Preparation and Performance of a Novel Wear-Resistant and High Temperature Oxidation-Resistant NiCrAlSiC Composite Coating

doi:10.11900/0412.1961.2019.00034

CORC > 金属研究所 > 中国科学院金属研究所

	Preparation and Performance of a Novel Wear-Resistant and High Temperature Oxidation-Resistant NiCrAlSiC Composite Coating
	Zhao Mingyu 2; Zhen Huijuan 1,3; Dong Zhihong 3; Yang Xiuying 2; Peng Xiao 4
刊名	ACTA METALLURGICA SINICA
	2019-07-11
卷号	55 期号:7 页码:902-910
关键词	NiCrAl composite coating high temperature oxidation friction and wear electrophoretic deposition electrodeposition
ISSN号	0412-1961
DOI	10.11900/0412.1961.2019.00034
通讯作者	Zhen Huijuan(hjzhen13s@imr.ac.cn) ; Yang Xiuying(xyyang0821@163.com)
英文摘要	MCrAl (M=Ni, Co, or their combinations) coatings have been widely used as high temperature oxidation protection coatings on turbine blades, as they can thermally grow stable, dense and well adherent Al2O3 protective scales. Due to the particulate nature of the exhaust,MCrAl coatings often fail owing to severe high-temperature wear. To improve the anti-wear resistance of the MCrAl coatings, NiCrAlSiC composite coatings were designed and fabricated by the combination of electrophoretic deposition (EPD) and electrodeposition (ED). The compositions, morphologies and structures of the as-deposited composite coatings were characterized by XRD, SEM, EPMA and TEM. A Ni7.4Cr6.2Al14.3SiC (mass fraction, %) coating, as well as a contrast SiC-free Ni7.2Cr6.2Al coating, was prepared. No cracks or micro pores were found either at the coating/substrate interface or in the coating, and elements distributed uniformly in the coating. Compared to the SiC-free coating, oxide scale on the NiCrAlSiC coating transformed from a three-layered structure (NiO, NiAl2O4 and Al2O3) to a thinner two-layered structure (NiAl2O4 and Al2O3), showing better high temperature oxidation resistance. And microhardness of the NiCrAlSiC coating increased 26%, together with the wear rate reduced 52%. Wear mechanism of the NiCrAl coating was abrasive wear, while that of the NiCrAlSiC coating switched to adhesive wear. These results indicate that the addition of SiC improves both high temperature oxidation resistance and wear resistance of the NiCrAl composite coating obviously.
资助项目	Natural Science Foundation of Liaoning Province[20170540666]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000471268000010
资助机构	Natural Science Foundation of Liaoning Province
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/134175]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhen Huijuan; Yang Xiuying
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 2.Shenyang Inst Technol, Fushun 113122, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China 4.Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Zhao Mingyu,Zhen Huijuan,Dong Zhihong,et al. Preparation and Performance of a Novel Wear-Resistant and High Temperature Oxidation-Resistant NiCrAlSiC Composite Coating[J]. ACTA METALLURGICA SINICA,2019,55(7):902-910.
APA	Zhao Mingyu,Zhen Huijuan,Dong Zhihong,Yang Xiuying,&Peng Xiao.(2019).Preparation and Performance of a Novel Wear-Resistant and High Temperature Oxidation-Resistant NiCrAlSiC Composite Coating.ACTA METALLURGICA SINICA,55(7),902-910.
MLA	Zhao Mingyu,et al."Preparation and Performance of a Novel Wear-Resistant and High Temperature Oxidation-Resistant NiCrAlSiC Composite Coating".ACTA METALLURGICA SINICA 55.7(2019):902-910.