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

Effect of Grouting Materials on the Cathodic Protection Effectiveness of Shield-Crossing Pipeline 注浆材料对跨盾管阴极保护效果的影响

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-09-03 Epub Date: 2026-04-30 DOI: 10.1002/maco.70157

Xu Huatian, Song Qingfeng, Zhang Jiale, Shen Yan, Gao Kewei, Dong Liang

{"title":"Effect of Grouting Materials on the Cathodic Protection Effectiveness of Shield-Crossing Pipeline","authors":"Xu Huatian, Song Qingfeng, Zhang Jiale, Shen Yan, Gao Kewei, Dong Liang","doi":"10.1002/maco.70157","DOIUrl":"https://doi.org/10.1002/maco.70157","url":null,"abstract":"<div>\u0000 \u0000 <p>This study established a full-scale test platform to measure the polarization curves, instant-off potentials, and current distribution of carbon steel pipes under combined cathodic protection (CP) in three grouting materials (fly ash concrete, foam concrete, bentonite concrete), soil, and sand. CP simulations were conducted for validation, and the potential distribution under various working conditions was investigated. The results show that the open-circuit potential (OCP) of carbon steel pipes in soil is significantly more negative than that in concrete or sand, thereby elevating the risk of galvanic corrosion at transitions where the pipeline crosses different media. Polarization results indicate that the current density required to achieve the same degree of polarization for carbon steel follows the order: soil > foam concrete > bentonite concrete > fly ash concrete > sand. Under low CP current conditions, the galvanic effect dominates, causing protection current to converge toward regions with higher potential. At high CP currents, differences in cathodic polarization behavior become dominant, elevating and homogenizing the potential level into the effective protection range.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 9","pages":"1471-1482"},"PeriodicalIF":2.1,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872131","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

Self-Healing Corrosion Inhibition of Epoxy Polymer Composite Coatings Using Corrosion Inhibitor and Water-Dispersed Nanoparticles 缓蚀剂和水分散纳米颗粒在环氧聚合物复合涂层中的自愈缓蚀作用

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-09-03 Epub Date: 2026-05-18 DOI: 10.1002/maco.70169

Yuto Masuda, Ji Ha Lee, Indra Wahyudhin Fathona, Eishi Tanabe, Akihiro Yabuki

{"title":"Self-Healing Corrosion Inhibition of Epoxy Polymer Composite Coatings Using Corrosion Inhibitor and Water-Dispersed Nanoparticles","authors":"Yuto Masuda, Ji Ha Lee, Indra Wahyudhin Fathona, Eishi Tanabe, Akihiro Yabuki","doi":"10.1002/maco.70169","DOIUrl":"https://doi.org/10.1002/maco.70169","url":null,"abstract":"<div>\u0000 \u0000 <p>Polymer composite coatings were fabricated using water-dispersed nanoparticles and corrosion inhibitor. Carbon steel substrates were coated with a mixture of solvent-based epoxy resin, water-dispersed silica nanoparticles (NPs) with diameters from 45 to 180 nm, and magnesium phosphate powder (MP) particles with an average diameter of 1 µm. The coating containing 4 wt% NPs exhibited a resistance of more than 1200 Ω cm<sup>2</sup> after 24 h of immersion into a NaCl solution, which was approximately twice that of the NP-free coating. The incorporation of larger NPs resulted in a resistance of 2200 Ω cm<sup>2</sup> after 24 h, representing the highest polarization resistance achieved in this study. This work is an investigation into the role of NPs and water within a polymer matrix. The NPs were preferentially distributed around the MP particles. In addition, the polymer coating containing 4 wt% water-dispersed NPs showed lower levels of water uptake compared with that of the NP-free coating. The self-healing corrosion inhibition performance of the composite coating is attributed to the sustained release of corrosion inhibitor through uniformly distributed pores within the polymer matrix.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 9","pages":"1546-1555"},"PeriodicalIF":2.1,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872103","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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EVENTS 事件

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-09-03 DOI: 10.1002/maco.70227

引用次数: 0

Corrosion Behavior and Mechanism of Spark Plasma Sintered and Arc-Melted MoNbTaW Refractory High-Entropy Alloys in Molten Cerium 火花等离子烧结和电弧熔化MoNbTaW难熔高熵合金在熔融铈中的腐蚀行为及机理

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-09-03 Epub Date: 2026-05-27 DOI: 10.1002/maco.70174

Yu Zhang, Hongbing Du, Shengkai Sun, Jiwen Liu, Haiyu Li, Wang Han, Xuehui Li, Yanxin Zhuang

{"title":"Corrosion Behavior and Mechanism of Spark Plasma Sintered and Arc-Melted MoNbTaW Refractory High-Entropy Alloys in Molten Cerium","authors":"Yu Zhang, Hongbing Du, Shengkai Sun, Jiwen Liu, Haiyu Li, Wang Han, Xuehui Li, Yanxin Zhuang","doi":"10.1002/maco.70174","DOIUrl":"https://doi.org/10.1002/maco.70174","url":null,"abstract":"<div>\u0000 \u0000 <p>Refractory high-entropy alloys (RHEAs) show promising prospects in nuclear applications due to outstanding radiation tolerance, mechanical performance and corrosion resistance. In this study, MoNbTaW RHEA was synthesized via spark plasma sintering (SPS) at 2200°C, while the alloy with identical composition prepared via arc melting served as the control. The two alloys were first systematically characterized for microstructure, densification, grain size and phase constitution, followed by static immersion corrosion testing in molten cerium at 1400°C for 10 h, as well as systematic testing of their room-temperature mechanical properties. The results reveal that Ta and W possess higher corrosion resistance than Mo and Nb. Benefiting from refined grains and homogeneous microstructure, the SPS alloy achieves better corrosion resistance and mechanical performance, with a mass loss rate of 3.57%, a corrosion rate of 2.72 μm/h, a Vickers hardness of 570.8 HV and a compressive strength of 2585 MPa.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 9","pages":"1567-1578"},"PeriodicalIF":2.1,"publicationDate":"2026-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148872153","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

