr(III) oxide and hydroxide species in the duplex chemical structure of the surface native oxide film by enhancing selective Fe oxidation and dissolution. As a result, spontaneous passivity, tested in aggressive sulphuric acid electrolyte, is enhanced. However, in the absence of enrichment in Mo(IV) and Mo(VI) species in the passive film, the Cr enrichment does not enhance passivity upon anodic polarisation nor increase the resistance to Cl-induced passivity breakdown and initiation of localised corrosion in accelerated testing conditions. The results provide comprehensive insight into the mechanisms underlying the passivity enhancement of stainless steel by surface engineering.KEYWORDS: Surface treatmentvibratory polishingstainless steeloxide filmpassivitylocalised corrosion Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (ERC Advanced grant number 741123).","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":"300 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134973533","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}
Pub Date : 2023-10-03DOI: 10.1080/1478422x.2023.2262215
Juan Du, Ce Li, Pingli Liu, Jinming Liu, Xiang Chen, Guan Wang, Zixuan Zuo, Chengxi Huang, Fengcheng Lou, Ming Wang
ABSTRACTCompared to hydrochloric acid, organic acids can reduce the acid rock reaction rate in high-temperature reservoir acidification. Although corrosion inhibitors can reduce the corrosion of acid on the pipe string, the ultra-high temperature makes the effectiveness of corrosion inhibitors unsatisfactory. We found that the use of nano-silica can improve the effectiveness of corrosion inhibitors in organic acid systems. Some interesting findings are as follows. Firstly, the ultra-high temperature made the adsorption film of LD-H uneven or incomplete. Next, the high-temperature corrosion inhibition ability of corrosion inhibitors was enhanced by adding nano-silica to organic acids, with a corrosion inhibition rate of up to 99%. Furthermore, the addition of nano-silica made the adsorption membrane of LD-H more complete or uniform, which more effectively inhibited corrosion reactions. By enhancing the adsorption capacity of corrosion inhibitors and filling adsorption membranes, nano-silica enhanced the corrosion inhibition effect of LD-H in organic acid systems.KEYWORDS: Nanomaterialultra-high temperaturesynergy corrosion inhibitionorganic acid110SS steel AcknowledgementsThis work was supported by Science and Technology Cooperation Project of the CNPC-SWPU Innovation Alliance (2020CX0105).Disclosure statementNo potential conflict of interest was reported by the author(s).Declaration of competing interestThe authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.Credit authorship contribution statementJuan Du: Conceptualization, Supervision., Resources, Writing – Review & Editing. Ce Li: Methodology, Software, Validation, Writing – Original Draft. Pingli Liu: Project administration. Jinming Liu: Writing – Review & Editing. Xiang Chen: Conceptualization. Guan Wang: Conceptualization. Zixuan Zuo: Visualization. Chengxi Huang: Investigation. Fengcheng lou: Investigation. Ming Wang: Investigation.Additional informationFundingThis work was supported by Science and Technology Cooperation Project of the CNPC-SWPU Innovation Alliance (2020CX0105): [Grant Number].
