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Oxide formation on two-phase Ni-3Cr-20Al and Ni-10Cr-11Al-8Ti microcrystalline coatings
Chen, GF
Corresponding AuthorChen, GF()
2002-08-22
Source PublicationSURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
Volume157Issue:2-3Pages:214-220
AbstractDue to the metastable state in the as-sputtered Ni-3Cr-20Al and Ni-10Cr-11Al-8Ti nanocrystalline coatings, gamma' phase precipitation will occur during oxidation and then produce a gamma and gamma' two-phase microstructure. In this paper, as-sputtered Ni-3Cr-20Al and Ni-10Cr-11Al-8Ti nanocrystalline coatings were initially oxidized at 1000 degreesC in air for 200 h and 90 min, respectively in order to produce a two-phase microstructure in these two coatings. And then the formed oxide scales were removed. The oxide formation on the Ni-3Cr-20Al and Ni-10Cr-11Al-8Ti coating surface with a gamma and gamma' two-phase microstructure has been examined after 200 It oxidation at 1000 degreesC in air. Compared with the as-sputtered coating, the oxide formation on the Ni-10Cr-11Al-8Ti two-phase coating surface was not altered, both TiO2 dispersions on Al2O3 scales were formed. Whereas the oxide dispersions on AI,03 scale formed on the Ni-3Cr-20Al coating has changed from NiAl2O4 on the as-sputtered single phase coating to NiO on two-phase coating surface. The formation mechanism is discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
Keywordoxidation microcrystalline coating two-phase structure Ni-3Cr-20Al Ni-10Cr-11Al-8Ti
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS IDWOS:000176940200015
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/115484
Collection中国科学院金属研究所
Corresponding AuthorChen, GF
AffiliationAcad Sinica, Met Res Inst, SKLCPM, Shenyang 11016, Peoples R China
Recommended Citation
GB/T 7714
Chen, GF. Oxide formation on two-phase Ni-3Cr-20Al and Ni-10Cr-11Al-8Ti microcrystalline coatings[J]. SURFACE & COATINGS TECHNOLOGY,2002,157(2-3):214-220.
APA Chen, GF.(2002).Oxide formation on two-phase Ni-3Cr-20Al and Ni-10Cr-11Al-8Ti microcrystalline coatings.SURFACE & COATINGS TECHNOLOGY,157(2-3),214-220.
MLA Chen, GF."Oxide formation on two-phase Ni-3Cr-20Al and Ni-10Cr-11Al-8Ti microcrystalline coatings".SURFACE & COATINGS TECHNOLOGY 157.2-3(2002):214-220.
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