Materials and Corrosion-werkstoffe Und Korrosion最新文献_第3页

Cover Picture: Materials and Corrosion. 12/2024 封面图片：材料与腐蚀。12/2024

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-12-04 DOI: 10.1002/maco.202470115

Katharina Beck, Till König, Ekin Senvardarli, Frauke Hinrichs, Martin Heilmaier, Mathias C. Galetz

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Contents: Materials and Corrosion. 12/2024 内容：材料与腐蚀。12/2024

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-12-04 DOI: 10.1002/maco.202470117

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Masthead: Materials and Corrosion. 12/2024 报头：材料与腐蚀。12/2024

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-12-04 DOI: 10.1002/maco.202470116

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Effects of Reduction-Oxidation Cycles on the Structure, Heat and Corrosion Resistance of Haynes 282 Nickel Alloy Manufactured by Using Powder Bed Fusion-Laser Beam Method

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-24 DOI: 10.1002/maco.202414477

Janusz Kamiński, Bogusława Adamczyk-Cieślak, Mateusz Kopec, Andrzej Kosiński, Ryszard Sitek

{"title":"Effects of Reduction-Oxidation Cycles on the Structure, Heat and Corrosion Resistance of Haynes 282 Nickel Alloy Manufactured by Using Powder Bed Fusion-Laser Beam Method","authors":"Janusz Kamiński, Bogusława Adamczyk-Cieślak, Mateusz Kopec, Andrzej Kosiński, Ryszard Sitek","doi":"10.1002/maco.202414477","DOIUrl":"https://doi.org/10.1002/maco.202414477","url":null,"abstract":"<div>\u0000 \u0000 The study investigated the effect of the oxidation–reduction cycles on the structure and corrosion resistance of the Haynes 282 nickel superalloy at ambient and elevated temperatures. The comparative studies were performed on specimens produced by the Powder Bed Fusion-Laser Beam (PBF-LB) process and those in the as-received state. The microstructure of the PBF-LB specimens was studied using optical and scanning electron microscopy, whereas the chemical composition of the scale formed after isothermal oxidation in an air atmosphere at 750°C was analysed using energy-dispersive X-ray spectroscopy and X-ray Photoelectron Spectroscopy. The phase composition of the formed scale was determined by X-ray diffraction. Laboratory-induced hydrogen atmosphere was adopted through cathodic charging. A comparison of corrosion resistance was carried out on two types of Haynes 282 specimens, before and after the oxidation and cathodic charging processes. It was found that PBF-LB process could be effectively used to manufacture Haynes 282 nickel superalloy with low porosity and a fine crystalline microstructure. The low-porous, fine-crystalline microstructure of the tested specimens produced by the PBF-LB technique exhibited good resistance to electrochemical corrosion, slightly lower than wrought Haynes 282 nickel superalloy specimens.</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 3","pages":"354-367"},"PeriodicalIF":1.6,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554994","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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A Detailed Review of Numerical Modeling of Flow Accelerated Corrosion: Challenges and Opportunities for the Future

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-22 DOI: 10.1002/maco.202414625

Yazan Meri, Osman Siddiqui, Ihsan ulhaq Toor, Afaque Shams

{"title":"A Detailed Review of Numerical Modeling of Flow Accelerated Corrosion: Challenges and Opportunities for the Future","authors":"Yazan Meri, Osman Siddiqui, Ihsan ulhaq Toor, Afaque Shams","doi":"10.1002/maco.202414625","DOIUrl":"https://doi.org/10.1002/maco.202414625","url":null,"abstract":"<div>\u0000 \u0000 Flow-accelerated corrosion (FAC) is a complex phenomenon that poses a significant threat to the integrity of piping and fittings in power plants, affecting infrastructure protection and power production reliability. The presence of corrosive substances in the fluid and elevated flow velocity and temperature leads to increased material loss in piping and equipment. Understanding the intricate relationship among the contributing factors such as flow dynamics, environmental factors, and corrosion reactions is essential for developing effective prediction and mitigation strategies. This review discusses the recent advancements in the numerical modeling of FAC using computational fluid dynamics (CFD). The numerical models presented show abilities to predict FAC profiles across multiple power plant components, and a review was conducted on the evaluation of these predictions with experimental measurements. Notably, increased turbulence in the flow significantly contributed to prediction errors, emphasizing the need for advanced turbulence models in numerical simulations of FAC. Addressing these challenges is crucial for maintaining sustainable infrastructure and reducing industrial risks through enhanced predictive maintenance strategies.</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 3","pages":"368-385"},"PeriodicalIF":1.6,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555202","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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Formation and Evolution of Corrosion Products on Eutectic Microstructures: A Novel Study to Understand Corrosion Protection of Zn–Al–Mg Coatings