{"title":"Inhibition effect of nano-silica synergistic corrosion inhibitor on 110SSsteel in ultra-high temperature organic acidic environment","authors":"Juan Du, Ce Li, Pingli Liu, Jinming Liu, Xiang Chen, Guan Wang, Zixuan Zuo, Chengxi Huang, Fengcheng Lou, Ming Wang","doi":"10.1080/1478422x.2023.2262215","DOIUrl":"https://doi.org/10.1080/1478422x.2023.2262215","url":null,"abstract":"ABSTRACTCompared to hydrochloric acid, organic acids can reduce the acid rock reaction rate in high-temperature reservoir acidification. Although corrosion inhibitors can reduce the corrosion of acid on the pipe string, the ultra-high temperature makes the effectiveness of corrosion inhibitors unsatisfactory. We found that the use of nano-silica can improve the effectiveness of corrosion inhibitors in organic acid systems. Some interesting findings are as follows. Firstly, the ultra-high temperature made the adsorption film of LD-H uneven or incomplete. Next, the high-temperature corrosion inhibition ability of corrosion inhibitors was enhanced by adding nano-silica to organic acids, with a corrosion inhibition rate of up to 99%. Furthermore, the addition of nano-silica made the adsorption membrane of LD-H more complete or uniform, which more effectively inhibited corrosion reactions. By enhancing the adsorption capacity of corrosion inhibitors and filling adsorption membranes, nano-silica enhanced the corrosion inhibition effect of LD-H in organic acid systems.KEYWORDS: Nanomaterialultra-high temperaturesynergy corrosion inhibitionorganic acid110SS steel AcknowledgementsThis work was supported by Science and Technology Cooperation Project of the CNPC-SWPU Innovation Alliance (2020CX0105).Disclosure statementNo potential conflict of interest was reported by the author(s).Declaration of competing interestThe authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.Credit authorship contribution statementJuan Du: Conceptualization, Supervision., Resources, Writing – Review & Editing. Ce Li: Methodology, Software, Validation, Writing – Original Draft. Pingli Liu: Project administration. Jinming Liu: Writing – Review & Editing. Xiang Chen: Conceptualization. Guan Wang: Conceptualization. Zixuan Zuo: Visualization. Chengxi Huang: Investigation. Fengcheng lou: Investigation. Ming Wang: Investigation.Additional informationFundingThis work was supported by Science and Technology Cooperation Project of the CNPC-SWPU Innovation Alliance (2020CX0105): [Grant Number].","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135697465","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}
Pub Date : 2023-09-29DOI: 10.1080/1478422x.2023.2262214
Mike Yongjun Tan
ABSTRACTSince the electrochemically integrated multi-electrode array, often referred to as the wire beam electrode, was initially developed for corrosion studies in 1990s, remarkable progresses have been made in its applications for probing and monitoring various forms of localised corrosion that are difficult-to-measure by conventional methods. This paper provides a brief overview of diverse and innovative applications of variously designed and constructed electrode array probes for measuring localised corrosion under complex environmental conditions with particular focus on the discussion of challenges and obstacles that prevent wider applications of electrode arrays. Discussion on future perspectives have included suggestions on the innovative design and fabrication of multi-scale, three-dimensional, complex shaped and patterned electrode arrays for simulating microstructural features of heterogeneous alloys and thoughts on the future integration of corrosion monitoring data and data analytics, machine learning and artificial intelligence for future prediction, modelling and prevention of corrosion in industrial applications.KEYWORDS: Localised corrosioncorrosion monitoringcorrosion probemulti-electrode arraywire beam electrode (WBE) Disclosure statementNo potential conflict of interest was reported by the author(s).
