Corrosion Science最新文献_第10页

Analysis and quantification of high-temperature corrosion in lignite fired boilers using an online monitoring system 利用在线监测系统对褐煤锅炉高温腐蚀进行分析与量化

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-08 DOI: 10.1016/j.corsci.2025.113012

Adrian Marx, Dennis Hülsbruch, Jochen Ströhle, Bernd Epple

{"title":"Analysis and quantification of high-temperature corrosion in lignite fired boilers using an online monitoring system","authors":"Adrian Marx, Dennis Hülsbruch, Jochen Ströhle, Bernd Epple","doi":"10.1016/j.corsci.2025.113012","DOIUrl":"10.1016/j.corsci.2025.113012","url":null,"abstract":"<div><div>Corrosion monitoring in industrial boilers is typically performed using offline techniques, such as coupons or ultrasonic testing, to assess component lifetime. These techniques lack temporal resolution, hindering their ability to detect dynamic influences on corrosion attack, such as fuel inhomogeneity, load changes, or unfavourable operational parameters. Electrochemical online monitoring has been successfully implemented in the chemical industry, yet studies in power plants remain limited to short tests or laboratory-scale parameter investigations. This work aims to highlight the added value of online monitoring and evaluate the ability to record reliable data in industrial environments. Additionally, the study presents an approach to quantify sensor data and enable operators to derive actionable recommendations. Twelve sensors were strategically positioned around burners in the membrane wall and monitored for three years to investigate spatial distribution and temperature influence on corrosion attack. Sampling of near-wall gas atmosphere during partial and full-load conditions facilitated research into gas phase influence. Multiple analytical approaches validated sensor data: Temperature measurements demonstrated correlation between deposit accumulation and corrosion signals. Event-based analysis revealed intense corrosion during plant shutdowns across all sensor positions. Statistical evaluation established correlation between mill utilization and corrosion intensity. Gravimetric quantification methods, expressing results in mm/1000 h, enhanced interpretability and chemical analysis of deposits provided insight into dominant corrosion mechanisms. This study offers significant insight to operators as well as researchers, enabling them to evaluate the benefits of online monitoring systems and to compare laboratory experiments with industrial results.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113012"},"PeriodicalIF":7.4,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Insights into the fretting corrosion behavior and damage mechanism of Inconel 690TT in water and steam environments containing different dissolved oxygen levels Inconel 690TT在不同溶解氧水平的水和蒸汽环境中的微动腐蚀行为及损伤机制

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-08 DOI: 10.1016/j.corsci.2025.113018

W.W. Bian , X. Liu , F. Wang , J. Xiao , X.F. Zhang , Y.Q. Han , Z.Y. Cheng , T. Shoji

引用次数: 0

Unveiling the corrosion mechanism of nickel-aluminum bronze coatings on steel fabricated by wire-arc directed energy deposition from selective phase corrosion to uniform corrosion evolution 揭示了线弧定向能沉积镍铝青铜涂层在钢表面的腐蚀机理，从选择相腐蚀到均匀腐蚀演变

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-07 DOI: 10.1016/j.corsci.2025.113019

Cheng Xu , Yong Peng , Liang-Yu Chen , Yong Huang , Tian-Yang Zhang , Jing-Jing Cheng , Ke-Hong Wang

