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Effects of solid lubricant content on the microstructure and properties of NiCr/Cr3C2-BaF2 center dot CaF2 composite coatings
Huang, Chuanbing1,2; Du, Lingzhong1; Zhang, Weigang1; Zhang, WG
2009-06-24
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume479Issue:1-2Pages:777-784
AbstractNiCr/Cr3C2 and NiCr/BaF2 center dot CaF2 composite powders were prepared with pressurized hydrogen reduction and solid state alloying processes. The NiCr/Cr3C2-BaF2 center dot CaF2 coatings with different contents of BaF2 center dot CaF2 eutectic were fabricated by plasma spray technology using the synthesised powders. The microstructure. mechanical and tribological properties of the coatings were systematically investigated. The results show that the microhardness and tensile strength of the coatings decrease with the increase of BaF2 center dot CaF2 eutectic content. The coating containing 10 wt.% eutectic shows a maximum tribological properties at elevated temperatures, depending on the physical and chemical match between the solid lubricant and the matrix materials as well as fine, dense microstructure of this composite coating, and partially attributed to the protection of NiCr layer of the composite powders which decreased the oxidation, decarburization and ablation of Cr3C2. With further increasing of BaF2 center dot CaF2 content, the wear rates of NiCr/Cr3C2-BaF2 center dot CaF2 coatings increase rapidly, due to the quantitive degradation of mechanical properties. (C) 2009 Elsevier B.V. All rights reserved.
KeywordCoatings Scanning Electron Microscopy Microstructure Mechanical Properties Friction And Wear
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jallcom.2009.01.062
Indexed BySCI
Language英语
WOS KeywordHIGH-TEMPERATURE ; WEAR CHARACTERISTICS ; FRICTION ; SURFACE ; POWDER
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000267063300167
Citation statistics
Cited Times:44[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6646
Collection多相复杂系统国家重点实验室
Corresponding AuthorZhang, WG
Affiliation1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Huang, Chuanbing,Du, Lingzhong,Zhang, Weigang,et al. Effects of solid lubricant content on the microstructure and properties of NiCr/Cr3C2-BaF2 center dot CaF2 composite coatings[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2009,479(1-2):777-784.
APA Huang, Chuanbing,Du, Lingzhong,Zhang, Weigang,&Zhang, WG.(2009).Effects of solid lubricant content on the microstructure and properties of NiCr/Cr3C2-BaF2 center dot CaF2 composite coatings.JOURNAL OF ALLOYS AND COMPOUNDS,479(1-2),777-784.
MLA Huang, Chuanbing,et al."Effects of solid lubricant content on the microstructure and properties of NiCr/Cr3C2-BaF2 center dot CaF2 composite coatings".JOURNAL OF ALLOYS AND COMPOUNDS 479.1-2(2009):777-784.
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