{"title":"An overview of progresses and challenges of electrochemically integrated multi-electrode arrays for probing localised corrosion in complex environmental conditions","authors":"Mike Yongjun Tan","doi":"10.1080/1478422x.2023.2262214","DOIUrl":"https://doi.org/10.1080/1478422x.2023.2262214","url":null,"abstract":"ABSTRACTSince the electrochemically integrated multi-electrode array, often referred to as the wire beam electrode, was initially developed for corrosion studies in 1990s, remarkable progresses have been made in its applications for probing and monitoring various forms of localised corrosion that are difficult-to-measure by conventional methods. This paper provides a brief overview of diverse and innovative applications of variously designed and constructed electrode array probes for measuring localised corrosion under complex environmental conditions with particular focus on the discussion of challenges and obstacles that prevent wider applications of electrode arrays. Discussion on future perspectives have included suggestions on the innovative design and fabrication of multi-scale, three-dimensional, complex shaped and patterned electrode arrays for simulating microstructural features of heterogeneous alloys and thoughts on the future integration of corrosion monitoring data and data analytics, machine learning and artificial intelligence for future prediction, modelling and prevention of corrosion in industrial applications.KEYWORDS: Localised corrosioncorrosion monitoringcorrosion probemulti-electrode arraywire beam electrode (WBE) Disclosure statementNo potential conflict of interest was reported by the author(s).","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135193574","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}
Pub Date : 2023-09-28DOI: 10.1080/1478422x.2023.2261782
Israel Flores-Guadarrama, José G. Gonzalez-Rodriguez, Jorge Uruchurtu-Chavarín, A.M. Ramírez-Arteaga, Genoveva Bustos Rivera Bahena, R. Guardián-Tapia, Roy López-Sesenes
ABSTRACTThe present research was focused on analyzing the corrosion resistance of copper in the presence of refrigerant-absorbent combinations such as lithium bromide (LiBr), lithium nitrate (LiNO3) and calcium chloride (CaCl2), used in Adsorption Refrigeration Systems (ARS). Electrochemical techniques such as open circuit potential, electrochemical impedance spectroscopy, electrochemical noise analyses and potentiodynamic polarisation curves were applied to study the test solution combination effect on the corrosion rate of copper as a structural material in ARS. OCP analyses reveal that the Ecorr shifted based on the temperature and test solution. Meanwhile, when the copper was immersed in LiBr/H2O + CaCl2 at 80°C, the corrosion current density (Icorr) was lower (0.003 mA/cm2). Also, The Rp estimated from EIS shows an increase at 80°C. Micrographs of the copper surface immersed in LiBr/H2O and LiBr + CaCl2 observed cracks and pits. But also, when the corrosion product layer was removed, a less heterogeneous surface was revealed.KEYWORDS: Corrosionadsorption refrigeration systems (ARS)copperabsorbent compounds mixture Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data supporting this study’s findings are available from the corresponding author upon reasonable request.
{"title":"Effect of refrigerant absorbent combinations in the corrosion resistance of copper as structural material in absorption refrigeration systems (ARS)","authors":"Israel Flores-Guadarrama, José G. Gonzalez-Rodriguez, Jorge Uruchurtu-Chavarín, A.M. Ramírez-Arteaga, Genoveva Bustos Rivera Bahena, R. Guardián-Tapia, Roy López-Sesenes","doi":"10.1080/1478422x.2023.2261782","DOIUrl":"https://doi.org/10.1080/1478422x.2023.2261782","url":null,"abstract":"ABSTRACTThe present research was focused on analyzing the corrosion resistance of copper in the presence of refrigerant-absorbent combinations such as lithium bromide (LiBr), lithium nitrate (LiNO3) and calcium chloride (CaCl2), used in Adsorption Refrigeration Systems (ARS). Electrochemical techniques such as open circuit potential, electrochemical impedance spectroscopy, electrochemical noise analyses and potentiodynamic polarisation curves were applied to study the test solution combination effect on the corrosion rate of copper as a structural material in ARS. OCP analyses reveal that the Ecorr shifted based on the temperature and test solution. Meanwhile, when the copper was immersed in LiBr/H2O + CaCl2 at 80°C, the corrosion current density (Icorr) was lower (0.003 mA/cm2). Also, The Rp estimated from EIS shows an increase at 80°C. Micrographs of the copper surface immersed in LiBr/H2O and LiBr + CaCl2 observed cracks and pits. But also, when the corrosion product layer was removed, a less heterogeneous surface was revealed.KEYWORDS: Corrosionadsorption refrigeration systems (ARS)copperabsorbent compounds mixture Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe data supporting this study’s findings are available from the corresponding author upon reasonable request.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135385573","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}
