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Vibratory polishing effects on passivity of 304L stainless steel surfaces 振动抛光对304L不锈钢表面钝化的影响
4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2023-10-05 DOI: 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).
摘要采用表面光谱学和电化学方法研究了振动抛光表面处理对304L不锈钢表面钝化性能的影响。与传统机械抛光相比,振动抛光通过增强Fe的选择性氧化和溶解,促进了表面天然氧化膜双相化学结构中Cr(III)氧化物和氢氧化物的富集。因此,在腐蚀性硫酸电解质中测试的自发钝化性得到了增强。然而,在钝化膜中没有富集Mo(IV)和Mo(VI)的情况下,Cr的富集不会增强阳极极化后的钝化性,也不会增加加速测试条件下对cl诱导的钝化击穿和局部腐蚀的抵抗能力。研究结果为通过表面工程提高不锈钢钝化性能的机理提供了全面的见解。关键词:表面处理振动抛光不锈钢氧化膜钝化局部腐蚀披露声明作者未报告潜在利益冲突。本项目已获得欧洲研究委员会(ERC)在欧盟地平线2020研究和创新计划(ERC高级资助号741123)下的资助。
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引用次数: 0
Inhibition effect of nano-silica synergistic corrosion inhibitor on 110SSsteel in ultra-high temperature organic acidic environment 纳米二氧化硅协同缓蚀剂在超高温有机酸环境中对110ss钢的缓蚀效果
4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2023-10-03 DOI: 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].
摘要与盐酸相比,有机酸能降低高温储层酸化中酸岩反应速率。虽然缓蚀剂可以减少酸对管柱的腐蚀,但超高温使缓蚀剂的效果不理想。我们发现纳米二氧化硅的使用可以提高有机酸体系中缓蚀剂的有效性。下面是一些有趣的发现。首先,超高温使LD-H吸附膜不均匀或不完整。其次,在有机酸中加入纳米二氧化硅,增强了缓蚀剂的高温缓蚀能力,缓蚀率高达99%。此外,纳米二氧化硅的加入使LD-H吸附膜更加完整或均匀,更有效地抑制了腐蚀反应。纳米二氧化硅通过增强缓蚀剂的吸附能力和填充吸附膜,增强了LD-H在有机酸体系中的缓蚀效果。关键词:纳米材料;超高温;协同缓蚀;披露声明作者未报告潜在的利益冲突。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。信用作者贡献声明杜鹃:构思,监督。,资源,写作-审查和编辑。李策:方法论,软件,验证,写作-原稿。刘平利:项目管理。刘金明:写作-评论与编辑。向晨:概念化。王冠:概念化。左子轩:可视化。黄成喜:调查。楼凤成:调查。王明:调查。本研究得到中石油-西南石油大学创新联盟科技合作项目(2020CX0105)资助:[批准号]。
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引用次数: 0
An overview of progresses and challenges of electrochemically integrated multi-electrode arrays for probing localised corrosion in complex environmental conditions 综述了电化学集成多电极阵列在复杂环境条件下探测局部腐蚀的进展和挑战
4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2023-09-29 DOI: 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).
摘要电化学集成多电极阵列(通常被称为线束电极)自20世纪90年代首次用于腐蚀研究以来,在探测和监测传统方法难以测量的各种形式的局部腐蚀方面取得了显著进展。本文简要概述了各种设计和构造的电极阵列探针在复杂环境条件下用于测量局部腐蚀的各种创新应用,特别侧重于讨论阻碍电极阵列更广泛应用的挑战和障碍。对未来前景的讨论包括对多尺度、三维、复杂形状和图案电极阵列的创新设计和制造的建议,以模拟非均质合金的微观结构特征,以及对腐蚀监测数据和数据分析、机器学习和人工智能的未来集成的想法,用于工业应用中的未来预测、建模和预防腐蚀。关键词:局部腐蚀腐蚀监测腐蚀问题多电极阵列线束电极(WBE)披露声明作者未报告潜在利益冲突。
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引用次数: 0
Effect of refrigerant absorbent combinations in the corrosion resistance of copper as structural material in absorption refrigeration systems (ARS) 制冷剂吸收剂组合对吸收式制冷系统结构材料铜耐腐蚀性能的影响
4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2023-09-28 DOI: 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.