{"title":"Unveiling the corrosion mechanism of nickel-aluminum bronze coatings on steel fabricated by wire-arc directed energy deposition from selective phase corrosion to uniform corrosion evolution","authors":"Cheng Xu , Yong Peng , Liang-Yu Chen , Yong Huang , Tian-Yang Zhang , Jing-Jing Cheng , Ke-Hong Wang","doi":"10.1016/j.corsci.2025.113019","DOIUrl":"10.1016/j.corsci.2025.113019","url":null,"abstract":"<div><div>In this work, the microstructural evolution and corrosion behavior of nickel aluminum bronze (NAB) deposition layers deposited at different distances from the steel substrate using wire-arc directed energy deposition (WA-DED) were investigated. Due to the undercooling of the organization, as the distance from the substrate was increased, the grain characteristics of the α-Cu matrix transitioned from equiaxed grains to columnar grains. Because of the addition of Fe and Cr elements and repeated heating, the bottom region (BNAB) was shown to be more complex, comprising an α-Cu matrix, β′-Cu, and various κ phases. As the samples were gradually moved away from the substrate, the content of intermetallic compounds was decreased, showing a more uniform microstructure. The enrichment of Fe and Cr in the precipitates of BNAB increased the potential volta difference between the phases, leading to exacerbated selective phase corrosion. The higher metal element (Al and Ni) content and dislocation densities of the top deposition layer were found to promote passivation behavior and reduce the density of point defects in the Cu<sub>2</sub>O film of the top region (TNAB). The Al<sub>2</sub>O<sub>3</sub> film was formed on the nano-sized κ<sub>Ⅱ</sub>-phase rapidly, protecting the interdendritic region of TNAB. Therefore, the uniform distribution of Al<sub>2</sub>O<sub>3</sub> film and the lower potential difference between different phases result in uniform corrosion of TNAB.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113019"},"PeriodicalIF":7.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Oxidation of Zircaloy-4 under simulated accident conditions – kinetics and microstructural developments 在模拟事故条件下氧化锆-4的动力学和微观结构的发展

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-07 DOI: 10.1016/j.corsci.2025.113021

V.S.V. Anantha Krishna , Sai Karthik Nouduru , Kiran K. Mandapaka , G. Bharat Reddy , Shefali Shukla , Anurup Das , Parag M. Ahmedabadi , S. Roychowdhury

{"title":"Oxidation of Zircaloy-4 under simulated accident conditions – kinetics and microstructural developments","authors":"V.S.V. Anantha Krishna , Sai Karthik Nouduru , Kiran K. Mandapaka , G. Bharat Reddy , Shefali Shukla , Anurup Das , Parag M. Ahmedabadi , S. Roychowdhury","doi":"10.1016/j.corsci.2025.113021","DOIUrl":"10.1016/j.corsci.2025.113021","url":null,"abstract":"<div><div>Zircaloy-4 cladding was exposed to steam under isothermal conditions at temperatures ranging from 600 to 1200 °C in a thermogravimetric (TG) setup. Differential thermogravimetry (DTG) curves were analysed to identify kinetic transition points and the breakaway regime. Cyclic kinetic transitions were observed in all isothermal tests within the range of 600–1000 °C, while breakaway was only seen at 600 °C, 700 °C, and 1000 °C. Electron backscattered diffraction (EBSD) analysis of the oxide formed at 900 °C revealed fragmented monoclinic grains in certain regions. A possible mechanism for this grain refinement in the oxide, along with its implications for cyclic transitions, is discussed. Additionally, various phases were identified in the base metal microstructure, including oxygen-stabilized α-Zr(O), α′ platelets, hydrides, and Fe-Cr-rich intermetallic precipitates. The distribution and fraction of these phases varied with temperature. The differing susceptibility to breakaway at the examined temperatures was correlated with the observed phase and microstructural features. The hydrogen pickup fraction (HPUF) for samples oxidized at 600 and 700 °C, where breakaway occurred, was notably high (>40 %). In contrast, the HPUF was much lower in the pre-transition 600 °C sample and the 900 °C sample, which only exhibited cyclic transitions. Qualitative stress assessment, based on Raman position shifts of monoclinic oxide peaks, indicated the presence of compressive stresses in the oxide before a transition. These stresses were relieved through cracking or grain fragmentation in the oxides that underwent either cyclic transitions or breakaway.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113021"},"PeriodicalIF":7.4,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143928031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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A novel and facile solvothermal fluorination approach for boosting oxidation resistance of TiAl alloy 一种提高TiAl合金抗氧化性的新型溶剂热氟化方法

