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Preparation and wear performance of NiCr/Cr3C2-NiCr/hBN plasma sprayed composite coating
Du, Lingzhong1; Huang, Chuanbing1; Zhang, Weigang1; Li, Tiegang2; Liu, Wei1; Du, LZ
2011-03-15
Source PublicationSURFACE & COATINGS TECHNOLOGY
ISSN0257-8972
Volume205Issue:12Pages:3722-3728
AbstractNiCr clad hexagonal BN powder (NiCr/hBN) was added to NiCr/Cr3C2 feedstock to improve the tribological properties of chromium carbide nichrome coating. The microstructure, flowability and apparent density of the composite powder, as well as the structure and mechanical properties of the plasma sprayed coating were characterized. The friction and wear behavior of the NiCr/Cr3C2-NiCr/hBN coating from ambient temperature up to 800 degrees C was evaluated on a ball-on-disk wear tester and compared with that of NiCr/Cr3C2 coating and NiCr/Cr3C2-NiCr/BaF2-CaF2 coating. The results show that NiCr cladding can reduce the decarburization of Cr3C2 and oxidation of hBN during the thermal spray. The main wear mechanisms of the NiCr/Cr3C2-NiCr/hBN composite coating are ploughing and adhesive wear. Layered hexagonal BN particle reduce the direct contact and severe adhesion between friction pairs, thus decreasing the friction coefficient. The NiCr/Cr3C2-NiCr/hBN composite coating shows a promising application in the high temperature environment with the request of both wear resistance and friction reduction. (C) 2011 Elsevier B.V. All rights reserved.
KeywordNicr/cr3c2 Solid Lubricant Hbn Sliding Wear Thermal Spray Coating
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1016/j.surfcoat.2011.01.031
Indexed BySCI
Language英语
WOS KeywordNI-BASED SUPERALLOY ; CR3C2-NICR COATINGS ; BORON-NITRIDE ; TEMPERATURE ; BEHAVIOR ; MICROSTRUCTURE ; APS
WOS Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Coatings & Films ; Physics, Applied
WOS IDWOS:000288571600026
Citation statistics
Cited Times:47[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5075
Collection多相复杂系统国家重点实验室
Corresponding AuthorDu, LZ
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Toronto, Ctr Adv Coating Technol, Toronto, ON M5S 3G8, Canada
Recommended Citation
GB/T 7714
Du, Lingzhong,Huang, Chuanbing,Zhang, Weigang,et al. Preparation and wear performance of NiCr/Cr3C2-NiCr/hBN plasma sprayed composite coating[J]. SURFACE & COATINGS TECHNOLOGY,2011,205(12):3722-3728.
APA Du, Lingzhong,Huang, Chuanbing,Zhang, Weigang,Li, Tiegang,Liu, Wei,&Du, LZ.(2011).Preparation and wear performance of NiCr/Cr3C2-NiCr/hBN plasma sprayed composite coating.SURFACE & COATINGS TECHNOLOGY,205(12),3722-3728.
MLA Du, Lingzhong,et al."Preparation and wear performance of NiCr/Cr3C2-NiCr/hBN plasma sprayed composite coating".SURFACE & COATINGS TECHNOLOGY 205.12(2011):3722-3728.
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