Oxidation of Metals最新文献

Segmentation and Metallographic Evaluation of Aluminium Slurry Coatings Using Machine Learning Techniques 利用机器学习技术对铝浆涂层进行分段和金相评估

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-10-26 DOI: 10.1007/s11085-024-10321-3

Maria del Mar Juez Lorenzo, Vladislav Kolarik, Khyati Sethia, Petr Strakos

{"title":"Segmentation and Metallographic Evaluation of Aluminium Slurry Coatings Using Machine Learning Techniques","authors":"Maria del Mar Juez Lorenzo, Vladislav Kolarik, Khyati Sethia, Petr Strakos","doi":"10.1007/s11085-024-10321-3","DOIUrl":"10.1007/s11085-024-10321-3","url":null,"abstract":"<div><p>Analysis of scanning electron microscope (SEM) images is crucial for characterising aluminide diffusion coatings deposited via the slurry route on steels, yet challenging due to various factors like imaging artefacts, noise, and overlapping features such as resin, precipitates, cracks, and pores. This study focuses on determining the thicknesses of the coating layers Fe<sub>2</sub>Al<sub>5</sub> and, if present, FeAl, pore characteristics, and chromium precipitate fractions after the heat treatment that forms the diffusion coating. A deep learning SEM image segmentation model utilising U-Net architecture is proposed. Ground truth data were generated using the trainable Weka segmentation plugin in ImageJ, manually refined for accuracy, and supplemented with synthetic data from Blender 3D software for data augmentation of a limited number of SEM label images. The deep learning model trained on a combination of synthetic and real SEM data achieved mean dice scores of 98.7% ± 0.2 for the Fe<sub>2</sub>Al<sub>5</sub> layer, 82.6% ± 8.1 for pores, and 81.48% ± 3.6 for precipitates when evaluated on manually labelled SEM data. The deep learning procedure was applied to evaluate a series of SEM images of diffusion coatings obtained with three different slurry compositions. The evaluation revealed that using a slurry without a rheology modifier may lead to a thicker partial Fe<sub>2</sub>Al<sub>5</sub> layer that is formed by inward diffusion. The relation between the outward and inward diffusion Fe<sub>2</sub>Al<sub>5</sub> layers was not affected by the coating thickness. The thinner diffusion coating presents lower pores and chromium precipitate fractions independently of the slurry selected.</p></div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 6","pages":"1497 - 1512"},"PeriodicalIF":2.1,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11085-024-10321-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Editorial on Modeling, Prediction and Simulation 关于建模、预测和模拟的社论

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-10-09 DOI: 10.1007/s11085-024-10319-x

Clara Desgranges, Jérôme Favergeon, Bruce Pint, Daniel Monceau, Laurence Latu‑Romain, Stéphane Mathieu, Fernando Pedraza

引用次数: 0

Editorial on Oxidation in Complex Atmospheres 复杂大气中的氧化作用》社论

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-10-05 DOI: 10.1007/s11085-024-10318-y

Stéphane Mathieu, Jérôme Favergeon, Bruce Pint, Daniel Monceau, Clara Desgranges, Laurence Latu‑Romain, Fernando Pedraza

引用次数: 0

Editorial on Oxidation of Novel Metallic Materials (Intermetallics, MMCs, HEAs…) 关于新型金属材料（金属间化合物、MMC、HEA......）氧化的社论

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-10-04 DOI: 10.1007/s11085-024-10320-4

Clara Desgranges, Jérôme Favergeon, Bruce Pint, Daniel Monceau, Laurence Latu‑Romain, Stéphane Mathieu, Fernando Pedraza

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Editorial on Coatings 关于涂料的社论

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-09-30 DOI: 10.1007/s11085-024-10317-z

Bruce Pint, Jérôme Favergeon, Daniel Monceau, Clara Desgranges, Laurence Latu‑Romain, Stéphane Mathieu, Fernando Pedraza

引用次数: 0

Modeling the Role of the Grain Structure in the Oxidation of Polycrystals 晶粒结构在多晶体氧化过程中的作用建模

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-09-25 DOI: 10.1007/s11085-024-10311-5

Thomas Gheno, Walid Djedaa

{"title":"Modeling the Role of the Grain Structure in the Oxidation of Polycrystals","authors":"Thomas Gheno, Walid Djedaa","doi":"10.1007/s11085-024-10311-5","DOIUrl":"10.1007/s11085-024-10311-5","url":null,"abstract":"<div><p>The diffusion properties of polycrystalline materials depend on their grain shape and size, which determine the spatial distribution of grain boundaries. These morphological characteristics are of interest when evaluating an alloy ability to form a protective oxide scale by selective oxidation at high temperature. The composition changes induced by selective oxidation in 2D polycrystals were studied by finite element simulations. We examined the effect of the grain boundary orientation in lamellar polycrystals, and the effects of the grain size distribution in random equiaxed polycrystals. Fine-grained polycrystals were found to behave as uniform media. The effective diffusivity of fine lamellar polycrystals depends on the grain boundary orientation and is bounded by the upper and lower composite diffusivities, while the effective diffusivity of fine equiaxed polycrystals can be estimated by a modified Hart equation. The behavior of coarser equiaxed polycrystal was shown to vary according to the local grain size: the concentration at the alloy-scale interface is fully determined by the local grain size in larger grains, while it is affected by the surrounding grains in finer grains. Increasing the grain size dispersion led to a more scattered response and shifted the minimum interface concentrations toward lower values, which is expected to have a detrimental effect on the oxidation resistance.</p></div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 6","pages":"1481 - 1495"},"PeriodicalIF":2.1,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Pt Effect on the Bond-Coating/Superalloy Interdiffusion: Case of a Pt-Modified NiCoCrAlYTa Coating 铂对粘结涂层/超合金相互扩散的影响：铂改性镍钴铬铝钽涂层案例

