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Effect of vacuum annealing on initial oxidation behavior and alumina transition of NiCoCrAlY coatings
Ullah, A.1,2; Khan, A.1,2; Bao, Z. B.2,3; Yu, C. T.2,3; Zhu, S. L.2,3; Wang, F. H.4
Corresponding AuthorBao, Z. B.(zbbao@imr.ac.cn)
2020-12-25
Source PublicationSURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
Volume404Pages:9
AbstractNiCoCrAlY coatings were prepared using arc-ion-plating on a second generation Ni-base single crystal superalloy, in which some of them underwent vacuum annealing treatment while the others did not. Early oxidation behavior of the two coatings, including phase pattern and morphological evolution of oxide scale during the short term oxidation, has been studied in static air at 1000 degrees C. The results showed that the vacuum treatment was not only efficient in inhibiting the cavity formation, but also significantly increased the adhesion between oxide scale and coating. Compared with those without vacuum annealing, the NiCoCrAlY coatings with vacuum treatment exhibited slower phase transformation from metastable theta-Al2O3 to stable alpha-Al2O3. Initial oxidation behavior of as-received and annealed coatings, especially the effect of vacuum annealing on morphology evolution and adhesion of oxide scale, are particularly discussed.
KeywordMCrAlY coatings SEM Raman spectroscopy Phase transformation Oxidation
Funding OrganizationR&D Program in Key Fields of Guangdong Province ; National Natural Science Foundation of China ; Liaoning BaiQianWan Talents Program
DOI10.1016/j.surfcoat.2020.126441
Indexed BySCI
Language英语
Funding ProjectR&D Program in Key Fields of Guangdong Province[2019B010936001] ; National Natural Science Foundation of China[51301184] ; Liaoning BaiQianWan Talents Program
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS IDWOS:000597889400009
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/158790
Collection中国科学院金属研究所
Corresponding AuthorBao, Z. B.
Affiliation1.Univ Chinese Acad Sci, Yuquan Rd 19, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Shi Changru Innovat Ctr Adv Mat, Inst Met Res, Wencui Rd 62, Shenyang 110016, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Wenhua Rd 72, Shenyang 110016, Peoples R China
4.Northeastern Univ, Shenyang Natl Lab Mat Sci, Wenhua Rd 3, Shenyang 110819, Peoples R China
Recommended Citation
GB/T 7714
Ullah, A.,Khan, A.,Bao, Z. B.,et al. Effect of vacuum annealing on initial oxidation behavior and alumina transition of NiCoCrAlY coatings[J]. SURFACE & COATINGS TECHNOLOGY,2020,404:9.
APA Ullah, A.,Khan, A.,Bao, Z. B.,Yu, C. T.,Zhu, S. L.,&Wang, F. H..(2020).Effect of vacuum annealing on initial oxidation behavior and alumina transition of NiCoCrAlY coatings.SURFACE & COATINGS TECHNOLOGY,404,9.
MLA Ullah, A.,et al."Effect of vacuum annealing on initial oxidation behavior and alumina transition of NiCoCrAlY coatings".SURFACE & COATINGS TECHNOLOGY 404(2020):9.
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