Materials and Corrosion-werkstoffe Und Korrosion最新文献_第4页

Study on the Effect of Dry and Wet Cycle Time Ratio on the Corrosion Behavior of 2198 Aluminum–Lithium Alloy

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-11 DOI: 10.1002/maco.202414580

Yingyan Liu, Zhibin Deng, Qian Zhang, Xiao Hu, Hang Yue, Haiping Tang, Guotao Li

{"title":"Study on the Effect of Dry and Wet Cycle Time Ratio on the Corrosion Behavior of 2198 Aluminum–Lithium Alloy","authors":"Yingyan Liu, Zhibin Deng, Qian Zhang, Xiao Hu, Hang Yue, Haiping Tang, Guotao Li","doi":"10.1002/maco.202414580","DOIUrl":"https://doi.org/10.1002/maco.202414580","url":null,"abstract":"<div>\u0000 \u0000 <p>The corrosion of 2198 aluminum–lithium alloy in a marine atmospheric environment was simulated using a wet–dry alternating experimental setup. Weight-loss measurement methods, electrochemical impedance spectroscopy (EIS), scanning electron microscopy/energy-dispersive spectroscopy (SEM/EDS), macroscopic morphology testing, three-dimensional morphology testing, and X-ray photoelectron spectroscopy (XPS) were used to study the wet–dry alternating corrosion behaviors and mechanisms of 2198 aluminum–lithium alloys under simulated marine atmospheric environment. The results indicate that corrosion weight loss increases with decreasing wet-to-dry ratios, accompanied by an increase in the corrosion rate. Various data suggest that the primary corrosion products are composed of Al<sub>2</sub>O<sub>3</sub>, AlO(OH), and AlCl<sub>3</sub>. The reduction in the wet-to-dry ratio leads to the enrichment of Cl⁻ within the corrosion products, extending the contact time between the substrate and the medium, thereby intensifying the hydrolysis of Al³⁺. This exacerbates the dissolution at pitting sites, which in turn erodes and breaks down the corrosion product film, accelerating the overall corrosion process.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 3","pages":"446-458"},"PeriodicalIF":1.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554865","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

Cover Picture: Materials and Corrosion. 11/2024 封面图片：材料与腐蚀。11/2024

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-04 DOI: 10.1002/maco.202470111

Wei Zhang, Mingyang Zhou, Huifang Yue, Danmin Peng, Xi Qiu, Jijun Yang

引用次数: 0

Masthead: Materials and Corrosion. 11/2024 刊头：材料与腐蚀11/2024

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-04 DOI: 10.1002/maco.202470112

引用次数: 0

Contents: Materials and Corrosion. 11/2024 内容：材料与腐蚀。11/2024

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-04 DOI: 10.1002/maco.202470113

引用次数: 0

AI-Based Segmentation for Corrosion Risk Prediction in Carline Designs

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-03 DOI: 10.1002/maco.202414622

Marcel Gollé-Leidreiter, Konstantin Kapfer, Andreas Mittelbach, Julia Kowalski

{"title":"AI-Based Segmentation for Corrosion Risk Prediction in Carline Designs","authors":"Marcel Gollé-Leidreiter, Konstantin Kapfer, Andreas Mittelbach, Julia Kowalski","doi":"10.1002/maco.202414622","DOIUrl":"https://doi.org/10.1002/maco.202414622","url":null,"abstract":"<div>\u0000 \u0000 <p>With shortening development cycles, digital development rises in importance. Therefore, we present an approach to segment digital carlines based on their corrosion risk using digital data sets. A typical carline is described via STL-Files that accumulate to approximately 25 million triangles. While physics-based simulation models exist capable of predicting the onset of corrosion in local geometry settings, an application to a complex surface mesh would be prohibitively expensive to compute. This calls for data reduction techniques that reduce the number of triangles by identifying areas prone to corrosion, as well as those that are protected by measures such as adhesives. Therefore, the implementation of corrosion-prone areas of a body-in-white part, as presented in Waibel et al., is extended by implementing a design measure segmentation for adhesive pipes. This work introduces a method to predict corrosion-protected areas for flanges with adhesives by implementing a feature extraction and a transfer learning-based workflow for data-efficient training. The results of the implementation are the validated prediction on body-in-white parts with high precision.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 3","pages":"386-397"},"PeriodicalIF":1.6,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554367","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

Preparation and Performance Study of Zinc Dibenzyl Dithiocarbamate Self-Assembled Film on Electrodeposited Cu–Ni Alloy Surface

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-13 DOI: 10.1002/maco.202414461

