Oxygen changes crack modes of Ni-based single crystal superalloy

Li, Xueqiao; Liu, Yinong; Zhao, Yongsheng; Chen, Yanhui; Li, Ang; Zhang, Jianfei; Zhai, Yadi; Li, Zhipeng; Ma, Dongfeng; Li, Xiaochen; Zhang, Qing; Yang, Xiaomeng; Long, Haibo; Mao, Shengcheng; Zhang, Ze; Han, Xiao

doi:10.1080/21663831.2021.1993367

Cited by 9 publications

(3 citation statements)

References 34 publications

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“…The abovementioned image-based quantification was first realized on a quantified MEMS chip developed previously by our group [ 9 ]. A clamped beam that is often adopted by MEMS mechanical chips [ 27 ] was used here.…”

Section: Methodsmentioning

confidence: 99%

“…In situ TEM mechanical stages based on micro-electromechanical systems (MEMS) [ 1 ] have drawn more and more attention due to their versatile loading modes [ 2 ], flexible sample preparation methods [ 3 , 4 ], and high compatibility with TEM functions (e.g., double-tilt) [ 5 , 6 , 7 ]. MEMS-based in situ TEM mechanical stages have yielded numerous excellent results in recent years [ 3 , 8 , 9 , 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Novel Method for Image-Based Quantified In Situ Transmission Electron Microscope Nanoindentation with High Spatial and Temporal Resolutions

Zhang,

Yang,

et al. 2023

Micromachines

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In situ TEM mechanical stages based on micro-electromechanical systems (MEMS) have developed rapidly over recent decades. However, image-based quantification of MEMS mechanical stages suffers from the trade-off between spatial and temporal resolutions. Here, by taking in situ TEM nanoindentation as an example, we developed a novel method for image-based quantified in situ TEM mechanical tests with both high spatial and temporal resolutions. A reference beam was introduced to the close vicinity of the indenter–sample region. By arranging the indenter, the sample, and the reference beam in a micron-sized area, the indentation depth and load can be directly and dynamically acquired from the relative motion of markers on the three components, while observing the indentation process at a relatively high magnification. No alteration of viewing area is involved throughout the process. Therefore, no deformation events will be missed, and the collection rate of quantification data can be raised significantly.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel Method for Image-Based Quantified In Situ Transmission Electron Microscope Nanoindentation with High Spatial and Temporal Resolutions

Zhang,

Yang,

et al. 2023

Micromachines

Self Cite

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“…When the coating is damaged, the base superalloy will be exposed to oxygen-containing atmosphere. Due to the extremely harsh service environment of IGTs, such as the high temperature, high thermal shocking and high cycling load, the oxidation of superalloy can result in initiation and propagation of cracks in single-crystal blades, significantly reducing the service life of IGTs [8][9][10] . Therefore, it is imperative to thoroughly investigate the intrinsic behavior of base single-crystal superalloy in oxidizing atmosphere.…”

Section: Oxidation Behavior Of 4774dd1 Ni-based Single-crystal Supera...mentioning

confidence: 99%

Oxidation behavior of 4774DD1 Ni-based single-crystal superalloy at 980 °C in air

Fang,

Li,

Yang

et al. 2024

China Foundry

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Ni-based single-crystal superalloys have been extensively utilized in aero-engines for the production of hot-end components due to their excellent high-temperature mechanical properties [1][2][3][4] . In the pursuit of heightened thermal efficiency, single-crystal superalloys are progressively being introduced into industrial gas turbines (IGTs) [5][6][7] to fabricate single-crystal blades, thereby enhancing the turbine front-end temperature. Although the blades are generally used in coated condition and the thermal barrier coatings can improve the oxidation

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Effect of Si content on the surface high-temperature oxidation mechanism in Ni5Y-containing NiAIYSi alloys

Wang

Zhou

et al. 2023

Corrosion Science

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Oxygen changes crack modes of Ni-based single crystal superalloy

Cited by 9 publications

References 34 publications

Novel Method for Image-Based Quantified In Situ Transmission Electron Microscope Nanoindentation with High Spatial and Temporal Resolutions

Novel Method for Image-Based Quantified In Situ Transmission Electron Microscope Nanoindentation with High Spatial and Temporal Resolutions

Oxidation behavior of 4774DD1 Ni-based single-crystal superalloy at 980 °C in air

Effect of Si content on the surface high-temperature oxidation mechanism in Ni5Y-containing NiAIYSi alloys

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