Oxidation of Metals最新文献_第5页

Short-Term Oxidation in HT-SEM of the Pt-Containing TROPEA Single Crystal Ni-Based Superalloy from 680 to 1000 °C 含铂 TROPEA 单晶镍基超合金在 680 至 1000 °C 高温扫描电镜下的短期氧化作用

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-08-08 DOI: 10.1007/s11085-024-10272-9

S. Mathieu, R. Podor, M. Emo, L. Hunault, M. Vilasi, J. Cormier, F. Pedraza

{"title":"Short-Term Oxidation in HT-SEM of the Pt-Containing TROPEA Single Crystal Ni-Based Superalloy from 680 to 1000 °C","authors":"S. Mathieu, R. Podor, M. Emo, L. Hunault, M. Vilasi, J. Cormier, F. Pedraza","doi":"10.1007/s11085-024-10272-9","DOIUrl":"10.1007/s11085-024-10272-9","url":null,"abstract":"<div>Short-time oxidation exposures of the Ni-based TROPEA single crystal superalloy was implemented to determine the nature and quantities of transient oxides in the 680–1000 °C temperature range. Experiments were carried out in situ in the SEM with reduced air pressure (150 Pa, ({P}_{{O}_{2}}) ~ 31.5 Pa) compared to atmospheric conditions (105 Pa, ({P}_{{O}_{2}}) ~ 2.1 104 Pa). TEM characterization after oxidation showed the complexity of the oxidation products developed. Aluminum underwent internal oxidation between 680 and 1000 °C. During the limited duration of oxidation, the TROPEA alloy only formed a continuous alumina layer at 1000 °C. At 680 and 850 °C, the low diffusion rate and small amount of Al in the Ni-based single crystal led to the formation of a significant amount of transient oxides such as (Ni,Co)O, compared to the desired chromia or alumina protective oxides. The lower the temperature, the smaller the size of the internal Al2O3 precipitates and the larger the transient oxide amount, which would lower the resistance of TROPEA to Type II hot corrosion. In contrast after a transient period shorter than 22 h, during which multiple transient oxide developed, the oxidation resistance would be ensured at 1000 °C by the formation of a continuous Al2O3 scale.</div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 5","pages":"1211 - 1223"},"PeriodicalIF":2.1,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928116","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

Comparison of the Oxidation Behavior at High Temperature of INCONEL 625 Forged and Produced by Additive Manufacturing INCONEL 625 锻造件和增材制造件的高温氧化行为比较

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-08-08 DOI: 10.1007/s11085-024-10283-6

Bruno Wilson Andrade, Fábio Edson Mariani, Reginaldo Teixeira Coelho, Artur Mariano de Sousa Malafaia

{"title":"Comparison of the Oxidation Behavior at High Temperature of INCONEL 625 Forged and Produced by Additive Manufacturing","authors":"Bruno Wilson Andrade, Fábio Edson Mariani, Reginaldo Teixeira Coelho, Artur Mariano de Sousa Malafaia","doi":"10.1007/s11085-024-10283-6","DOIUrl":"10.1007/s11085-024-10283-6","url":null,"abstract":"<div>The microstructure and oxidation resistance at 900 and 1000 °C of additively manufactured (AM) by directed energy deposition (DED) and conventionally manufactured (CM) Inconel 625 alloys were studied. The microstructure of the AM samples was cellular, with Nb and Mo segregations located in the dendritic and interdendritic regions. At 900 °C, the oxidation rate was similar for both materials, but was clearly higher for the AM material at 1000 °C, being related to the segregation and porosity present in the microstructure of the AM samples. Decrease in porosity by DED changing parameters allowed better oxidation resistance, but still considerably inferior than CM samples at 1000 °C. After oxidation, a layer of Cr2O3 was identified under all conditions, providing high resistance to oxidation. Internal oxidation of alumina was also observed in the CM and AM samples. The delta phase Ni3(Nb, Mo) was observed for the CM and AM alloys at the grain boundaries (900 °C) and at the metal/oxide interface for both temperatures as a result of chromium depletion. Finally, the oxide layer formed was compact and dense, and some voids were formed in the subsurface region of the samples produced by AM.</div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 5","pages":"1181 - 1194"},"PeriodicalIF":2.1,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141929823","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

Effect of Ash and Sulphate on Corrosion of Ni-Based Alloys in a Simulated Oxyfuel Combustion Environment 灰分和硫酸盐对模拟富氧燃烧环境中镍基合金腐蚀的影响