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-14 DOI: 10.1002/maco.202414474

Jiashun Zhou, Youbin Wang, Yongkun Li, Zhengbing Xu, Kezhun He, Zhaodong Wang

{"title":"Formation and Evolution of Corrosion Products on Eutectic Microstructures: A Novel Study to Understand Corrosion Protection of Zn–Al–Mg Coatings","authors":"Jiashun Zhou, Youbin Wang, Yongkun Li, Zhengbing Xu, Kezhun He, Zhaodong Wang","doi":"10.1002/maco.202414474","DOIUrl":"https://doi.org/10.1002/maco.202414474","url":null,"abstract":"<div>\u0000 \u0000 Zn–Al–Mg coatings contain Zn phase and Zn/Mg–Zn, Zn/Al, and Zn/Al/Mg–Zn eutectics. The formation and evolution of corrosion products on different eutectics that affect the corrosion resistance of Zn–Al–Mg coatings require further exploration. In this work, the formation and evolution of corrosion products on different microstructures were investigated. The results show that while the corrosion products on different microstructures are mainly Zn5(OH)8Cl2, the phase composition and morphology of corrosion products vary significantly. These differences in corrosion products on each microstructure were discussed in detail. The corrosion protective properties of corrosion products on different microstructures were compared. The protective properties of corrosion products are closely related to the content and morphology of Zn5(OH)8Cl2 and Zn6Al2(OH)16CO3. The corrosion products on Zn/Al/Mg2Zn11 eutectic are the finest and densest, with high content of Zn5(OH)8Cl2 and Zn6Al2(OH)16CO3, showing good protective performance. Increasing the content of Zn/Al/Mg–Zn eutectic to enhance the corrosion resistance of Zn–Al–Mg coatings should be considered in the subsequent work.</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 3","pages":"408-423"},"PeriodicalIF":1.6,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554961","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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Effect of Surface Pretreatments on the Formation of Zr-Based Conversion Layers on Zn–Al–Mg Alloy-Coated Steel

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-14 DOI: 10.1002/maco.202414664

Maria Ponomareva, Jiri Duchoslav, David Stifter, Matthias Kogler, Daniela Miano, Elahe Akbari, Arie Bleij, Gerald Luckeneder, Tanja Singewald, Markus Valtiner

{"title":"Effect of Surface Pretreatments on the Formation of Zr-Based Conversion Layers on Zn–Al–Mg Alloy-Coated Steel","authors":"Maria Ponomareva, Jiri Duchoslav, David Stifter, Matthias Kogler, Daniela Miano, Elahe Akbari, Arie Bleij, Gerald Luckeneder, Tanja Singewald, Markus Valtiner","doi":"10.1002/maco.202414664","DOIUrl":"https://doi.org/10.1002/maco.202414664","url":null,"abstract":"Zr-based conversion coatings represent an environmentally conscious alternative to traditional phosphating and chromating in the automotive industry. In this study, we employ XPS and LEIS to investigate the formation of Zr-conversion layers on Zn–Mg–Al alloy after alkaline and acidic model pretreatments. On alkaline pretreated surfaces, a Zr-oxide/oxyfluoride layer and an underlying Mg–Al–fluoride layer are formed, whereas acidic pretreatment results in only an oxidic layer. The thickness of the Zr-layer depends on pretreatment pH and immersion time. Acidic treatment achieves an approximately 23 nm-thick Zr-oxide/oxyfluoride layer after 1 min, while prolonged treatment increases the thickness of the oxidic layer for strong alkaline and acidic conditions. Mild alkaline pretreatments, however, do not benefit from extended immersion. F-induced corrosion pits are observed after mild alkaline treatment. The strong alkaline pretreatment proved to be the most efficient in creating a double-layered Zr-conversion coating with increased oxidic layer thickness over time.","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 4","pages":"510-518"},"PeriodicalIF":1.6,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414664","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809832","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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Influence of Surface Preparation on the Durability of Repair Coatings for Prepainted Galvanised Steel