Pub Date : 2023-09-21DOI: 10.1080/1478422x.2023.2259660
D. C. Wang, C. L. Wu, S. Zhang, C. H. Zhang, D. X. Zhang, X. Y. Sun
ABSTRACTCavitation erosion and corrosion-cavitation synergism behavior of CoCrFeNiMnTix (x = 0.5, 1.0, 1.5, 2.0 in atomic ratio) high entropy alloy coatings were analyzed. The sample with x = 1.0 showed the best cavitation erosion resistance due to the low weight loss and the maximum erosion rate. The protective ability of passivation film also displayed an increased first and then decreased tendency with the increase of Ti content as indicated by corrosion-cavitation synergism determined by open circuit potential method under cavitation erosion and quiescence condition. The sample with x = 1.0 displayed good re-passivation ability of passivation film according to open circuit potential behavior under cavitation erosion and quiescence condition. In general, the sample with x = 1.0 exhibited the highest cavitation erosion, the best self-repairing ability of the passivation film under the corrosion-cavitation synergism condition, which showed a great potential in the application of ocean engineering field as fluid-passing parts.KEYWORDS: Laser claddinghigh entropy alloycavitation erosioncorrosion-cavitation synergism Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe authors gratefully acknowledge to the financial support for this research from National Key Research and Development Program of China (No. 2016YFB1100204), Science and Technology Research Project of Liaoning Province (No. 2018106004 and No. LJKQZ2021050) and Shenyang Science and Technology Funded Project (No. 22-101-0-16 and No. 19-109-1-03).
{"title":"Cavitation erosion and corrosion-cavitation synergism behaviour of CoCrFeNiMnTi <i> <sub>x</sub> </i> high entropy alloy coatings prepared by laser cladding","authors":"D. C. Wang, C. L. Wu, S. Zhang, C. H. Zhang, D. X. Zhang, X. Y. Sun","doi":"10.1080/1478422x.2023.2259660","DOIUrl":"https://doi.org/10.1080/1478422x.2023.2259660","url":null,"abstract":"ABSTRACTCavitation erosion and corrosion-cavitation synergism behavior of CoCrFeNiMnTix (x = 0.5, 1.0, 1.5, 2.0 in atomic ratio) high entropy alloy coatings were analyzed. The sample with x = 1.0 showed the best cavitation erosion resistance due to the low weight loss and the maximum erosion rate. The protective ability of passivation film also displayed an increased first and then decreased tendency with the increase of Ti content as indicated by corrosion-cavitation synergism determined by open circuit potential method under cavitation erosion and quiescence condition. The sample with x = 1.0 displayed good re-passivation ability of passivation film according to open circuit potential behavior under cavitation erosion and quiescence condition. In general, the sample with x = 1.0 exhibited the highest cavitation erosion, the best self-repairing ability of the passivation film under the corrosion-cavitation synergism condition, which showed a great potential in the application of ocean engineering field as fluid-passing parts.KEYWORDS: Laser claddinghigh entropy alloycavitation erosioncorrosion-cavitation synergism Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe authors gratefully acknowledge to the financial support for this research from National Key Research and Development Program of China (No. 2016YFB1100204), Science and Technology Research Project of Liaoning Province (No. 2018106004 and No. LJKQZ2021050) and Shenyang Science and Technology Funded Project (No. 22-101-0-16 and No. 19-109-1-03).","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136130259","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}
Pub Date : 2023-09-19DOI: 10.1080/1478422x.2023.2259668
Boxin Wei, Jin Xu, Cheng Sun, Shougang Chen, Y. Frank Cheng
ABSTRACTInternal corrosion of wet gas pipelines usually occurs in thin layers of water condensate with dissolved gases such as CO2, where a bacterial community can grow to cause microbiological corrosion. In this work, surface films generated during corrosion of an X52 pipeline steel under a CO2-containing thin electrolyte layer (TEL) in the absence and presence of Desulfovibrio vulgaris bacteria were characterised by atomic force microscopy. The film generated in the Desulfovibrio vulgaris-containing TEL, i.e. a mixture of FeS, FeCO3 and biopolymers, as compared with the film generated in the sterile TEL (i.e. FeCO3-dominant corrosion products), is topographically less compact and softer, with a reduced elastic modulus. After 7 days of immersion, the elastic modulus of the surface films generated in the sterile and D. vulgaris-containing TELs are 11.81 and 6.79 GPa, respectively.KEYWORDS: Corrosion product filmstopographymechanical propertyatomic force microscopymicrobiological corrosionthin electrolyte layer AcknowledgementsThis work was supported by Excellence in Doctoral Student Studies Program of the University of Science and Technology of China, and the University of Calgary, Canada.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis work was supported by University of Science and Technology of China.
