Isothermal oxidation behavior and microstructure change of a gradient low-expansion coating for superalloys

doi:10.1016/j.corsci.2018.11.004

IMR OpenIR

	Isothermal oxidation behavior and microstructure change of a gradient low-expansion coating for superalloys
	Ren, Pan 1; Zhu, Shenglong 2; Wang, Fuhui 3
通讯作者	Ren, Pan(renp@foxmail.com)
	2019-02-01
发表期刊	CORROSION SCIENCE
ISSN	0010-938X
卷号	147 页码:182-191
摘要	An AlN gradient-doped Ni + CrAlYSiHfN coating was prepared on superalloys by magnetron sputtering. The as-deposited coating comprised of three sub-layers. AlN phase shows a gradient distribution in coating after annealing, and AlN reaches 33 vol.% at the top of the coating. Compared with NiCrAlY coating, the gradient coating reduced the CTEs mismatch between coating and alpha-Al2O3 by 41%, and it exhibited a much lower oxidation rate in oxidation test. A thin Cr23C6 diffusion barrier formed at the coating-substrate interface. In summary, the gradient coating effectively reduces the damage of thermal stress on oxide scale, and suppressed the interdiffusion between coating and substrate.
关键词	Oxidation Gradient coating High-temperature protection Diffusion barrier
资助者	National Nature Science Foundation of China ; Guangdong Provincial Natural Science Foundation for Doctoral Research Project ; Fundamental Research Funds for the Central Universities ; Scientific Research Funds for the Talents and Innovation Foundation of Jinan University, Guangzhou, China
DOI	10.1016/j.corsci.2018.11.004
收录类别	SCI
语种	英语
资助项目	National Nature Science Foundation of China ; Guangdong Provincial Natural Science Foundation for Doctoral Research Project[2017A030310473] ; Fundamental Research Funds for the Central Universities[21617339] ; Scientific Research Funds for the Talents and Innovation Foundation of Jinan University, Guangzhou, China
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000456902100016
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：11[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/321006/131405
专题	中国科学院金属研究所
通讯作者	Ren, Pan
作者单位	1.Jinan Univ, Inst Adv Wear & Corros Resistant & Funct Mat, Guangzhou 510632, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.Northeastern Univ, Shenyang Natl Lab Mat Sci, Corros & Protect Div, Shenyang, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Ren, Pan,Zhu, Shenglong,Wang, Fuhui. Isothermal oxidation behavior and microstructure change of a gradient low-expansion coating for superalloys[J]. CORROSION SCIENCE,2019,147:182-191.
APA	Ren, Pan,Zhu, Shenglong,&Wang, Fuhui.(2019).Isothermal oxidation behavior and microstructure change of a gradient low-expansion coating for superalloys.CORROSION SCIENCE,147,182-191.
MLA	Ren, Pan,et al."Isothermal oxidation behavior and microstructure change of a gradient low-expansion coating for superalloys".CORROSION SCIENCE 147(2019):182-191.