摘要本文研究了吸附式制冷系统(ARS)中溴化锂(LiBr)、硝酸锂(LiNO3)和氯化钙(CaCl2)等制冷剂-吸附剂组合存在时铜的耐腐蚀性能。采用开路电位、电化学阻抗谱、电化学噪声分析和动电位极化曲线等电化学技术,研究了测试溶液组合对结构材料铜在ARS中的腐蚀速率的影响。OCP分析表明,Ecorr随温度和测试溶液的变化而变化。同时,当铜在80℃的LiBr/H2O + CaCl2中浸泡时,腐蚀电流密度(Icorr)较低(0.003 mA/cm2)。此外,从EIS估计的Rp显示在80°C时增加。铜表面浸在LiBr/H2O和LiBr + CaCl2中的显微照片观察到裂纹和凹坑。而且,当腐蚀产物层被去除时,表面的非均匀性更少。关键词:腐蚀吸附制冷系统(ARS)含铜化合物混合物披露声明作者未报告潜在利益冲突。数据可得性声明支持本研究结果的数据可根据通讯作者的合理要求提供。
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引用次数: 0
Cavitation erosion and corrosion-cavitation synergism behaviour of CoCrFeNiMnTi x high entropy alloy coatings prepared by laser cladding 激光熔覆CoCrFeNiMnTi x高熵合金涂层的空化侵蚀及腐蚀-空化协同行为
4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2023-09-21 DOI: 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).
摘要分析了CoCrFeNiMnTix (x = 0.5, 1.0, 1.5, 2.0)高熵合金涂层的空化侵蚀和腐蚀-空化协同作用行为。当x = 1.0时,样品的失重小,腐蚀速率最大,抗空化侵蚀性能最好。在空化侵蚀和静止条件下,开路电位法测定的腐蚀-空化协同效应表明,钝化膜的保护能力也随Ti含量的增加呈现先增加后降低的趋势。根据空化侵蚀和静止条件下的开路电位行为,x = 1.0的样品显示出良好的钝化膜再钝化能力。总的来说,x = 1.0的样品在腐蚀-空化协同作用条件下,空化侵蚀程度最高,钝化膜的自修复能力最好,在海洋工程领域作为流体通过件的应用潜力巨大。关键词:激光熔覆高熵合金空化侵蚀腐蚀空化协同作用披露声明作者未报告潜在的利益冲突。作者感谢国家重点研发计划项目(No. 2016YFB1100204)和辽宁省科技攻略项目(No. 2018106004)对本研究的资助。LJKQZ2021050)和沈阳市科技资助项目(22-101-0-16和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}
引用次数: 0
Topographical profiles and mechanical property of corrosion product films on a pipeline steel in Desulfovibrio vulgaris -containing thin electrolyte layer characterised by atomic force microscopy 用原子力显微镜观察含脱硫弧菌薄电解质层中管道钢腐蚀产物膜的形貌和力学性能
4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2023-09-19 DOI: 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.
