Oxidation of Metals最新文献

High-Temperature Oxidation Behavior of Pt-10Rh-Zr(Y) Alloys and its Influence on their Mechanical Properties

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2025-01-31 DOI: 10.1007/s11085-025-10327-5

Changyi Hu, Yan Wei, Qianqi Wei, Xiangxing Xiao, Xian Wang, Xuehang Wang, Junmei Guo

{"title":"High-Temperature Oxidation Behavior of Pt-10Rh-Zr(Y) Alloys and its Influence on their Mechanical Properties","authors":"Changyi Hu, Yan Wei, Qianqi Wei, Xiangxing Xiao, Xian Wang, Xuehang Wang, Junmei Guo","doi":"10.1007/s11085-025-10327-5","DOIUrl":"10.1007/s11085-025-10327-5","url":null,"abstract":"<div><p>In most cases, platinum-based alloys are mainly used in high-temperature oxidation environments, and mastering their oxidation behavior and the impact of oxidation on performance is crucial. Two new platinum-based high-temperature alloys, Pt-10Rh-0.5Zr and Pt-10Rh-0.5Zr-0.2Y, were designed and prepared in this study. The research focuses on the high-temperature oxidation behavior of the alloys in air and the influence of oxidation on the room temperature mechanical properties of the alloys. The results show that the relationship between oxidation weight loss and temperature of these two platinum-based alloys conforms to the Arrhenius equation within the temperature range of 1400–1600 ℃, and the oxidation resistance of Pt-10Rh-0.5Zr-0.2Y alloy is better than that of Pt-10Rh.0.5Zr alloy. Examination of the surface and fracture morphology of these oxidized platinum-based alloys revealed that zirconium and yttrium oxide particles, such as ZrO<sub>2</sub> and Y<sub>2</sub>O<sub>3</sub>, with different morphologies and structures were formed. The study also found that adding a small amount of zirconium and yttrium can significantly improve the room temperature ultimate tensile strength of Pt-10Rh alloy. However, after 20 h of high-temperature oxidation treatment at 1400 and 1500 °C, the tensile strength and plasticity at room temperature of both alloys showed a significant downward trend. Especially, the room temperature plasticity of Pt-10Rh-0.5Zr-0.2Y alloy decreased by more than 80% and exhibited a brittle fracture mode. Our research will contribute to the design and development of new high-temperature platinum-based alloys.</p></div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"102 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143110120","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

Unraveling the Microstructure Evolution and Element Diffusion Behavior of Gradient Nanostructured Heat-Resistant Stainless Steel during High-Temperature Oxidation 梯度纳米结构耐热不锈钢高温氧化过程中微观组织演变及元素扩散行为的研究

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2025-01-16 DOI: 10.1007/s11085-025-10326-6

L. L. Wei, C. H. Xia, Y. G. Wang, J. Kundin, X. J. Jin

{"title":"Unraveling the Microstructure Evolution and Element Diffusion Behavior of Gradient Nanostructured Heat-Resistant Stainless Steel during High-Temperature Oxidation","authors":"L. L. Wei, C. H. Xia, Y. G. Wang, J. Kundin, X. J. Jin","doi":"10.1007/s11085-025-10326-6","DOIUrl":"10.1007/s11085-025-10326-6","url":null,"abstract":"<div><p>Thermal stability of nanocrystalline grains is a crucial factor that determines the unique microstructure and properties of the gradient nanostructured (GNS) materials at elevated temperatures. Nevertheless, oxidation is unavoidable for GNS metal materials utilized at high temperatures, potentially impacting the microstructure stability. In this study, we reveal the correlation between the high-temperature selective oxidation and the thermal stability of GNS layer through experiments and phase-field simulations. The improved oxidation resistance of GNS samples was ascribed to the excellent thermal stability of (Cr, Mn)<sub>3</sub>O<sub>4</sub> oxides and a large proportion of low-energy twin boundaries. After prolonged oxidation, the GNS layer exhibited a bimodal microstructure. To analyze the elemental diffusion mechanism and microstructure evolution in the GNS layer, the phase-field simulation technique was employed. Selective oxidation led to the concentration of chromium reduced in the grain-boundary region, thereby diminishing the thermal stability of the grains and causing abnormal grain growth in the surface layer. Particularly, grain growth had a cumulative effect, the topmost grains coarsening will cause grain growth in the underlying layers, and subsequently, the grains in the interior region will also be gradually affected.</p></div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"102 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994337","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

Assessing Stainless Steel Compatibility in Flowing FLiBe Salt 评估不锈钢在流动FLiBe盐中的相容性

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 二元Fe-Cr合金在900℃左右从内部氧化到外部氧化的转变

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

引用次数: 0

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

引用次数: 0

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

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