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-08-07 DOI: 10.1007/s11085-024-10289-0

Xuteng Xi, Jianqiang Zhang, David J. Young

引用次数: 0

Influence of Oxidizing Atmosphere on the Oxidation of Ni-based Superalloy Rene 65 氧化气氛对镍基超合金昱 65 氧化的影响

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-08-06 DOI: 10.1007/s11085-024-10278-3

M. Huguet, G. Boissonnet, G. Bonnet, F. Pedraza

{"title":"Influence of Oxidizing Atmosphere on the Oxidation of Ni-based Superalloy Rene 65","authors":"M. Huguet, G. Boissonnet, G. Bonnet, F. Pedraza","doi":"10.1007/s11085-024-10278-3","DOIUrl":"10.1007/s11085-024-10278-3","url":null,"abstract":"<div>The influence of oxidizing atmosphere on the degradation mechanisms of the Ni-based superalloy Rene 65 was studied in this work. Oxidation was carried out in synthetic air, argon and water vapor (Ar + 18 vol.%H2O) between 700 and 900 °C, with samples built following additive manufacturing and forging processing routes. The results showed that the processing route and hence, the derived microstructure did not significantly affect the oxidation behavior. In contrast, the oxidizing atmosphere markedly modified the oxidation kinetics, the growth of the oxide layers and the overall oxidation mechanisms. The resulting thin oxide scales were made of NiCr2O4 and Cr2O3 at 700 °C, while at 800 and 900 °C the oxide layer was composed of an external Cr2O3 layer on top of an internal α-Al2O3 layer resulting from the lower partial pressure of oxygen underneath the chromia layer. The presence of nitrogen in the synthetic air favored the internal formation of TiN, while the absence of nitrogen in argon revealed the doping effect of Ti on the formation of the Cr2O3 layer. The effect of water vapor in Ar was not significant as the oxidation behavior was close to that observed under argon.</div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 5","pages":"1131 - 1141"},"PeriodicalIF":2.1,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141929830","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

Influence of Alloy 625 Manufacturing Process on 950 °C Oxidation Behavior in Air and Post-oxidation High-Cycle Fatigue Performance 合金 625 制造工艺对 950 °C 空气氧化行为和氧化后高循环疲劳性能的影响

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-08-06 DOI: 10.1007/s11085-024-10286-3

G. de Leon Nope, G. Wang, B. Gleeson

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Corrosion of a Nickel-Based Alumina-Forming Alloy in Molten NaCl–MgCl2 at 600 °C For the Development of a Molten Salt Nuclear Reactor 600 °C 下 NaCl-MgCl2 熔液中镍基氧化铝成型合金的腐蚀，用于开发熔盐核反应堆

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-08-05 DOI: 10.1007/s11085-024-10264-9

Louis Pellicot, Nathalie Gruet, Jérôme Serp, Romain Malacarne, Sophie Bosonnet, Gaëtan Touze, Justyna Grzonka, Laure Martinelli

{"title":"Corrosion of a Nickel-Based Alumina-Forming Alloy in Molten NaCl–MgCl2 at 600 °C For the Development of a Molten Salt Nuclear Reactor","authors":"Louis Pellicot, Nathalie Gruet, Jérôme Serp, Romain Malacarne, Sophie Bosonnet, Gaëtan Touze, Justyna Grzonka, Laure Martinelli","doi":"10.1007/s11085-024-10264-9","DOIUrl":"10.1007/s11085-024-10264-9","url":null,"abstract":"<div>Molten chloride salts represent a very corrosive medium due to the amount of impurities they contain and that essentially comes from moisture. In this work, an industrial nickel-based alumina-forming alloy was preoxidized and corroded for 500 h in the NaCl–MgCl2 eutectic. Electrochemistry and SEM analyses were used to prepare and analyse the corrosion test. Both the nickel-rich matrix and the alumina scale formed during preoxidation seemed to remain stable during the corrosion test contrary to some of the chromium carbides initially present in the columnar microstructure of the alloy. The use of X-ray tomography coupled with SEM observation revealed a preferential dissolution of the chromium carbides connected to the alloy/salt interface. X-ray tomography reveals a chromium carbides network enabling a deep molten salt infiltration within the alloy due to their preferential dissolution. Molten salt infiltration in the dissolved carbides network then leads to the oxidation of aluminium present in the alloy into a mixed MgAl2O4 spinel. An oxoacido-basic reaction between the alumina scale formed at the alloy surface during preoxidation and MgO dissolved in the salt is also discussed. This work shows that nickel-based alumina-forming alloy present a realistic interest and that the microstructure of the alloy should be optimized in further work to enhance corrosion resistance.</div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 5","pages":"1041 - 1054"},"PeriodicalIF":2.1,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11085-024-10264-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141929832","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}