Xuyan Guo, Zhuangzhuang Xiong, Guixiang Wang, Fuqiu Ma, Mingbo Ji, Ruizhi Wu

{"title":"Preparation and Performance Study of Zinc Dibenzyl Dithiocarbamate Self-Assembled Film on Electrodeposited Cu–Ni Alloy Surface","authors":"Xuyan Guo, Zhuangzhuang Xiong, Guixiang Wang, Fuqiu Ma, Mingbo Ji, Ruizhi Wu","doi":"10.1002/maco.202414461","DOIUrl":"https://doi.org/10.1002/maco.202414461","url":null,"abstract":"<div>\u0000 \u0000 <p>This study developed a green and efficient surface protection method for Cu–Ni alloys. A zinc dibenzyl dithiocarbamate film was prepared on the surface of electrodeposited Cu–Ni alloys using the self-assembly method to improve the material's corrosion resistance in seawater. The influence of zinc dibenzyl dithiocarbamate concentration and self-assembly time on the corrosion resistance of the self-assembled films was investigated through electrochemical testing. The findings revealed that at a zinc dibenzyl dithiocarbamate concentration of 10 mmol/L and a self-assembly time of 20 min, the self-assembled film exhibited the most robust corrosion resistance, achieving a maximum corrosion inhibition efficiency of 97.70%. The self-assembly and adsorption mechanism of zinc dibenzyl dithiocarbamate were explored using molecular dynamics simulations and adsorption isotherms. The protective effect of self-assembled films was visually observed through salt spray testing. Zinc dibenzyl dithiocarbamate self-assembled film technology has high application prospects in the field of marine anti-corrosion.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"214-225"},"PeriodicalIF":1.6,"publicationDate":"2024-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363040","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

Thermochemical Corrosion of Furnace Materials in Atmospheres Containing Ammonia

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-09 DOI: 10.1002/maco.202414499

Michaela Sommer, Matthias Steinbacher, Stefanie Hoja

{"title":"Thermochemical Corrosion of Furnace Materials in Atmospheres Containing Ammonia","authors":"Michaela Sommer, Matthias Steinbacher, Stefanie Hoja","doi":"10.1002/maco.202414499","DOIUrl":"https://doi.org/10.1002/maco.202414499","url":null,"abstract":"<p>Furnace components are made from heat-resistant materials that must withstand the long-term effects of the atmospheres used during heat treatment. In a nitriding furnace, the atmosphere usually consists of various gaseous media that react not only with the treated parts but also with the furnace equipment. This leads to thermochemical corrosion, even with carefully selected heat-resistant and stainless steels or nickel-based alloys. The present research focuses on determining the long-term effects of ammonia-containing atmospheres on the metallic furnace materials AISI 309, AISI 314, Alloy 600, and Alloy 601. The materials studied were exposed to numerous nitriding or nitrocarburizing treatments for more than 10 years to investigate the long-term effects of repeated contact with ammonia-containing atmospheres. The surface layers of the samples were characterized by several methods to determine the microstructural changes due to nitrogen absorption. A different nitrogen absorption of the metallic furnace materials from the heat treatment atmosphere, depending on the material properties, could be proven by the investigations.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"226-239"},"PeriodicalIF":1.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414499","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine Learning–Assisted Risk Assessment of Pitting Corrosion Susceptibility of AA1050 in Ethanol-Containing Fuels

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-08 DOI: 10.1002/maco.202414598

Lukas C. Jarren, Eugen Gazenbiller, Visheet Arya, Rüdiger Reitz, Matthias Oechsner, Christian Feiler, Mikhail L. Zheludkevich, Daniel Höche

{"title":"Machine Learning–Assisted Risk Assessment of Pitting Corrosion Susceptibility of AA1050 in Ethanol-Containing Fuels","authors":"Lukas C. Jarren, Eugen Gazenbiller, Visheet Arya, Rüdiger Reitz, Matthias Oechsner, Christian Feiler, Mikhail L. Zheludkevich, Daniel Höche","doi":"10.1002/maco.202414598","DOIUrl":"https://doi.org/10.1002/maco.202414598","url":null,"abstract":"<p>The ability to assess the risk of corrosion of metallic structures in particular environments holds considerable significance in the field of automotive industry. In recent years, machine learning has evolved into a crucial tool to evaluate the complex and multidimensional corrosion phenomena. In this paper, the special case of non-aqueous alcoholate pitting corrosion of AA1050 in ethanol-blended fuels with water and chloride contamination is examined via supervised machine learning techniques in order to distinguish between safe and unsafe conditions. The data space was created by conducting dedicated experiments with varying ethanol–fuel–water ratios, temperatures, and surface preparations. The classifier's performance rating of 0.87 (balanced accuracy) indicates an outstanding predictive ability and highlights the model's usefulness as decision support for subsequent experiments.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 3","pages":"398-407"},"PeriodicalIF":1.6,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414598","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of Spray Distance on the Hot Corrosion Behavior of HVOF-Sprayed NiCrAlY Coatings in a Simulated Gas Turbine Environment 喷涂距离对模拟燃气轮机环境中 HVOF 喷涂的 NiCrAlY 涂层热腐蚀性能的影响