{"title":"Topographical profiles and mechanical property of corrosion product films on a pipeline steel in <i>Desulfovibrio vulgaris</i> -containing thin electrolyte layer characterised by atomic force microscopy","authors":"Boxin Wei, Jin Xu, Cheng Sun, Shougang Chen, Y. Frank Cheng","doi":"10.1080/1478422x.2023.2259668","DOIUrl":"https://doi.org/10.1080/1478422x.2023.2259668","url":null,"abstract":"ABSTRACTInternal corrosion of wet gas pipelines usually occurs in thin layers of water condensate with dissolved gases such as CO2, where a bacterial community can grow to cause microbiological corrosion. In this work, surface films generated during corrosion of an X52 pipeline steel under a CO2-containing thin electrolyte layer (TEL) in the absence and presence of Desulfovibrio vulgaris bacteria were characterised by atomic force microscopy. The film generated in the Desulfovibrio vulgaris-containing TEL, i.e. a mixture of FeS, FeCO3 and biopolymers, as compared with the film generated in the sterile TEL (i.e. FeCO3-dominant corrosion products), is topographically less compact and softer, with a reduced elastic modulus. After 7 days of immersion, the elastic modulus of the surface films generated in the sterile and D. vulgaris-containing TELs are 11.81 and 6.79 GPa, respectively.KEYWORDS: Corrosion product filmstopographymechanical propertyatomic force microscopymicrobiological corrosionthin electrolyte layer AcknowledgementsThis work was supported by Excellence in Doctoral Student Studies Program of the University of Science and Technology of China, and the University of Calgary, Canada.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis work was supported by University of Science and Technology of China.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135060557","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}
Pub Date : 2023-09-14DOI: 10.1080/1478422x.2023.2257948
V. K. Gattu, W. L. Ebert, J. E. Indacochea
ABSTRACTElectrochemical tests were conducted to assess the corrosion performance of a developmental multiphase cermet nuclear waste form in different conditions. Corrosion currents were monitored as the surface equilibrated in an acidic brine solution during potentiostatic tests at different imposed potentials. Electrochemical impedance spectroscopy was used to quantify differences in the electrical properties of surfaces stabilised at different potentials. The passivating oxides that will stabilise the surface under disposal conditions are formed and maintained during testing. The measured corrosion currents were two orders of magnitude lower for passivated surfaces than for polished surfaces over a wide range of redox conditions. The electrochemical results were correlated with microscopic analyses of the corroded surfaces and physical models of the surface passivation and degradation processes are proposed. The measured corrosion rates are suitable for the long-term performance modeling of cermet nuclear waste forms.KEYWORDS: Stainless steelintermetallicsacid solutionspotentiostaticelectrochemical impedance spectroscopy (EIS)scanning electron microscopy (SEM)passive filmsPourbaix diagram AcknowledgementsThis work was funded under DOE Nuclear Energy University Program Grant DE-NE-IL-UIC-0203-02. Work conducted at Argonne National Laboratory is supported by the U.S. Department of Energy, Office of Nuclear Energy, under Contract DE-AC02-06CH11357. The authors acknowledge Drs. Terry A. Cruse and Jeffrey A. Fortner for technical discussions and assistance with the microscopy.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study.CRediT authorship contribution statementV.K. Gattu: Conceptualization, Methodology, Experiment, Data curation, Visualization, Writing – reviewing and editing, W.L. Ebert: Methodology, Resources, Project administration, Writing – review & editing, J.E. Indacochea: Funding acquisition, Methodology, Supervision, Project administration, Writing – review & editing.Declaration of competing interestThe authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.Additional informationFundingThis work was supported by Nuclear Energy University Program: [Grant Number DE-NE-IL-UIC-0203-02].