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Chlorine-Induced Stress Corrosion Cracking of Single Crystal Superalloys at 550 °C 单晶超合金在 550 ℃ 下的氯应力腐蚀开裂

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-08-05 DOI: 10.1007/s11085-024-10282-7

F. Duarte Martinez, Karl Dawson, Gordon Tatlock, J. Leggett, G. Gibson, J. C. Mason-Flucke, J. R. Nicholls, A. Syed, N. Morar, S. Gray

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Temperature Dependent Early-Stage Oxidation Dynamics of Cu(100) Film with Faceted Holes 带刻面孔的铜(100)薄膜随温度变化的早期氧化动力学

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-08-01 DOI: 10.1007/s11085-024-10274-7

Meng Li, Matthew T. Curnan, Stephen D. House, Wissam A. Saidi, Judith C. Yang

{"title":"Temperature Dependent Early-Stage Oxidation Dynamics of Cu(100) Film with Faceted Holes","authors":"Meng Li, Matthew T. Curnan, Stephen D. House, Wissam A. Saidi, Judith C. Yang","doi":"10.1007/s11085-024-10274-7","DOIUrl":"10.1007/s11085-024-10274-7","url":null,"abstract":"<div>Fundamental understanding of surface oxidation dynamics is critical for rational corrosion protection and advanced manufacturing of nanostructured oxides. In situ environmental TEM (ETEM) provides high spatial (nano- to atomic- scale) and temporal (< 0.1 s) resolution to investigate the early-stage oxidation/corrosion dynamics of metals and alloys. Thin samples with facets are widely used to enable cross-sectional observation of the oxidation dynamics in ETEM. However, how different facet orientations oxidize under the same conditions, and how these facets change the oxidation process, has not been investigated before. Using in situ ETEM, we systematically compare the oxidation dynamics of Cu(001) thin films, with faceted holes exposing {100} and {110} facets at temperatures ranging from 250–600 °C under 0.03 Pa O2. Oxidation preference is observed to change, from Cu(110) facets at lower temperatures to Cu(100) facets at ~ 500 °C. Oxide growth mechanisms change from outward growth on Cu2O surfaces at low temperatures, to inward growth on Cu-Cu2O interfaces at high temperatures. At high temperatures (500–600 °C), a rod-like Cu2O morphology is observed, with side facets of ~ {024} and top facets of {100} on Cu(100). This differs from the square-shaped Cu2O exposing {110} facets formed on Cu(001) surfaces. Rod-like oxides exhibit directional growth along their lengths with linear growth rates, regardless of rod length and width. This suggests that O from Cu(001) surfaces, rather than Cu(100) facets, serves as an O source for oxide growth. These results show a direct comparison of oxidation at different orientations with temperature, underscoring the temperature dependence of oxidation preference. Our results also suggest future in situ ETEM experiments viewing oxidation corrosion cross-sectionally should be cautious when oxide size is comparable with sample thickness, as the oxidizing mechanism may change due to sample thickness.</div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 5","pages":"1237 - 1248"},"PeriodicalIF":2.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141883035","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}

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Use of In Situ SEM Multiple Cracking Test to Correlate Crack Propagation Mode with Acoustic Emission Signals in Thermal Oxide Scales: Application to Ni/NiO System 利用原位扫描电子显微镜多重裂纹测试将裂纹扩展模式与热氧化物尺度中的声发射信号相关联：在镍/氧化镍体系中的应用

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-08-01 DOI: 10.1007/s11085-024-10277-4

S. Houde, J. Marteau, J. Favergeon

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Oxidation Behavior of Additively Manufactured Ti-added FeCrAl Alloys 添加钛的铁铬铝合金的氧化行为

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-08-01 DOI: 10.1007/s11085-024-10276-5

Irina Fedorova, Mikael Kjellen, Saud Saleem, Dennis Karlsson, Fredrik Meurling, Roger Berglund

引用次数: 0