Materials and Corrosion-werkstoffe Und Korrosion最新文献_第8页

Effect of Temperature and Oxygen Concentration on Corrosion of J55 Steel in an O2/CO2 Environment 温度和氧浓度对J55钢在O2/CO2环境中腐蚀的影响

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 The corrosion product competition and transformation process of J55 under an O2/CO2 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 FeCO3 into Fe3O4, is consistent with the altering corrosion rate law with increasing temperatures. J55 corrodes faster at 350°C as the O2 partial pressure increases. When the O2 partial pressure is low, the predominant kind of corrosion product that is obtained is FeCO3; when the O2 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.</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}

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Influences of Sr(OH)2 on the Structure and Corrosion Resistance of Micro-Arc Oxidation Coatings Formed on TC4 Titanium Alloy Sr(OH)2对TC4钛合金微弧氧化膜组织及耐蚀性的影响

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-07 DOI: 10.1002/maco.202414621

Qiming Luo, Shaolan Yang, Ping Wang, Fengyu Sun, Manlan Zhu

{"title":"Influences of Sr(OH)2 on the Structure and Corrosion Resistance of Micro-Arc Oxidation Coatings Formed on TC4 Titanium Alloy","authors":"Qiming Luo, Shaolan Yang, Ping Wang, Fengyu Sun, Manlan Zhu","doi":"10.1002/maco.202414621","DOIUrl":"https://doi.org/10.1002/maco.202414621","url":null,"abstract":"<div>\u0000 \u0000 In order to improve the comprehensive properties of TC4 titanium alloy, micro-arc oxidation (MAO) coating is prepared on the surface of a TC4 substrate in a basic electrolyte with varying concentrations of Sr(OH)2. The surface morphology, phase composition, element distribution, and corrosion resistance of MAO coatings are analyzed by scanning electron microscopy, X-ray diffraction, an energy-dispersive spectrometer, the electrochemical test, and the erosion–corrosion test. The results show that the voltage of the MAO process increases and then decreases; the surface morphology and density of the coatings are greatly improved after doping Sr(OH)2. When the concentration of Sr(OH)2 is 0.6 g L−1, the thickness, hardness, and adhesion strength of the coating reach the maximum values of 37.04 μm, 836.2 HV, and 21.8 N, respectively. At this time, the wear resistance and corrosion resistance are the best, and the friction coefficient and the corrosion rate are the lowest: 0.3352 and 1.04 × 10−10 mm a−1, respectively.</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 3","pages":"424-435"},"PeriodicalIF":1.6,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554952","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

Understanding the Effect of Corrosion Resistance in Welded AA2198-T8 Alloy: Microstructural-Electrochemical Insights 了解焊接AA2198-T8合金耐蚀性的影响：微观结构-电化学见解

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-06 DOI: 10.1002/maco.202414545

Caruline de Souza C. Machado, João V. S. Araujo, José W. C. Hernández, Mariana X. Milagre, Oscar M. P. Ramirez, Hercílio G. de Melo, Sajid Farooq, Isolda Costa

{"title":"Understanding the Effect of Corrosion Resistance in Welded AA2198-T8 Alloy: Microstructural-Electrochemical Insights","authors":"Caruline de Souza C. Machado, João V. S. Araujo, José W. C. Hernández, Mariana X. Milagre, Oscar M. P. Ramirez, Hercílio G. de Melo, Sajid Farooq, Isolda Costa","doi":"10.1002/maco.202414545","DOIUrl":"https://doi.org/10.1002/maco.202414545","url":null,"abstract":"<div>\u0000 \u0000 In this study, we explore the corrosion resistance of AA2198-T8 alloy in friction stir-welded zones, focusing on microstructure changes and resulting corrosion susceptibility. Macrogalvanic coupling effects are observed in weldment under corrosive conditions, particularly in the welding joint (WJ), heat-affected zones, and base metal (BM). Severe localized corrosion is prevalent in anodic zones, revealing intricate trenching patterns around micrometric particles in cathodic domains. Investigating isolated zones exposes SLC across all welding-affected regions and BM, underscoring the involvement of microgalvanic cells in corrosion. The novel utilization of a syringe cell as an electrochemical tool proves to be instrumental in delineating the electrochemical characteristics of welding testing zones. Notably, stir zone within WJ emerges as the region depicting the lowest corrosion resistance, a critical finding substantiated by localized electrochemical impedance spectroscopy. These insights into the interplay of electrochemical phenomena and microstructural attributes have implications for advancing corrosion mitigation strategies and alloy engineering in materials science.</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"326-336"},"PeriodicalIF":1.6,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362302","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

Investigation and In Vitro Studies of a ZrO2/g-C3N4 Composite Coated on 316L Stainless Steel for Biomedical Applications 生物医学用316L不锈钢涂层ZrO2/g-C3N4复合材料的体外研究

