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Wear Behavior of a NiCr/AgVO3 Self-Lubricating Composite
Zhang, Wenting1,2; Du, Lingzhong1; Lan, Ha1; Huang, Chuanbing1; Zhang, Weigang1
2013-08-01
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
Volume26Issue:4Pages:435-440
AbstractNiCr/AgVO3 self-lubricating composite was prepared by powder cold-pressed method with the NiCr alloy as the matrix and 10 wt.% additive of AgVO3 as solid lubricant. The AgVO3 additive powder was synthesized by the precipitation method which exhibits a melting point of 460 degrees C. Microstructure, phase composition and thermal properties of the AgVO3 powder, as well as the composite of NiCr/AgVO3 were analyzed using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and differential scanning calorimeter (DSC). The friction and wear behavior of the specimens from room temperature (R.T.) to 800 degrees C was evaluated using a ball-on-disk tribometer and 3D white light interference (WLI). The results showed that the friction coefficient of this material under atmosphere decreases with temperature increasing from R.T. to 800 degrees C. However, the wear rate firstly increases from R.T. to 200 degrees C, almost remains stable from 200 degrees C to 600 degrees C, and then decreases with further increasing the temperature up to 800 degrees C. It is also found that the prepared composite materials show a better frictional behavior than NiCr alloy over the whole range of temperatures, which is mainly attributed to solid lubrication of AgVO3 exhibiting a lamella-slip structure at temperatures below 460 degrees C and forms liquid-film at elevated temperatures above the melting point.
KeywordSilver Vanadate (Agvo3) Nicr Alloy Solid Lubricant Tribological Property
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS KeywordTRIBOLOGICAL BEHAVIOR ; HIGH-TEMPERATURES ; CRYSTAL-STRUCTURE ; AGVO3 ; AG2V4O11 ; NICKEL ; PHASE
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000322429300012
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13623
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Wenting,Du, Lingzhong,Lan, Ha,et al. Wear Behavior of a NiCr/AgVO3 Self-Lubricating Composite[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2013,26(4):435-440.
APA Zhang, Wenting,Du, Lingzhong,Lan, Ha,Huang, Chuanbing,&Zhang, Weigang.(2013).Wear Behavior of a NiCr/AgVO3 Self-Lubricating Composite.ACTA METALLURGICA SINICA-ENGLISH LETTERS,26(4),435-440.
MLA Zhang, Wenting,et al."Wear Behavior of a NiCr/AgVO3 Self-Lubricating Composite".ACTA METALLURGICA SINICA-ENGLISH LETTERS 26.4(2013):435-440.
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