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-09-23 DOI: 10.1007/s11085-024-10314-2

Aurélie Vande Put, Enrica Epifano, Fabrice Crabos, Daniel Monceau

引用次数: 0

Oxidation Properties of Additively Manufactured High Entropy Alloys: A Short Review 添加制造的高熵合金的氧化特性：简评

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-09-23 DOI: 10.1007/s11085-024-10313-3

Jhuo-Lun Lee, An-Chou Yeh, Hideyuki Murakami

{"title":"Oxidation Properties of Additively Manufactured High Entropy Alloys: A Short Review","authors":"Jhuo-Lun Lee, An-Chou Yeh, Hideyuki Murakami","doi":"10.1007/s11085-024-10313-3","DOIUrl":"10.1007/s11085-024-10313-3","url":null,"abstract":"<div><p>High entropy alloys (HEAs) challenge conventional alloy design by incorporating five or more principal elements in near-equal atomic proportions, forming random solid solutions with simple phases. HEAs exhibit exceptional properties such as high phase stability, mechanical strength, corrosion, oxidation, wear, fatigue resistance, and notable thermal stability. While traditional methods like arc melting and casting are often used for HEA preparation, they pose limitations due to cost and processing challenges. Additive manufacturing has emerged as a transformative technique, enabling the cost-effective fabrication of complex structures with customized properties. Here, we summarized the following “state-of-the-art” additively manufactured alloy systems: AlCrCoNiX (X = Fe, Si, Ti, etc.) HEAs, CoCrFeMnNi HEAs, and refractory HEAs. This review focused on elucidating their oxidation properties, emphasizing key findings, challenges, and opportunities. It also discussed the potential strategies for enhancing oxidation resistance. Additionally, it highlighted research gaps and underscored the urgent need for further exploration to meet the demands for high-temperature applications.</p></div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 6","pages":"1369 - 1379"},"PeriodicalIF":2.1,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

The Influence of Si on the High-Temperature Oxidation of Near-alpha Titanium Alloys 硅对近α钛合金高温氧化的影响

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-09-23 DOI: 10.1007/s11085-024-10310-6

Virgil Optasanu, Benjamin Vincent, Pascal Berger, María del Carmen Marco de Lucas, Tony Montesin, Luc Lavisse

引用次数: 0

Influence of Cobalt and Cobalt–Manganese Oxide Coating Thickness Deposited by DLI-MOCVD as a Barrier Against Cr Diffusion for SOC Interconnect 通过 DLI-MOCVD 沉积的钴和钴锰氧化物涂层厚度对 SOC 互连中防止铬扩散的影响

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-09-23 DOI: 10.1007/s11085-024-10316-0

R. Chanson, M. Bouvier, F. Miserque, F. Rouillard, F. Schuster

{"title":"Influence of Cobalt and Cobalt–Manganese Oxide Coating Thickness Deposited by DLI-MOCVD as a Barrier Against Cr Diffusion for SOC Interconnect","authors":"R. Chanson, M. Bouvier, F. Miserque, F. Rouillard, F. Schuster","doi":"10.1007/s11085-024-10316-0","DOIUrl":"10.1007/s11085-024-10316-0","url":null,"abstract":"<div><p>The influence of cobalt and cobalt–manganese oxide coating thickness on its ability to be a good diffusion barrier against Cr outward diffusion was investigated for stainless steel interconnects (AISI 441) of a solid oxide cell (SOC). The coatings were all synthesized using a DLI-MOCVD (Direct Liquid Injection-Metal Oxide Chemical Vapor Deposition) hot wall reactor. The study shows that a minimum cobalt oxide thickness of 300 nm was needed to be a good diffusion barrier against Cr for the 500-h exposure test. This observation was linked to the Mn concentration reached in the cobalt spinel during exposure. Indeed, during exposure at high temperature, Mn diffused from the substrate into the cobalt coating and transformed cobalt spinel into Co-Mn spinel. Whereas pure cobalt spinel was a good Cr diffusion barrier, cobalt-manganese spinel, Co<sub>3-x</sub>Mn<sub>x</sub>O<sub>4</sub>, was not when <i>x</i> > 2. The thickness of the cobalt coatings must be chosen so that the Mn quantity coming into it from diffusion from the substrate does not degrade the protectiveness of the coating.</p></div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 6","pages":"1467 - 1478"},"PeriodicalIF":2.1,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11085-024-10316-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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