Temperature Effect on Early Oxidation Behavior of NiCoCrAlY Coatings: Microstructure and Phase Transformation

doi:10.1007/s40195-021-01310-5

IMR OpenIR

	Temperature Effect on Early Oxidation Behavior of NiCoCrAlY Coatings: Microstructure and Phase Transformation
	Ullah, A.1,2; Khan, A.1,3; Bao, Z. B.2; Yang, Y. F.4; Xu, M. M.2; Zhu, S. L.2; Wang, F. H.5
通讯作者	Bao, Z. B.(zbbao@imr.ac.cn) ; Yang, Y. F.(yfyang@jnu.edu.cn)
	2021-09-01
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	10
摘要	Initial oxidation behavior of NiCoCrAlY coating prepared by arc-ion plating has been studied in air at 900, 1000 and 1100 degrees C. The results showed that phase transformation from transient theta-Al2O3 to alpha-Al2O3 was highly related to the temperature and oxidation time. The oxide scale in the initial stage was mainly composed of theta-Al2O3 at 900 degrees C. Instead, more amount of alpha-Al2O3 emerged out with increasing oxidation temperature. The elemental distribution after oxidation confirmed that faster chromium diffusion to the oxide scale played an important role in the speedy transformation from theta-Al2O3 to alpha-Al2O3. Y segregation at scale/coating interface resulted in less cavity formation and hence improved the oxide scale adherence.
关键词	MCrAlY coating Phase transformation Isothermal oxidation Temperature effect
资助者	R&D Program in Key Fields of Guangdong Province ; National Natural Science Foundation of China ; National Engineering Laboratory for Marine and Ocean Engineering Power System-Laboratory for Ocean Engineering Gas Turbine
DOI	10.1007/s40195-021-01310-5
收录类别	SCI
语种	英语
资助项目	R&D Program in Key Fields of Guangdong Province[2019B010936001] ; National Natural Science Foundation of China[51671202] ; National Engineering Laboratory for Marine and Ocean Engineering Power System-Laboratory for Ocean Engineering Gas Turbine
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000691924200003
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/166878
专题	中国科学院金属研究所
通讯作者	Bao, Z. B.; Yang, Y. F.
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Anhui Univ Technol, Key Lab Green Fabricat & Surface Technol Adv Met, Minist Educ, Sch Mat Sci & Engn, Maanshan 243000, Peoples R China 4.Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Peoples R China 5.Northeastern Univ, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Ullah, A.,Khan, A.,Bao, Z. B.,et al. Temperature Effect on Early Oxidation Behavior of NiCoCrAlY Coatings: Microstructure and Phase Transformation[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:10.
APA	Ullah, A..,Khan, A..,Bao, Z. B..,Yang, Y. F..,Xu, M. M..,...&Wang, F. H..(2021).Temperature Effect on Early Oxidation Behavior of NiCoCrAlY Coatings: Microstructure and Phase Transformation.ACTA METALLURGICA SINICA-ENGLISH LETTERS,10.
MLA	Ullah, A.,et al."Temperature Effect on Early Oxidation Behavior of NiCoCrAlY Coatings: Microstructure and Phase Transformation".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):10.