【摘要】湿气管道的内部腐蚀通常发生在含有溶解气体(如CO2)的薄层冷凝水中,细菌群落可能在其中生长,导致微生物腐蚀。在这项工作中,用原子力显微镜对X52管道钢在含二氧化碳的薄电解质层(TEL)下,在无脱硫弧菌存在的情况下,腐蚀过程中产生的表面膜进行了表征。与无菌TEL(即FeCO3为主的腐蚀产物)中生成的膜相比,含脱硫弧菌TEL中生成的膜(即FeS, FeCO3和生物聚合物的混合物)在形貌上不致密,更柔软,弹性模量降低。浸渍7 d后,无菌和含紫菜苔藻的苔藻表面膜的弹性模量分别为11.81和6.79 GPa。关键词:腐蚀产物薄膜形貌;力学性能;原子力显微镜;微生物腐蚀;薄电解质层。披露声明作者未报告潜在的利益冲突。本研究由中国科学技术大学资助。
{"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}
引用次数: 0
Corrosion rates measured under potentiostatic conditions to represent performance of a cermet nuclear waste form 在恒电位条件下测量的腐蚀速率,以表示金属陶瓷核废料形式的性能
4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2023-09-14 DOI: 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]。
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引用次数: 0
Comparative study of two equivalent circuit models for electrochemical impedance spectroscopy analysis of epoxy zinc-rich coatings 环氧富锌涂层电化学阻抗谱分析两种等效电路模型的比较研究
4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2023-09-11 DOI: 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.
研究了环氧富锌涂层(ZRC)及其自由膜在3.5% NaCl溶液中的阻抗谱,比较了串联和嵌套等效电路拟合的拟合误差和模型参数变化趋势,并分析了ZRC与环氧涂层高频成分的差异。结果表明:ZRC的高频阻抗是锌粉之间的接触阻抗(Zm),而不是薄膜阻抗(Zf);zrc的腐蚀反应由氧的扩散控制。对于zrc,串联等效电路比嵌套等效电路更合理。基于串联等效电路,研究了等效电路元件(电阻、电容和色散系数)的变化规律,以及这些元件与低频阻抗模量(|Z|0.01Hz)和开路电位(OCP)的相关性。
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引用次数: 0
Depth profiles of akaganéite, goethite and maghemite on A1010, HPS and weathering steel panels after wet-dry corrosion tests 干湿腐蚀试验后,A1010、HPS和耐候钢面板上的akagansamuite、针铁矿和磁铁矿的深度剖面
IF 1.8 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2023-09-07 DOI: 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.
对高铬钢(A1010)、高性能钢(HPS 70W)和耐候钢(WS)的面板进行了1周的加速盐雾腐蚀试验,另外进行了13周的低腐蚀性试验。试验结束后,将形成的腐蚀产物逐层提取,并用Mössbauer透射光谱检测其深度的函数。在A1010钢中,沿腐蚀层深度(~ 20 μm),针铁矿(α-FeOOH)和阿卡甘酸盐(β-FeOOH)的含量几乎相等。HPS和WS面板上的锈层要厚得多,分别高达~ 0.6 mm和~ 1 mm,附着性差,在金属-锈界面附近主要含有akaganacimite, α-FeOOH越来越远,并且-经过长时间暴露-也高达20%的铁为磁赤铁矿(γ-Fe2O3)。喷干循环富集的氯化物促进了界面附近β-FeOOH的形成。讨论了已鉴定物种的微观结构和深度分布,特别是β-FeOOH的作用。
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引用次数: 0
Insights into crystallographic and topographic characteristics of local corrosion attack on zinc 锌局部腐蚀的结晶学和形貌特征研究
IF 1.8 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Pub Date : 2023-09-05 DOI: 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.
摘要通过等离子体聚焦离子束(pFIB)挖掘的背散射电子衍射(EBSD)对0.5mm锌丝的整个横截面进行大面积晶体学分析,并通过扫描电子显微镜(SEM)进行形貌分析,确定并关联了锌腐蚀的晶体学和形貌特征。支配表面的条纹畴是非基面优先溶解的结果,留下与表面相交的(0001)板。锌的残余碎片靠近原始表面,这是由于表面上的初始保护膜和晶体腐蚀的共同作用。发现了三个腐蚀层,即从外到内,一个高度多孔的外层,一个致密的中间层和一个侵蚀层。
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引用次数: 0
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Corrosion Engineering, Science and Technology
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