Oxidation of Metals最新文献

Assessing Stainless Steel Compatibility in Flowing FLiBe Salt

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2025-01-03 DOI: 10.1007/s11085-024-10325-z

B. A. Pint, D. Sulejmanovic, C. G. Parker, Y.-F. Su, M. J. Lance, R. Pillai

引用次数: 0

Transition from Internal to External Oxidation in Binary Fe–Cr Alloys Around 900 °C

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-12-06 DOI: 10.1007/s11085-024-10322-2

A. Chyrkin, J. Froitzheim, W. J. Quadakkers

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High-Temperature Oxidation Study in a Multi-Oxidant Environment Using 18O Tracer 利用 18O 示踪剂进行多氧化剂环境中的高温氧化研究

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-11-28 DOI: 10.1007/s11085-024-10323-1

Juho Lehmusto, Anton Ievlev, James Kurley III, Bruce A. Pint

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Influence of the Cooling Rate on the Wüstite Content in Oxide Layers Formed During High-Temperature Oxidation of Hot-Worked Tool Steel with High Thermal Conductivity 冷却速率对高导热性热锻工具钢高温氧化过程中形成的氧化层中绿帘石含量的影响

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-11-28 DOI: 10.1007/s11085-024-10324-0

Tilen Balaško, Barbara Šetina Batič, Jaka Burja

{"title":"Influence of the Cooling Rate on the Wüstite Content in Oxide Layers Formed During High-Temperature Oxidation of Hot-Worked Tool Steel with High Thermal Conductivity","authors":"Tilen Balaško, Barbara Šetina Batič, Jaka Burja","doi":"10.1007/s11085-024-10324-0","DOIUrl":"10.1007/s11085-024-10324-0","url":null,"abstract":"<div><p>The transformation of wüstite (FeO) in the oxide layer formed during high temperature oxidation (600 °C and 700 °C) on hot-worked tool steel was investigated. Wüstite plays an important role in the oxide layer of these steels used for hot working. However, understanding its transformation behavior during cooling is crucial for controlling the final oxide layer structure. Slow cooling rates have a significant influence on the final wüstite content, resulting in inaccurate representations of the composition of the oxide layer at temperatures above 570 °C. The aim of this study was to determine the influence of cooling rate on the wüstite content in the oxide layer after high temperature oxidation. It was found that for hot-worked steel samples oxidized at 700 °C or higher, a cooling rate of more than 1000 °C min<sup>−1</sup> is required to suppress the eutectoid transformation and maintain the realistic wüstite content. At lower temperatures (570 °C–600 °C), a cooling rate of more than 100 °C min<sup>−1</sup> is required to achieve the wüstite content observed at oxidation temperatures in the oxide layer. Overall, the hematite and magnetite contents also vart with the cooling rate, which is associated with changes in the wüstite content.</p></div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"102 1","pages":"1 - 14"},"PeriodicalIF":2.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11085-024-10324-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737342","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

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

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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

引用次数: 0

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