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-06 DOI: 10.1016/j.corsci.2025.113017

Jun-Yue Liang , Hao-Jie Yan , Xin-Yu Ye , Tao Fan , Ye Gui , Bing Xie , Xiao-Bing Li , Lian-Kui Wu , Fa-he Cao

引用次数: 0

Coupling effect of adipic acid and Cl- on anodic dissolution of SAC305 solder alloy for printed circuit boards 己二酸与Cl-耦合对印刷电路板用SAC305焊料合金阳极溶解的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-05 DOI: 10.1016/j.corsci.2025.112976

Shiyao Du , Dongfang Jia , Xin Guo , Jinke Wang , Zhibin Chen , Lingwei Ma , Dawei Zhang

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Influence of Cr content on microstructure and oxidation behavior of modified Mo-Si-B composite coatings Cr含量对改性Mo-Si-B复合镀层组织及氧化行为的影响

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-05 DOI: 10.1016/j.corsci.2025.113011

Beibei Xu, Xiping Guo, Yanqiang Qiao

引用次数: 0

The development of Ni-Cr-W corrosion resistant alloys immune to sensitization 抗敏化Ni-Cr-W耐腐蚀合金的研制

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-05 DOI: 10.1016/j.corsci.2025.113015

Marc Peters , Victor Cruz de Faria , Lee Djumas , Michael Brameld , Erin G. Brodie , Sebastian Thomas , Christopher Hutchinson

{"title":"The development of Ni-Cr-W corrosion resistant alloys immune to sensitization","authors":"Marc Peters , Victor Cruz de Faria , Lee Djumas , Michael Brameld , Erin G. Brodie , Sebastian Thomas , Christopher Hutchinson","doi":"10.1016/j.corsci.2025.113015","DOIUrl":"10.1016/j.corsci.2025.113015","url":null,"abstract":"<div><div>The Ni-Cr-Mo system is the basis of important commercial corrosion resistant alloys (CRA’s) such as Inconel 625. These alloys perform very well so long as the Cr and Mo are available in solid solution. One of the limitations of Ni-Cr-Mo based CRA’s is that exposure at moderate temperatures (>500°C) can lead to precipitation of Cr and/or Mo containing compounds and this sensitization degrades the corrosion and mechanical performance. This research explores the development of a class of CRA’s based on the Ni-Cr-W system. This system has the advantage that compositions can be designed using computational thermodynamics that remain single phase from room temperature to melting, and hence could be immune from classic sensitization. We use atomic emission spectroelectrochemistry, coupled with x-ray photoelectron spectroscopy, to observe the extent to which W interacts with the Ni-Cr-W alloy surface during transpassive dissolution and repassivation in a 0.1 M solution of HCl (pH 1). This is compared with the behaviour of Mo and Nb in a commercial Inconel 625 alloy. The retention and dissolution behaviours of W, Mo and Nb are compared with results of ASTM G48 pitting and crevice testing to relate corrosion mechanisms with alloy performance. W is shown to enrich during transpassive dissolution and dissolve upon repassivation in a similar manner to Mo, suggesting their repassivation mechanisms are similar. The presence of Nb in Inconel 625 is also proposed to increase pitting resistance and reduce crevice propagation. It is shown that Ni-Cr-W alloys can be designed to be immune to sensitization with W playing a similar role in repassivation to Mo in Ni-Cr Mo alloys.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113015"},"PeriodicalIF":7.4,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143916124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Enhanced corrosion resistance of MgO–C refractories containing sintered MgAl2O4 spinel powder under various slag basicities 含烧结MgAl2O4尖晶石粉的MgO-C耐火材料在不同矿渣碱度下的耐腐蚀性增强

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-05 DOI: 10.1016/j.corsci.2025.113009

Weijie Guo , Tianbin Zhu , Yuhang Zhang , Yawei Li , Xiaofeng Xu , Yajie Dai , Yibiao Xu , Wen Yan

