Materials and Corrosion-werkstoffe Und Korrosion最新文献

Simultaneous Electrochemical and Inductively Coupled Plasma Optical Emission Spectroscopy Measurements on AA 7075 AA 7075的电化学和电感耦合等离子体发射光谱同时测量

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-10-05 Epub Date: 2026-07-05 DOI: 10.1002/maco.70191

Claudia Kutzer-Schulze, Michael Schneider, Alexander Michaelis

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Tribological Behavior and Lead-Bismuth Eutectic Corrosion Resistance of a Laser-Cladding Fe47.0Cr24.1Mo6.0Nb2.9Ni15.0Al5.0 High-Entropy Alloy Coating 激光熔覆Fe47.0Cr24.1Mo6.0Nb2.9Ni15.0Al5.0高熵合金涂层的摩擦学行为及抗铅铋共晶腐蚀性能

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-10-05 Epub Date: 2026-06-19 DOI: 10.1002/maco.70181

Yue Zhou, Jing Liu, Hui Huang, Xingming Yang, Yunpeng Fu, Lin Luo, Zhizhong Jiang

{"title":"Tribological Behavior and Lead-Bismuth Eutectic Corrosion Resistance of a Laser-Cladding Fe47.0Cr24.1Mo6.0Nb2.9Ni15.0Al5.0 High-Entropy Alloy Coating","authors":"Yue Zhou, Jing Liu, Hui Huang, Xingming Yang, Yunpeng Fu, Lin Luo, Zhizhong Jiang","doi":"10.1002/maco.70181","DOIUrl":"https://doi.org/10.1002/maco.70181","url":null,"abstract":"<div>\u0000 \u0000 A Fe47.0Cr24.1Mo6.0Nb2.9Ni15.0Al5.0 high-entropy alloy (HEA) coating containing Laves and B2-NiAl phases was fabricated on 304 stainless steel substrates by laser cladding. Compared with the substrate, the coating exhibited increases of 88% in hardness and 75% in wear resistance by dry sliding tests in air at room temperature, 350°C, and 550°C for 30 min, mainly owing to the synergistic effects of dispersion strengthening and second-phase strengthening. The corrosion behavior was investigated by exposure in lead-bismuth eutectic (LBE) at 550°C with dissolved oxygen concentration of 1 × 10−6 wt.% for 500, 1000, 1500, and 2000 h. After exposure, the coating formed a compact Fe3O4-FeCr2O4-Al2O3 triple-layer oxide scale with a thickness of less than 1 μm, which was approximately one-tenth of that formed on the substrate under the same conditions. The B2-NiAl phase promoted the formation of the protective oxide scale, whereas the Laves phase suppressed its excessive growth. These results provide a mechanistic understanding and technical guidance for the design of protective materials for key moving parts in lead-cooled fast reactors (LFRs).</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 10","pages":"1606-1621"},"PeriodicalIF":2.1,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100156","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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Failure Analysis and Stress Corrosion Cracking Mechanism of UNS N08825 Hydraulic Control Lines in Heavy Oil Thermal Recovery Wells UNS no8825稠油热采井液压控制线失效分析及应力腐蚀开裂机理

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-10-05 Epub Date: 2026-06-09 DOI: 10.1002/maco.70183

Zhilong Liu, Yanping Sun, Jun Sun, Ye Xin, Hao Chen, Fen Wan, Haiepng Wang, Wenchao Zhou, Fengxun Liu

