Oxidation of Metals最新文献_第6页

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}

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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

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Utilization of Alumina Scale Formation by Ni-Base Alloys for High-Temperature Oxidation and Corrosion Resistance in Harsh Environments 利用镍基合金形成的氧化铝鳞片实现恶劣环境中的高温氧化和耐腐蚀性能

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-07-30 DOI: 10.1007/s11085-024-10280-9

Bingtao Li, Lee M. Pike

{"title":"Utilization of Alumina Scale Formation by Ni-Base Alloys for High-Temperature Oxidation and Corrosion Resistance in Harsh Environments","authors":"Bingtao Li, Lee M. Pike","doi":"10.1007/s11085-024-10280-9","DOIUrl":"10.1007/s11085-024-10280-9","url":null,"abstract":"<div>High-temperature alloys rely on the formation of a protective oxide scale to resist high-temperature oxidation and corrosion attack, and chromia is the most common oxide to provide this function in commercial alloys. However, certain harsh environments require alloys that utilize the formation of even more protective oxide films to provide improved performance and longer lifetime. In these cases, an alumina scale becomes a viable solution to protect high-temperature alloys. This paper summarizes high-temperature oxidation and corrosion behaviors of several high-temperature Ni- and Co-base alloys tested under various high-temperature conditions, including short-term and long-term oxidation, cyclic oxidation, dynamic (burner rig) oxidation, water vapor oxidation, nitridation, and carburization at temperatures ranging from 871 to 1093 °C (1600–2000°F). The oxidation and corrosion behaviors are compared between the alumina-forming and chromia-forming alloys, and the results show that the alumina-forming alloys were significantly superior to the chromia-forming alloys for high-temperature oxidation and corrosion resistance in terms of oxidation and corrosion rate reduction, scale stability and adhesion, mass penetration suppression, etc. Based on the extensive tests, alumina scales were highly effective in resisting oxidation, nitridation, and carburization attacks, especially under severe oxidation and corrosion conditions. To further demonstrate the benefits of an alumina scale, an alumina-forming alloy with pre-oxidation heat-treatment was also studied in the nitridation test.</div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 6","pages":"1315 - 1330"},"PeriodicalIF":2.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141866553","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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Study of the Role of Nitrogen in the Oxidation of Titanium-Based Alloys by Changing the Reaction Gas 通过改变反应气体研究氮在钛基合金氧化过程中的作用

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-07-30 DOI: 10.1007/s11085-024-10275-6

Kevin Gautier, Daniel Monceau, Enrica Epifano, Damien Connétable, Thomas Gheno

{"title":"Study of the Role of Nitrogen in the Oxidation of Titanium-Based Alloys by Changing the Reaction Gas","authors":"Kevin Gautier, Daniel Monceau, Enrica Epifano, Damien Connétable, Thomas Gheno","doi":"10.1007/s11085-024-10275-6","DOIUrl":"10.1007/s11085-024-10275-6","url":null,"abstract":"<div>The role of nitrogen in the oxidation of Ti-2W, Ti-10Al-2W (at.%) and Ti6242S was investigated using experiments in air and in Ar-20%O2, and two-stage experiments where the reaction gas was switched from one mixture to the other. When switching from Ar-20%O2 to air, the oxidation rates first increased during a short period, then decreased. This surge of mass gain following the introduction of air was attributed to N pickup, forming a nitride layer and a N-enriched zone in the alloy, below the oxide layer. The subsequent decrease of oxidation rate was attributed to the formation of nitride and/or N-rich zone, which both act as diffusion barriers for oxygen. Switching from air to Ar-20%O2 caused an increase in the oxidation rate of the W-containing alloys, which was attributed to the consumption of this barrier. The gas change had no significant effect on the oxidation rate of Ti6242S, which formed a much thinner nitride layer in air. The faster the nitride layer grows, the faster it is consumed when removing N from the reaction gas, probably because of a higher diffusion rate of N in W-doped TiO2 compared to TiO2 formed on Ti6242S.</div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 5","pages":"861 - 872"},"PeriodicalIF":2.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11085-024-10275-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141866545","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

Comparison of Performance of NiCr2O4 and Cr2O3 Formed on the Ni-Based Superalloy RR1000 Under Corrosive Conditions 镍基超合金 RR1000 上形成的 NiCr2O4 和 Cr2O3 在腐蚀条件下的性能比较

IF 2.1 3区材料科学

Oxidation of Metals Pub Date : 2024-07-30 DOI: 10.1007/s11085-024-10256-9

S. Gray, M. Mphahlele, D. M. Collins, C. Jackson, M. C. Hardy, M. P. Taylor

{"title":"Comparison of Performance of NiCr2O4 and Cr2O3 Formed on the Ni-Based Superalloy RR1000 Under Corrosive Conditions","authors":"S. Gray, M. Mphahlele, D. M. Collins, C. Jackson, M. C. Hardy, M. P. Taylor","doi":"10.1007/s11085-024-10256-9","DOIUrl":"10.1007/s11085-024-10256-9","url":null,"abstract":"<div>Samples of the Ni-based superalloy, RR1000, were exposed to 98% Na2SO4/2% NaCl salts at 700 °C with a flux of 1.5 µg cm−2 h−1 in flowing air + 300 ppm SO2 for a total of 250 h. Three pre-exposure conditions were studied: a bare reference alloy; fast heating to the test temperature followed by a 100 h hold; heating at a rate of 5 °C min−1 to the test temperature following by a 100 h hold. The surface oxide formed under the latter two conditions were Cr2O3 or NiCr2O4, respectively. The results show corrosion pit formation on the surface of the base, reference sample, and no pits present on the sample with the preformed Cr2O3. Some protection was found for the sample heated at 5 °C min−1 with a delay in the progression to accelerated corrosion attack. Additional testing under moisture containing air was also conducted. This showed no obvious difference in surface oxide morphology under the two tested heating rates for the short-term exposures examined but a difference was noted to be dependent on the moisture content of the air.</div>","PeriodicalId":724,"journal":{"name":"Oxidation of Metals","volume":"101 5","pages":"1091 - 1102"},"PeriodicalIF":2.1,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11085-024-10256-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141866547","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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