{"title":"Enhanced corrosion resistance of MgO–C refractories containing sintered MgAl2O4 spinel powder under various slag basicities","authors":"Weijie Guo , Tianbin Zhu , Yuhang Zhang , Yawei Li , Xiaofeng Xu , Yajie Dai , Yibiao Xu , Wen Yan","doi":"10.1016/j.corsci.2025.113009","DOIUrl":"10.1016/j.corsci.2025.113009","url":null,"abstract":"<div><div>Under the requirements of low-carbon metallurgy and high scrap ratio technology, enhancing the slag corrosion resistance of MgO–C refractories through cost-effective methods holds significant importance. Therefore, sintered spinel fine powder was used to partially replace the original fused magnesia fine powder in the refractory matrix, and the slag corrosion resistance against high-basicity and low-basicity slags was studied using the induction furnace corrosion test. The results showed that the addition of sintered spinel fine powder significantly enhanced the slag resistance of refractory matrix, especially against low-basicity slag. It also suppressed the propagation of the corroded area at the matrix, preventing complete destruction of the matrix and subsequent spalling of the aggregates caused by slag flow. Additionally, it inhibited the penetration of the slag into the refractory matrix and reduced the concentration of Fe<sup>3 +</sup> in the slag. When 12 wt% of sintered spinel fine powder was used, the specimens exhibited the best slag corrosion resistance against both slags with different basicities.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113009"},"PeriodicalIF":7.4,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Simultaneous proton irradiation and dissolution corrosion of SS316L in liquid Pb-4Bi alloy SS316L在液态Pb-4Bi合金中的同步质子辐照和溶解腐蚀

IF 7.4 1区材料科学

Corrosion Science Pub Date : 2025-05-04 DOI: 10.1016/j.corsci.2025.113010

Wande Cairang , Weiyue Zhou , Mark Lapington , Yong Zhang , Minyi Zhang , Paola Massielle Amadeo , Kevin B. Woller , Felix Hofmann , Xing Gong , Michael P. Short

{"title":"Simultaneous proton irradiation and dissolution corrosion of SS316L in liquid Pb-4Bi alloy","authors":"Wande Cairang , Weiyue Zhou , Mark Lapington , Yong Zhang , Minyi Zhang , Paola Massielle Amadeo , Kevin B. Woller , Felix Hofmann , Xing Gong , Michael P. Short","doi":"10.1016/j.corsci.2025.113010","DOIUrl":"10.1016/j.corsci.2025.113010","url":null,"abstract":"<div><div>Dissolution of steels in contact with heavy liquid metals is a well-known deleterious corrosion mode, but existing literature lacks comprehensive data and thorough mechanistic understanding on how radiation influences dissolution corrosion. This is a critical issue to be addressed for both fission and fusion applications. In this study, simultaneous radiation and corrosion experiments were conducted on stainless steel (SS) 316 L in liquid lead - 4 wt% bismuth (Pb-4Bi) at 675℃, utilizing 3 MeV proton irradiation. The results reveal that proton irradiation promotes both the initiation of dissolution corrosion on the surface of the SS316L, and subsequent penetration into the bulk of the material. The former is attributed to radiation-enhanced wetting of the liquid metal on the SS316L surface, while the latter results from radiation-enhanced diffusion of more susceptible elements (Fe and Cr) and less susceptible element (Ni) from the bulk to the liquid metal/fresh substrate interface. At the interface, the miscible elements predominantly dissolve in the liquid metal, while the immiscible elements diffuse along the interface into the ferritized (BCC) regions. This research provides insights into the synergetic mechanism of dissolution and irradiation in SS316L exposed to liquid lead-bismuth alloy, and could be generalizable to similar, austenitic, solid solution steels, which undergoes selective elemental dissolution in liquid metals.</div></div>","PeriodicalId":290,"journal":{"name":"Corrosion Science","volume":"253 ","pages":"Article 113010"},"PeriodicalIF":7.4,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143950505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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