摘要通过电化学试验研究了一种发育多相金属陶瓷核废料形态在不同条件下的腐蚀性能。在不同施加电位的恒电位试验中,监测了在酸性盐水溶液中表面平衡的腐蚀电流。电化学阻抗谱用于量化在不同电位下稳定的表面电学性能的差异。在测试过程中形成并保持钝化氧化物,在处理条件下使表面稳定。在广泛的氧化还原条件下,钝化表面的腐蚀电流比抛光表面低两个数量级。电化学结果与腐蚀表面的微观分析相关联,并提出了表面钝化和降解过程的物理模型。所测得的腐蚀速率适合于金属陶瓷核废料形态的长期性能建模。关键词:不锈钢金属间酸溶液电位静态电化学阻抗谱扫描电镜钝化膜图致谢本工作由DOE核能大学计划资助de - ne - il - ic -0203-02。根据DE-AC02-06CH11357合同,阿贡国家实验室的工作得到了美国能源部核能办公室的支持。作者承认dr。Terry A. Cruse和Jeffrey A. Fortner为显微镜技术讨论和协助。披露声明作者未报告潜在的利益冲突。数据可用性声明再现这些发现所需的原始/处理数据目前不能共享,因为这些数据也是正在进行的研究的一部分。信用、作者、贡献声明加图:概念化、方法论、实验、数据管理、可视化、写作-审查和编辑,W.L. Ebert:方法论、资源、项目管理、写作-审查和编辑,J.E. Indacochea:资金获取、方法论、监督、项目管理、写作-审查和编辑。竞争利益声明作者声明,他们没有已知的竞争经济利益或个人关系,可能会影响本文所报道的工作。本研究由核能大学项目资助:[批准号DE-NE-IL-UIC-0203-02]。
{"title":"Corrosion rates measured under potentiostatic conditions to represent performance of a cermet nuclear waste form","authors":"V. K. Gattu, W. L. Ebert, J. E. Indacochea","doi":"10.1080/1478422x.2023.2257948","DOIUrl":"https://doi.org/10.1080/1478422x.2023.2257948","url":null,"abstract":"ABSTRACTElectrochemical tests were conducted to assess the corrosion performance of a developmental multiphase cermet nuclear waste form in different conditions. Corrosion currents were monitored as the surface equilibrated in an acidic brine solution during potentiostatic tests at different imposed potentials. Electrochemical impedance spectroscopy was used to quantify differences in the electrical properties of surfaces stabilised at different potentials. The passivating oxides that will stabilise the surface under disposal conditions are formed and maintained during testing. The measured corrosion currents were two orders of magnitude lower for passivated surfaces than for polished surfaces over a wide range of redox conditions. The electrochemical results were correlated with microscopic analyses of the corroded surfaces and physical models of the surface passivation and degradation processes are proposed. The measured corrosion rates are suitable for the long-term performance modeling of cermet nuclear waste forms.KEYWORDS: Stainless steelintermetallicsacid solutionspotentiostaticelectrochemical impedance spectroscopy (EIS)scanning electron microscopy (SEM)passive filmsPourbaix diagram AcknowledgementsThis work was funded under DOE Nuclear Energy University Program Grant DE-NE-IL-UIC-0203-02. Work conducted at Argonne National Laboratory is supported by the U.S. Department of Energy, Office of Nuclear Energy, under Contract DE-AC02-06CH11357. The authors acknowledge Drs. Terry A. Cruse and Jeffrey A. Fortner for technical discussions and assistance with the microscopy.Disclosure statementNo potential conflict of interest was reported by the author(s).Data availability statementThe raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study.CRediT authorship contribution statementV.K. Gattu: Conceptualization, Methodology, Experiment, Data curation, Visualization, Writing – reviewing and editing, W.L. Ebert: Methodology, Resources, Project administration, Writing – review & editing, J.E. Indacochea: Funding acquisition, Methodology, Supervision, Project administration, Writing – review & editing.Declaration of competing interestThe authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.Additional informationFundingThis work was supported by Nuclear Energy University Program: [Grant Number DE-NE-IL-UIC-0203-02].","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134910876","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}
Pub Date : 2023-09-11DOI: 10.1080/1478422x.2023.2250960
De-Ming Xie, Tian-Yu Wang, Jing-Ping Xie, Fang-Yuan Cao, Yu-Guang Wang