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-13 DOI: 10.1002/maco.202414674

Nathalie LeBozec, Philippe Picot, Anne LeGac, Dominique Thierry

{"title":"Influence of Surface Preparation on the Durability of Repair Coatings for Prepainted Galvanised Steel","authors":"Nathalie LeBozec, Philippe Picot, Anne LeGac, Dominique Thierry","doi":"10.1002/maco.202414674","DOIUrl":"https://doi.org/10.1002/maco.202414674","url":null,"abstract":"The performance of repair coating solutions at damaged areas on prepainted galvanised steel was assessed in a cyclic corrosion test and after outdoor exposures in marine atmosphere. Different surface preparations at corroded defects before the application of the repair coatings were tested, for example, water-jetting, the use of commercial cleaning solutions either acidic or alkaline, a chrome-free conversion coating and the application of Zn-Al primer coating. A poorer performance of the repair coatings was observed on damaged and corroded systems compared to damaged-only panels. This was connected to the presence of remaining chlorides and corrosion products at scribes on corroded panels before repair coating application, which indicated the need for careful surface preparation to minimise the concentration of soluble salts. This was achieved by water-jetting and the use of alkaline or acidic cleaning which provided satisfying corrosion performance of the repair coatings particularly with a two-layer system as expected from the thicker layer of the reparation and presence of a primer. The weakest protection was observed when the one-layer repair coating was applied on a chemically treated surface, which may be related to the weakness of the coating.","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 4","pages":"533-541"},"PeriodicalIF":1.6,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414674","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143809438","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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Study of Global Seawater Corrosivity Classification Based on Marine Environmental Factors Data

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-13 DOI: 10.1002/maco.202414612

Penghui Zhang, Shaotong Liu, Kangkang Ding, Shuai Wu, Lin Fan

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Atypical Attack of the Dissimilar Metal Welds of a Water–Water Energetic Reactor Nuclear Power Plant Secondary Circuit: Possible Mechanisms of Failure

IF 1.6 4区材料科学

Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-11-12 DOI: 10.1002/maco.202414502

Aleš Návoj

{"title":"Atypical Attack of the Dissimilar Metal Welds of a Water–Water Energetic Reactor Nuclear Power Plant Secondary Circuit: Possible Mechanisms of Failure","authors":"Aleš Návoj","doi":"10.1002/maco.202414502","DOIUrl":"https://doi.org/10.1002/maco.202414502","url":null,"abstract":"<div>\u0000 \u0000 Dissimilar metal welds are utilized in the energy industry to connect two materials with different material characteristics. In the case of nuclear power plants, the connected materials tend to be low-alloyed steel and high-alloyed material. Despite different material and corrosion properties, under the proper environmental conditions, the used construction materials and weld metals are protected either by a passive layer or by a high-temperature oxide. Although dissimilar metal welds are used in both primary and secondary circuits, the most frequently documented damage is in the secondary circuit, where, in addition to material heterogeneities, local environmental heterogeneities may form. For dissimilar metal welds in WWER nuclear power plants, a water–water energetic reactor, a subtype of pressure water reactor, we note two main types of attack near the dissimilar fusion boundary: on the carbon steel side or on the high-alloyed weld metal side (X10CrNiMoN16-25-6). The possible causes of the latter “atypical” corrosion attack are debated and can be generalized as a consequence of change of the grain boundary condition.</div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 3","pages":"436-445"},"PeriodicalIF":1.6,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554972","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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