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-08 DOI: 10.1002/maco.202414432

Kourosh Jafarzadeh, Somayyeh Sharif hassan, Zia Valefi, Seyed Hojatollah Hosseini, Hadiseh Mazhari Abbasi, Saeid Taghi Ramezani

{"title":"The Effect of Spray Distance on the Hot Corrosion Behavior of HVOF-Sprayed NiCrAlY Coatings in a Simulated Gas Turbine Environment","authors":"Kourosh Jafarzadeh, Somayyeh Sharif hassan, Zia Valefi, Seyed Hojatollah Hosseini, Hadiseh Mazhari Abbasi, Saeid Taghi Ramezani","doi":"10.1002/maco.202414432","DOIUrl":"https://doi.org/10.1002/maco.202414432","url":null,"abstract":"<div>\u0000 \u0000 <p>To utilize the unique properties of coatings produced using the high-velocity oxy-fuel (HVOF) method, this study examined the effect of spray distance on the hot corrosion behavior of NiCrAlY coatings deposited on a steel substrate. The coating samples were obtained at spray distances of 20, 25, and 30 cm. The flow rates of oxygen and propane were maintained constant at 300 and 60 lit/min, respectively. Additionally, the powder feeding rate was 32 g/min. The samples were then subjected to the hot corrosion test in a salt mixture of Na<sub>2</sub>SO<sub>4</sub>−60% V<sub>2</sub>O<sub>5</sub> at 900°C in an ambient atmosphere. The surface and the cross section of the samples were observed using a scanning electron microscope (SEM) and the chemical composition of different sections was determined by energy-dispersive spectroscopy (EDS). The phases were also characterized using X-ray diffraction analysis (XRD). The best corrosion resistance was found in the sample coating formed at a spraying distance of 20 cm, as the results showed that increasing the spraying distance led to a reduction in the thermal and kinetic energy of the flame, resulting in increased porosity in the coating. This behavior can be attributed to the low oxide content of the coating, the higher aluminum content, and the richer NiAl phase, which serves as a reservoir for aluminum.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"240-251"},"PeriodicalIF":1.6,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362893","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

Effect of Temperature and Oxygen Concentration on Corrosion of J55 Steel in an O2/CO2 Environment

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-07 DOI: 10.1002/maco.202414278

Haozhe Ma, Xiaohong Yu, Xiaolan Jia, Haobo Yu

{"title":"Effect of Temperature and Oxygen Concentration on Corrosion of J55 Steel in an O2/CO2 Environment","authors":"Haozhe Ma, Xiaohong Yu, Xiaolan Jia, Haobo Yu","doi":"10.1002/maco.202414278","DOIUrl":"https://doi.org/10.1002/maco.202414278","url":null,"abstract":"<div>\u0000 \u0000 <p>The corrosion product competition and transformation process of J55 under an O<sub>2</sub>/CO<sub>2</sub> environment in the temperature range of 50–350°C and 0–1 MPa oxygen partial pressure range, respectively, were studied using electrochemical and surface analysis techniques as well as thermodynamic calculations to determine its corrosion rate change law and pitting corrosion phenomenon. This study demonstrates that the uniform corrosion rate of J55 with increasing temperature shows a trend of first increasing, then decreasing, and finally increasing. The transformation of its corrosion products, from FeCO<sub>3</sub> into Fe<sub>3</sub>O<sub>4</sub>, is consistent with the altering corrosion rate law with increasing temperatures. J55 corrodes faster at 350°C as the O<sub>2</sub> partial pressure increases. When the O<sub>2</sub> partial pressure is low, the predominant kind of corrosion product that is obtained is FeCO<sub>3</sub>; when the O<sub>2</sub> partial pressure exceeds 0.2 MPa, all corrosion products are transformed into iron oxides. As the oxygen partial pressure increases, J55's corrosion product film becomes increasingly less protective of the substrate, making the substance more vulnerable to corrosion reactions.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"252-264"},"PeriodicalIF":1.6,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362725","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