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Preparation and Performance of a Novel Wear-Resistant and High Temperature Oxidation-Resistant NiCrAlSiC Composite Coating
Zhao Mingyu1; Zhen Huijuan2,3; Dong Zhihong2; Yang Xiuying1; Peng Xiao4
Corresponding AuthorZhen Huijuan(hjzhen13s@imr.ac.cn) ; Yang Xiuying(xyyang0821@163.com)
2019-07-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume55Issue:7Pages:902-910
AbstractMCrAl (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.
KeywordNiCrAl composite coating high temperature oxidation friction and wear electrophoretic deposition electrodeposition
Funding OrganizationNatural Science Foundation of Liaoning Province
DOI10.11900/0412.1961.2019.00034
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of Liaoning Province[20170540666]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000471268000010
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/134176
Collection中国科学院金属研究所
Corresponding AuthorZhen Huijuan; Yang Xiuying
Affiliation1.Shenyang Inst Technol, Fushun 113122, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Liaoning, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
4.Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China
Recommended Citation
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.
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