Oxidation of duplex coatings with different thickness ratio of the inner nanocrystalline layer to the outer NiCrAlY one

doi:10.1016/j.corsci.2018.08.029

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	Oxidation of duplex coatings with different thickness ratio of the inner nanocrystalline layer to the outer NiCrAlY one
	Yang, LL ; Chen, MH ; Wang, JL ; Bao, ZB ; Zhu, SL ; Wang, FH
刊名	CORROSION SCIENCE
	2018-10-01
卷号	143 页码:136-147
关键词	Superalloys Metal coatings SEM TEM Oxidation
ISSN号	0010-938X
DOI	10.1016/j.corsci.2018.08.029
英文摘要	Oxidation behavior of three duplex coatings with different thickness ratio of the inner nanocrystalline layer to the outer NiCrAlY one (1:2, 1:1 and 2:1) on N5 single-crystal superalloy is investigated. Results indicate that Ta in the inner layer can transport through the NiCrAlY one to the outer surface and to be oxidized there, which accelerates oxidation. Meanwhile, Cr and Al will diffuse from the NiCrAlY layer through the inner one to the alloy substrate, resulting in precipitation of TCP phases. Layer thickness ratio plays an important role in oxidation of the duplex coatings by affecting such elements interdiffusion.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000447570500015
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79917]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230000, Anhui, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Yang, LL,Chen, MH,Wang, JL,et al. Oxidation of duplex coatings with different thickness ratio of the inner nanocrystalline layer to the outer NiCrAlY one[J]. CORROSION SCIENCE,2018,143:136-147.
APA	Yang, LL,Chen, MH,Wang, JL,Bao, ZB,Zhu, SL,&Wang, FH.(2018).Oxidation of duplex coatings with different thickness ratio of the inner nanocrystalline layer to the outer NiCrAlY one.CORROSION SCIENCE,143,136-147.
MLA	Yang, LL,et al."Oxidation of duplex coatings with different thickness ratio of the inner nanocrystalline layer to the outer NiCrAlY one".CORROSION SCIENCE 143(2018):136-147.