{"title":"Failure Analysis and Stress Corrosion Cracking Mechanism of UNS N08825 Hydraulic Control Lines in Heavy Oil Thermal Recovery Wells","authors":"Zhilong Liu, Yanping Sun, Jun Sun, Ye Xin, Hao Chen, Fen Wan, Haiepng Wang, Wenchao Zhou, Fengxun Liu","doi":"10.1002/maco.70183","DOIUrl":"https://doi.org/10.1002/maco.70183","url":null,"abstract":"<div>\u0000 \u0000 Corrosion cracking occurred in UNS N08825 hydraulic control lines during heavy oil thermal recovery at 350°C. In this study, failure analysis was conducted through fracture surface analysis, crack metallographic analysis, material property testing, and failure reproduction tests. Based on SEM images of the fracture and metallographic images of the cracks, it was found that the cracks in the hydraulic control line initiated from the outer surface of the pipe wall and propagated toward the inner wall in a dendritic morphology until fracture, with the fracture surface exhibiting brittle fracture characteristics. Based on fractography and crack analysis, the failure was identified as stress corrosion cracking (SCC). Corrosion tests were performed to reproduce and verify the failure mechanism. The corrosion tests further elucidated the role of oxygen in SCC, demonstrating that oxygen synergistically accelerates pitting with chloride ions, facilitates hydrogen sulfide penetration into the grain interior, and ultimately leads to SCC under applied stress.</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 10","pages":"1672-1682"},"PeriodicalIF":2.1,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100178","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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Cover Picture: Materials and Corrosion. 10/2026 封面图片：材料与腐蚀。10/2026

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-10-05 DOI: 10.1002/maco.70247

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Environment Stewardship Using Mangifera indica Kernel's Biochar Incorporated CeO2 Nanotubes Loaded With Self-Healing Benzotriazole as Corrosion Resistant Coatings to Extend the Life of Mild Steel Meant for Industrial Aqueous Medium 利用芒果仁生物炭含CeO2纳米管负载自愈性苯并三唑作为耐腐蚀涂层以延长工业含水介质用低碳钢的使用寿命

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-10-05 Epub Date: 2026-06-18 DOI: 10.1002/maco.70190

Sakshi Khokher, Neeru Jhanjhriya, Meenakshi Thakran, Priti Pahuja, Suman Lata

{"title":"Environment Stewardship Using Mangifera indica Kernel's Biochar Incorporated CeO2 Nanotubes Loaded With Self-Healing Benzotriazole as Corrosion Resistant Coatings to Extend the Life of Mild Steel Meant for Industrial Aqueous Medium","authors":"Sakshi Khokher, Neeru Jhanjhriya, Meenakshi Thakran, Priti Pahuja, Suman Lata","doi":"10.1002/maco.70190","DOIUrl":"https://doi.org/10.1002/maco.70190","url":null,"abstract":"<div>\u0000 \u0000 In this investigative study, a fresh amalgamated composite coating BTA@MBCENT (benzotriazole or BTA-loaded mango kernel biochar or MB incorporated CeO2 nanotubes, abbreviated as CENT) with varying weight percentages in epoxy resin is prepared and applied to cherish the environment for industries using mild steel, specifically using saline water (3.5% sodium chloride) circulation systems. The novel coating MBCENT was then employed to examine its life-lengthening and self-healing properties against corrosion, a priori and a posteriori incorporating BTA. After completing the necessary characterization, the coating formulations applied over mild steel surfaces exhibited a water-repellent property. The release kinetics of self-healing BTA inhibitor were evaluated using ultraviolet spectroscopy. Protection efficacy for the coated steel samples immersed is investigated through electrochemical methods. BTA@MBCENT (1.0%) demonstrated an exceptional protection efficiency of 88.63% within 42 days of immersion, suggesting the self-healing coating may serve as a viable alternative to conventional anticorrosive coatings for mild steel against aggressive chloride ions of saline industrial water.</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 10","pages":"1717-1733"},"PeriodicalIF":2.1,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100427","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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Corrosion-Protection of T122 Steel Using g-C3N5-Embedded Epoxy Coatings g- c3n5包埋环氧涂料对T122钢的防腐作用

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-10-05 Epub Date: 2026-06-16 DOI: 10.1002/maco.70185

Martha Patricia Hernández-Valencia, Tathagata Kar, Maura Casales-Díaz, José Juan Ramos-Hernández, América María Ramírez-Arteaga, José Gonzalo González-Rodríguez, Roy López-Sesenes, Mohan Kumar Kesarla