Hot Corrosion Performance of Inconel 625 in 60% NaNO₃–40% KNO₃ at 550°C: A Study for Sustainable Energy Systems Inconel 625在550℃下60%纳米₃-40% KNO₃的热腐蚀性能研究

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-08-04 Epub Date: 2026-04-07 DOI: 10.1002/maco.70141

N. Pavithradevi, B. Arulmurugan

{"title":"Hot Corrosion Performance of Inconel 625 in 60% NaNO₃–40% KNO₃ at 550°C: A Study for Sustainable Energy Systems","authors":"N. Pavithradevi, B. Arulmurugan","doi":"10.1002/maco.70141","DOIUrl":"https://doi.org/10.1002/maco.70141","url":null,"abstract":"<div>\u0000 \u0000 <p>The use of concentrated solar power (CSP) structures is raising owed to the expanding claim for sustainable energy. Thermal energy storage (TES) acts a valuable function in focusing this issue. The present study investigated the high temperature corrosion behaviour of Inconel 625 for CSP structural applications exposed to a hot corrosion condition of 60% NaNO₃–40% KNO₃ solar salt at 550°C. The corrosion behaviour of the substrate was estimated at several intervals varying from 100 to 500 h. The corrosion kinetics were estimated through the weight variation process, and the degradation of the specimens was studied through field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction analysis. The results confirm that initial corrosion resistance is controlled by a protective Cr₂O₃ layer, while prolonged exposure leads to Cr depletion, oxide breakdown, and formation of non-protective MoO₃ and Fe₂O₃. The growth of NiCr₂O₃ specifies good corrosion resistance around a 400-h interval. The study provides key insights into material selection and durability for TES containers in CSP applications.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 8","pages":"1240-1253"},"PeriodicalIF":2.1,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667184","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

Failure Investigation of Alloy 625 Sockolets After Prolonged Service in an Ammonia Cracker Unit 氨裂解装置625合金套筒长时间使用失效分析

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-08-04 Epub Date: 2026-04-03 DOI: 10.1002/maco.70143

Kamlesh Chandra, N. Naveen Kumar, Niraj Kumar

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Enhanced Corrosion Resistance of Hybrid LM13 Composites Reinforced With Zirconium Carbide and Flyash Using Squeeze Casting 挤压铸造增强碳化锆和粉煤灰增强LM13复合材料的耐腐蚀性能

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-08-04 Epub Date: 2026-04-06 DOI: 10.1002/maco.70145

B. Prakash, S. Irudayaraj, N. Sivanantham

引用次数: 0

Anaerobic Corrosion Phenomena of Cast Iron and Copper in Artificial Groundwater at Elevated Temperature 高温人工地下水中铸铁和铜的厌氧腐蚀现象

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-08-04 Epub Date: 2026-04-16 DOI: 10.1002/maco.70154

Louisa Panjiyar, Martin Ende, Christiane Stephan-Scherb

{"title":"Anaerobic Corrosion Phenomena of Cast Iron and Copper in Artificial Groundwater at Elevated Temperature","authors":"Louisa Panjiyar, Martin Ende, Christiane Stephan-Scherb","doi":"10.1002/maco.70154","DOIUrl":"https://doi.org/10.1002/maco.70154","url":null,"abstract":"<p>The material choice for the canister for the deep geological repository of high-level nuclear waste is a crucial aspect for long-term safety of the repository. In the presented study, the impact of salinity of water in a bentonite slurry on the corrosion behavior of cast iron with spheroidal graphite and copper was investigated. The metal coupons were exposed under anoxic conditions at 60°C for 4 months in a bentonite suspension prepared with artificial water representing Opalinus clay pore water chemistry with different salinity and a water with hydrochemistry from a crystalline host rock in Germany. Light-optical microscopy, µ-Xray fluorescence, X-ray diffraction, µ-Raman spectroscopy and scanning electron microscopy was applied to investigate the corrosion mechanisms on varying length scales. After exposure, cast iron with spheroidal graphite shows an increase in material degradation with higher salinity of the artificial water. The thickness of the Cu<sub>2</sub>O layer increases with lower salinity. Despite the difference in material chemistry, the results suggest a general dependence of the corrosion process on salinity of the electrolyte in a bentonite slurry.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"77 8","pages":"1262-1277"},"PeriodicalIF":2.1,"publicationDate":"2026-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.70154","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148667385","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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Masthead: Materials and Corrosion. 8/2026 报头：材料与腐蚀。8/2026

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-08-04 DOI: 10.1002/maco.70206

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Optimization of Y Addition in a Tribaloy-Type Alloy for Improved Oxidation Resistance 优化添加Y提高合金抗氧化性能

IF 2.1 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2026-08-04 Epub Date: 2026-04-07 DOI: 10.1002/maco.70140

Jiahong Zhu, Giovanni Mainardi, Brian Bates, Ying Zhang

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