Effect of specimen thickness on chromia scaling of Ni25Cr in N-2-O-2-H2O test gases at 1000 degrees C

Haensel M.; Turan E.; Shemet V.; Gruener D.; Breuer U.; Simon D.; Gorr B.; Christ H. -J.; Quadakkers W. J.

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Effect of specimen thickness on chromia scaling of Ni25Cr in N-2-O-2-H2O test gases at 1000 degrees C

机译：试样厚度对1000°C下N-2-O-2-H2O测试气体中Ni25Cr的色度标度的影响

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The isothermal oxidation behaviour of a Ni25Cr model alloy was studied using specimens of different thicknesses at 1000 degrees C in dry and wet N-2-1%O-2. The oxidation mechanisms were evaluated using thermogravimetry and SEM/electron backscatter diffraction analyses of oxide scale cross-sections. The oxidation rates decreased with increasing specimen thickness and increasing water vapour additions in the gas. The findings can be explained by considering the effect of H-defects and in-scale stress state on point defect concentrations in the chromia lattice.

机译：使用不同厚度的样品在干燥和潮湿的N-2-1％O-2中于1000摄氏度下研究了Ni25Cr模型合金的等温氧化行为。使用热重分析法和SEM /电子背散射衍射分析氧化皮横截面来评估氧化机理。氧化速率随样品厚度的增加和气体中水蒸气的添加而降低。可以通过考虑H缺陷和刻度应力状态对氧化铬晶格中点缺陷浓度的影响来解释这些发现。

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来源
《Materials at High Temperatures》 |2015年第2期|共7页
作者
Haensel M.; Turan E.; Shemet V.; Gruener D.; Breuer U.; Simon D.; Gorr B.; Christ H. -J.; Quadakkers W. J.;
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正文语种 eng
中图分类工程材料学;
关键词
Ni25Cr; Chromia growth; Water vapour; Oxygen partial pressure; Point defects; Deformation;

机译：Ni25Cr;铬的生长;水蒸气;氧分压;点缺陷;变形;

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1. Effect of specimen thickness on chromia scaling of Ni25Cr in N-2-O-2-H2O test gases at 1000 degrees C [J] . Haensel M., Turan E., Shemet V., Materials at High Temperatures . 2015,第1a2期

机译：试样厚度对1000°C下N-2-O-2-H2O测试气体中Ni25Cr的色度标度的影响
2. Effect of specimen thickness on the growth rate of chromia scales on Ni-base alloys in high- and low-pO_2 gases [J] . J. Zurek, G.H. Meier, E. Essuman Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2009,第1a2期

机译：标本厚度对高低pO_2气体中镍基合金氧化铬鳞片生长速率的影响
3. Effect of in-situ gas changes on thermally grown chromia scales formed on Ni-25Cr alloy at 1000 degrees C in atmospheres with and without water vapour [J] . Simon D., Gorr B., Haensel M., Materials at High Temperatures . 2015,第1a2期

机译：在有水蒸气和无水蒸气的气氛中，原位气体变化对Ni-25Cr合金在1000摄氏度下形成的热生长氧化铬鳞片的影响
4. Hydrogen uptake and hydrogen profiles in chromia scales formed on Ni25Cr(Mn) in low pO_2 test gases at 1000°C [C] . Michael Hansel, Laura Garcia-Fresnillo, Stefanus Luman Tobing, Forum on new materials . 2011

机译：在低pO_2测试气体中于1000°C在Ni25Cr（Mn）上形成的氧化铬上的氢吸收和氢谱
5. Fabrication of Micron Scale Test Structures for Magneto-Electric Chromia (Cr2O3) Thin Films [D] . ?Saha, Chinmoy Nath 2020

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6. Influence of storing urogenital specimens at -20 degrees C before testing by enzyme amplified immunoassay (IDEIA) to detect Chlamydia trachomatis antigen. [O] . S Bygdeman, C Teichert, A Ahlin, 1989

机译：在用酶扩增免疫法（IDEIA）检测沙眼衣原体抗原之前将尿生殖标本保存在-20摄氏度下的影响。
7. Results of charpy V-notch impact testing of structural steel specimens irradiated at {approximately}30{degrees}C to 1 x 10{sup 16} neutrons/cm{sup 2} in a commercial reactor cavity [O] . Iskander, S. K., Stoller, R. E. 1997

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8. Full-scale investigation of a wing with the leading edge swept back 47.5 degrees and having circular-arc and finite-trailing-edge-thickness ailerons [R] . Lange, Roy H 1949

机译：机翼的全面研究，前缘向后扫47.5度并具有圆弧和有限后缘厚度副翼

Effect of specimen thickness on chromia scaling of Ni25Cr in N-2-O-2-H2O test gases at 1000 degrees C

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