In this paper, the impedance spectra of an epoxy zinc-rich coating (ZRC) and its free film immersed in 3.5% NaCl solution are investigated, the fitting error and model parameter trends of series and nested equivalent circuit fits are compared, and the differences in the high-frequency components of the ZRC and the epoxy coatings are analyzed. The results show that the high-frequency impedance of ZRC is the contact impedance between the zinc powders (Zm) rather than the film impedance (Zf). The corrosion reaction of the ZRCs is controlled by the diffusion of oxygen. For ZRCs, the series equivalent circuits are more reasonable compared to the nested equivalent circuit. Based on the series equivalent circuit, the variation law of the equivalent circuit elements (resistors, capacitors and dispersion coefficient) and the correlation of these elements with low-frequency impedance modulus (|Z|0.01Hz) and open circuit potential (OCP) are investigated in this paper.
{"title":"Comparative study of two equivalent circuit models for electrochemical impedance spectroscopy analysis of epoxy zinc-rich coatings","authors":"De-Ming Xie, Tian-Yu Wang, Jing-Ping Xie, Fang-Yuan Cao, Yu-Guang Wang","doi":"10.1080/1478422x.2023.2250960","DOIUrl":"https://doi.org/10.1080/1478422x.2023.2250960","url":null,"abstract":"In this paper, the impedance spectra of an epoxy zinc-rich coating (ZRC) and its free film immersed in 3.5% NaCl solution are investigated, the fitting error and model parameter trends of series and nested equivalent circuit fits are compared, and the differences in the high-frequency components of the ZRC and the epoxy coatings are analyzed. The results show that the high-frequency impedance of ZRC is the contact impedance between the zinc powders (Zm) rather than the film impedance (Zf). The corrosion reaction of the ZRCs is controlled by the diffusion of oxygen. For ZRCs, the series equivalent circuits are more reasonable compared to the nested equivalent circuit. Based on the series equivalent circuit, the variation law of the equivalent circuit elements (resistors, capacitors and dispersion coefficient) and the correlation of these elements with low-frequency impedance modulus (|Z|0.01Hz) and open circuit potential (OCP) are investigated in this paper.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135938102","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}
Pub Date : 2023-09-07DOI: 10.1080/1478422X.2023.2247666
Jerzy A. Sawicki
ABSTRACT The panels of high chromium steel (A1010), high-performance steel (HPS 70W) and weathering steel (WS) were exposed to accelerated salt-spray corrosion test for 1 week and to less aggressive test for additional 13 weeks. After the tests, the corrosion products formed were extracted layer after layer and examined as a function of their depth with Mössbauer transmission spectroscopy. In the case of A1010 steel, the amounts of goethite (α-FeOOH) and akaganéite (β-FeOOH) were almost equal along the depth of the corroded layer up to ∼20 μm. The rust layers on HPS and WS panels were much thicker, respectively up to ∼0.6 mm and ∼1 mm, poorly adherent and contained mostly akaganéite near the metal–rust interface, α-FeOOH increasingly further away, and – after long exposure – also up to 20% Fe as maghemite (γ-Fe2O3). Formation of β-FeOOH near the interface was promoted by chloride concentrated by spray-dry cycles. The microstructure and depth profiles of identified species, and especially the role of β-FeOOH, are discussed.
