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An in-situ formed ceramic/alloy/ceramic sandwich barrier to resist elements interdiffusion between NiCrAlY coating and a Ni-based superalloy
Guo, Cean1; Zhou, Feng1; Chen, Minghui2; Wang, Jinlong2; Zhu, Shenglong3; Wang, Fuhui2
Corresponding AuthorChen, Minghui(mhchen@mail.neu.edu.cn)
2021-04-20
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume70Pages:1-11
AbstractNiCrAlY coatings are widely applied on various alloy components to enhance oxidation and/or corrosion resistance at high temperatures. However, elements interdiffusion occurs between them due to composition difference. Although various diffusion barriers (DBs) are reported, this problem is still far from completely solved as most ceramic barriers suffer from poor adherence, while the metallic barriers play a limited role. In this study, NiCrAlY coating was deposited onto a second-generation single-crystal superalloy by arc ion plating. A novel simple method is provided to address elements interdiffusion. By pre-oxidation at a moderate temperature, a thin scale of Ni(Co)O forms at the alloy surface. It transforms to be an alumina/NiCoCr alloy/alumina sandwich by an in-situ reaction with the overlaying NiCrAlY coating and the alloy substrate at high service temperatures, which offers good barrier ability in conjunction with strong adhesion. In the presence of such an alumina/alloy/alumina DB, the NiCrAlY coating provides high resistance to oxidation and scale spallation for the alloy substrate. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordSuperalloys NiCrAlY coating High-temperature oxidation Elements interdiffusion Diffusion barrier
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province of China ; Ministry of Industry and Information Technology Project
DOI10.1016/j.jmst.2020.09.002
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51671053] ; Natural Science Foundation of Liaoning Province of China[2019-ZD-0264] ; Ministry of Industry and Information Technology Project[MJ-2017-J-99]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000621862300001
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/161193
Collection中国科学院金属研究所
Corresponding AuthorChen, Minghui
Affiliation1.Shenyang Ligong Univ, Sch Equipment Engn, Shenyang 110159, Peoples R China
2.Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Guo, Cean,Zhou, Feng,Chen, Minghui,et al. An in-situ formed ceramic/alloy/ceramic sandwich barrier to resist elements interdiffusion between NiCrAlY coating and a Ni-based superalloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,70:1-11.
APA Guo, Cean,Zhou, Feng,Chen, Minghui,Wang, Jinlong,Zhu, Shenglong,&Wang, Fuhui.(2021).An in-situ formed ceramic/alloy/ceramic sandwich barrier to resist elements interdiffusion between NiCrAlY coating and a Ni-based superalloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,70,1-11.
MLA Guo, Cean,et al."An in-situ formed ceramic/alloy/ceramic sandwich barrier to resist elements interdiffusion between NiCrAlY coating and a Ni-based superalloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 70(2021):1-11.
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