{"title":"Corrosion-Protection of T122 Steel Using g-C3N5-Embedded Epoxy Coatings","authors":"Martha Patricia Hernández-Valencia, Tathagata Kar, Maura Casales-Díaz, José Juan Ramos-Hernández, América María Ramírez-Arteaga, José Gonzalo González-Rodríguez, Roy López-Sesenes, Mohan Kumar Kesarla","doi":"10.1002/maco.70185","DOIUrl":"https://doi.org/10.1002/maco.70185","url":null,"abstract":"Corrosion-protection performance of a polymeric coating composed of g-C3N5 (CN) combined with epoxy (EP) on a T122 steel is systematically evaluated in two corrosive environments i.e., 3.5% NaCl and 0.1 M H2SO4. The electrochemical corrosion experiments suggest that the g-C3N5 concentration significantly affects the performance of EP towards the corrosion protection. The composite of EP containing 2% g-C3N5 (TEP2CN) exhibited the highest polarization/noise resistance values (Rp and Rn, respectively) and showed the best performance against corrosion. This is mostly attributed to the blockage of the pores in the EP by the low quantity of added g-C3N5 which subsequently prohibits the ionic diffusion to the T122 steel surface. However, upon increasing the g-C3N5-content to 5% (in TEP5CN), the protection performance degrades significantly because in this case, the coating partially delaminates facilitating the passage of the corrosive ions to diffuse through the coating to the T122 steel. The obtained electrochemical results suggest that the CN, when embedded in optimized quantity, can significantly improve the corrosion resistance of epoxy-based coatings.","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 10","pages":"1734-1746"},"PeriodicalIF":2.1,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.70185","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100241","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}

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Microbiologically Influenced Corrosion in an Oxidizing KMnO4 Transfer Pipeline: Role of Biofilm-Induced Anaerobic Microenvironments in Premature Failure 微生物对氧化氧化KMnO4输送管道腐蚀的影响：生物膜诱导的厌氧微环境在过早失效中的作用

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-10-05 Epub Date: 2026-06-24 DOI: 10.1002/maco.70192

Shiva Bejugama, Vemoori Raju

{"title":"Microbiologically Influenced Corrosion in an Oxidizing KMnO4 Transfer Pipeline: Role of Biofilm-Induced Anaerobic Microenvironments in Premature Failure","authors":"Shiva Bejugama, Vemoori Raju","doi":"10.1002/maco.70192","DOIUrl":"https://doi.org/10.1002/maco.70192","url":null,"abstract":"<div>\u0000 \u0000 In this study, premature leakage of a stainless-steel pipeline used to transfer a 4% potassium permanganate (KMnO4) solution was investigated to identify the degradation mechanism responsible for the failure after a short service period. Visual inspection revealed tubercle formation and deposit accumulation on the inner pipe surface, while scanning electron microscopy (SEM) analysis showed localized corrosion features, including micro-pitting and tunnel-like cavities beneath biofilm layers. SEM-EDS analysis detected sulfur-rich corrosion products within the deposits and pit interiors, suggesting sulfide formation possibly associated with microbiologically influenced corrosion. The observed corrosion mechanism is consistent with microbial sulfate reduction coupled with electrochemical iron dissolution, leading to iron sulfide deposition and localized under-deposit corrosion. The study demonstrates that biofilm formation can create localized anaerobic microenvironments that enable microbiologically influenced corrosion (MIC), even in oxidizing KMnO4 transfer systems, providing new insights into MIC risks in chemical-handling pipelines.</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 10","pages":"1683-1691"},"PeriodicalIF":2.1,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149100495","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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Machine Learning Approach for Corrosion Analysis in Copper–Stainless Steel Welds Produced by Cold Gas Tungsten Arc Welding 冷钨极电弧焊铜不锈钢焊缝腐蚀分析的机器学习方法

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-10-05 Epub Date: 2026-06-22 DOI: 10.1002/maco.70186

Mariia Rashkovets, Nicola Contuzzi, Vito Denora, Ruslan Mendagaliev, Giuseppe Casalino

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Relationship Between the Ferrite/Austenite Ratio and Pitting Corrosion Resistance of 2507 Super Duplex Stainless Steel Produced by the LP-DED Process LP-DED法制备2507超级双相不锈钢铁素体/奥氏体比与耐点蚀性的关系

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-10-05 Epub Date: 2026-06-09 DOI: 10.1002/maco.70182

Sébastien Ballesio, Jordan Queval, Chloé Comas, Matthieu Dhondt, Cédric Doudard, Fabien Szmytka

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Contents: Materials and Corrosion. 10/2026 内容：材料与腐蚀。10/2026

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-10-05 DOI: 10.1002/maco.70245

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