{"title":"Depth profiles of akaganéite, goethite and maghemite on A1010, HPS and weathering steel panels after wet-dry corrosion tests","authors":"Jerzy A. Sawicki","doi":"10.1080/1478422X.2023.2247666","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2247666","url":null,"abstract":"ABSTRACT The panels of high chromium steel (A1010), high-performance steel (HPS 70W) and weathering steel (WS) were exposed to accelerated salt-spray corrosion test for 1 week and to less aggressive test for additional 13 weeks. After the tests, the corrosion products formed were extracted layer after layer and examined as a function of their depth with Mössbauer transmission spectroscopy. In the case of A1010 steel, the amounts of goethite (α-FeOOH) and akaganéite (β-FeOOH) were almost equal along the depth of the corroded layer up to ∼20 μm. The rust layers on HPS and WS panels were much thicker, respectively up to ∼0.6 mm and ∼1 mm, poorly adherent and contained mostly akaganéite near the metal–rust interface, α-FeOOH increasingly further away, and – after long exposure – also up to 20% Fe as maghemite (γ-Fe2O3). Formation of β-FeOOH near the interface was promoted by chloride concentrated by spray-dry cycles. The microstructure and depth profiles of identified species, and especially the role of β-FeOOH, are discussed.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":"58 1","pages":"687 - 695"},"PeriodicalIF":1.8,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42087934","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}
Pub Date : 2023-09-05DOI: 10.1080/1478422X.2023.2247236
X. Zhong, Philip J Withers, Yi Guo, Xiaorong Zhou, Ivan S. Cole
ABSTRACT Through large area crystallographic analysis across the whole cross-section of a 0.5 mm zinc wire by backscattered electron diffraction (EBSD) excavated by plasma focused ion beam (pFIB) and topographic analysis by scanning electron microscopy (SEM), the crystallographic and topographic characteristics of corrosion on zinc are identified and correlated. Striated domains dominating the surface are the result of preferential dissolution of non-basal planes leaving (0001) plates intersecting the surface. Remnant fragments of zinc lie close to the original surface which is due to the combined effects of the initial protective film on the surface and the crystallographic corrosion. Three corrosion layers were found, namely from the outside inwards, a highly porous outer layer, a densified intermediate layer and an attacked layer.
{"title":"Insights into crystallographic and topographic characteristics of local corrosion attack on zinc","authors":"X. Zhong, Philip J Withers, Yi Guo, Xiaorong Zhou, Ivan S. Cole","doi":"10.1080/1478422X.2023.2247236","DOIUrl":"https://doi.org/10.1080/1478422X.2023.2247236","url":null,"abstract":"ABSTRACT Through large area crystallographic analysis across the whole cross-section of a 0.5 mm zinc wire by backscattered electron diffraction (EBSD) excavated by plasma focused ion beam (pFIB) and topographic analysis by scanning electron microscopy (SEM), the crystallographic and topographic characteristics of corrosion on zinc are identified and correlated. Striated domains dominating the surface are the result of preferential dissolution of non-basal planes leaving (0001) plates intersecting the surface. Remnant fragments of zinc lie close to the original surface which is due to the combined effects of the initial protective film on the surface and the crystallographic corrosion. Three corrosion layers were found, namely from the outside inwards, a highly porous outer layer, a densified intermediate layer and an attacked layer.","PeriodicalId":10711,"journal":{"name":"Corrosion Engineering, Science and Technology","volume":"58 1","pages":"667 - 675"},"PeriodicalIF":1.8,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42652908","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}