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The inhibiting effe...
The inhibiting effect of Re-rich layer on the interdiffusion between NiAl and Ni3Al-based superalloy and its degradation
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- Li, Jingchen (author)
- Beihang Univ BUAA, Peoples R China
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- Wu, Yuting (author)
- Beihang Hangzhou Innovat Inst Yuhang, Peoples R China
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- Liu, Liang (author)
- Beihang Univ BUAA, Peoples R China
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- Peng, Ru (author)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Xu, Jinghao (author)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- He, Jian (author)
- Beihang Univ BUAA, Peoples R China; Beihang Univ BUAA, Peoples R China; Beihang Hangzhou Innovat Inst Yuhang, Peoples R China
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- Guo, Hongbo (author)
- Beihang Univ BUAA, Peoples R China; Beihang Univ BUAA, Peoples R China; Beihang Univ BUAA, Peoples R China
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(creator_code:org_t)
- ELSEVIER SCIENCE SA, 2023
- 2023
- English.
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In: Journal of Alloys and Compounds. - : ELSEVIER SCIENCE SA. - 0925-8388 .- 1873-4669. ; 957
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- A NiAl alloy/ Ni3Al-based superalloy diffusion couple with an electroplated NiRe layer was prepared. High-temperature interdiffusion performance of the diffusion couple was analyzed at 1100 degrees C under argon at-mosphere and compared with that of the blank group without NiRe layer. A Re-based diffusion barrier formed during the diffusion. The microstructural instability of the superalloy was found to be alleviated by the Re-based diffusion barrier, and the detailed microstructure of the diffusion barrier was identified to be Re-rich a phases and Mo-rich << phase detected by TEM. The chemical diffusion coefficient of Al was reduced by about two orders of magnitude with the modification of the Re-based diffusion barrier. A microstructural degradation of the Re-based barrier layer was observed after high-temperature diffusion of 300 h, which can be attributed to the internal diffusion of Mo.(c) 2023 Elsevier B.V. All rights reserved.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- Superalloy; Diffusion barrier; Diffusion couple; Interdiffusion; Interfaces
Publication and Content Type
- ref (subject category)
- art (subject category)
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