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-06 DOI: 10.1002/maco.202414525

Manoja Tharmaraj, Abinaya Radhakrishnan, Anuradha Ramani, Nagarajan Srinivasan

{"title":"Investigation and In Vitro Studies of a ZrO2/g-C3N4 Composite Coated on 316L Stainless Steel for Biomedical Applications","authors":"Manoja Tharmaraj, Abinaya Radhakrishnan, Anuradha Ramani, Nagarajan Srinivasan","doi":"10.1002/maco.202414525","DOIUrl":"https://doi.org/10.1002/maco.202414525","url":null,"abstract":"<div>\u0000 \u0000 The advancement of smart coatings for bioimplants has yielded a combination of biocompatibility and corrosion resistance. 316L stainless steel (316LSS) is a commonly used commercial implant, but it has limitations in biocompatibility and durability, which hinders the widespread utilization of 316LSS alloys. In this study, the 316LSS alloy is coated with a mixture of zirconium dioxide (ZrO2), prepared using the sol–gel method, and graphitic carbon nitride (g-C3N4), synthesized by thermal polymerization. XRD and Raman analyses confirmed the crystal structure and purity of the synthesized samples. The corrosion resistance property was assessed using OCP, POL, and PEIS. The findings demonstrate that the ZrO2/g-C3N4-coated 316LSS shows significantly enhanced corrosion resistance and biocompatibility in a simulated body fluid. The in vitro bioactivity test reveals that the ZrO2/g-C3N4 coating leads to the formation of an apatite layer over the surface of 316LSS. The elemental composition of the HAP deposition was confirmed by Raman analysis. The results suggested that the ZrO2/g-C3N4–coated 316LSS substrate is a promising material for use in biomedical applications.</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"284-294"},"PeriodicalIF":1.6,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362299","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}

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Ant-Nest Corrosion in Copper Pipes Triggered by Ethylene Vinyl Acetate-Based Adhesive 醋酸乙烯基胶粘剂对铜管蚁巢腐蚀的影响

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-06 DOI: 10.1002/maco.202414559

Luca Cozzarini, Lucia Marsich, Alessio Ferluga

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Synergistic Effect of Sn Doping in TiO2 Nanoparticles as an Additive in Anti-Corrosion Coatings Sn掺杂TiO2纳米粒子在防腐涂料中的协同作用

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-06 DOI: 10.1002/maco.202414492

Fariza Abdul Rahman, Wan Jefrey Basirun, Mohd Rafie Johan

{"title":"Synergistic Effect of Sn Doping in TiO2 Nanoparticles as an Additive in Anti-Corrosion Coatings","authors":"Fariza Abdul Rahman, Wan Jefrey Basirun, Mohd Rafie Johan","doi":"10.1002/maco.202414492","DOIUrl":"https://doi.org/10.1002/maco.202414492","url":null,"abstract":"<div>\u0000 \u0000 Corrosion is a major problem and protective coatings offer an effective solution. However, organic coatings are often associated with microcracks caused by the evaporation of solvents during coating preparation. This study investigates the use of titanium dioxide (TiO2) nanoparticles as a coating additive to protect mild steel surfaces. Additionally, doping TiO2 with tin (Sn) is believed to enhance its properties due to the reduced size of the nanoparticles. These nanoparticles were synthesised using the sol–gel method and subjected to various analyses. The coated mild steel samples were prepared using the dip-coating method and immersed in 3.5 wt.% sodium chloride (NaCl) solution for 30 days. Electrochemical impedance spectroscopy (EIS) and Tafel polarisation showed that the Sn-doped TiO2 nanoparticles as an additive improved the corrosion resistance, as evidenced by a positive shift in corrosion potential (Ecorr) and reduced corrosion current density (Icorr).</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"295-304"},"PeriodicalIF":1.6,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362300","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}

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Masthead: Materials and Corrosion. 10/2024 刊头：材料与腐蚀10/2024

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-03 DOI: 10.1002/maco.202470102

引用次数: 0

Cover Picture: Materials and Corrosion. 10/2024 封面图片：材料与腐蚀10/2024

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-03 DOI: 10.1002/maco.202470101

Daniel Blücher, Torstein Lange, Judit Sandquist, Inge Saanum, Mikko Uusitalo

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Contents: Materials and Corrosion. 10/2024 内容：材料与腐蚀。10/2024

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-03 DOI: 10.1002/maco.202470103

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Optical Surface Roughness Estimation Using Artificial Intelligence 基于人工智能的光学表面粗糙度估计

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-09-29 DOI: 10.1002/maco.202414564

Jacob Maxa, Mathias Nowottnick

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