Unveiling oil-additive/surface hierarchy at real ring-liner contact
Wan, Shanhong1; Xia, Yana1; Pham, Sang T.1; Anh Kiet Tieu1; Zhu, Hongtao1; Li, Qinglin2
2019-06
Source PublicationSURFACES AND INTERFACES
ISSN2468-0230
Volume15Pages:1-10
AbstractZinc-dialkyldithiophosphate (ZDDP) additive in oil has been extensively reported to form a protective tribofilm between the moving components of engine for preventing wear. In this study, surface and interface characterizations were conducted on real piston ring/cylinder liner contacts, the interacting mechanism between oil-additive and solid surfaces under realistic mechanical and thermal conditions was predicted according to the identification of the chemical composition and structure of the tribofilm. The results demonstrate the interesting laminated hierarchy of tribofilm. This tribofilm is composed mainly of dense carbon precipitation at the top region and a thinner polyphosphate intermediate layer in contact with deformed iron oxide substrate on the cylinder liner. The depletion of polyphosphate compounds and competitive growth of solid carbon in term of lubricant's degradation was speculated. These significant findings help manufacturer to understand possible tribochemical processes occurring in the real tribosystem from the practical view, and in particular inspire researchers to develop the new strategy to improve capability and efficiency of oil-additive at sliding contacts.
KeywordPiston ring-cylinder liner assembly Tribochemistry Tribofilm Surface/interface Characterization
DOI10.1016/j.surfin.2019.01.009
Indexed BySCI
Language英语
Funding ProjectAustralian Research Council [ARC] Discovery Project (DP)[150103718] ; National Natural Science Foundation of China[51561021] ; Australian Research Council (ARC)[JSM-6490LA]
WOS Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS IDWOS:000466559600001
PublisherELSEVIER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/76168
Collection省部共建有色金属先进加工与再利用国家重点实验室
材料科学与工程学院
Corresponding AuthorAnh Kiet Tieu; Li, Qinglin
Affiliation1.Univ Wollongong, Fac Engn & Informat Sci, Wollongong, NSW 2522, Australia
2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730000, Gansu, Peoples R China
Corresponding Author AffilicationState Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
Recommended Citation
GB/T 7714
Wan, Shanhong,Xia, Yana,Pham, Sang T.,et al. Unveiling oil-additive/surface hierarchy at real ring-liner contact[J]. SURFACES AND INTERFACES,2019,15:1-10.
APA Wan, Shanhong,Xia, Yana,Pham, Sang T.,Anh Kiet Tieu,Zhu, Hongtao,&Li, Qinglin.(2019).Unveiling oil-additive/surface hierarchy at real ring-liner contact.SURFACES AND INTERFACES,15,1-10.
MLA Wan, Shanhong,et al."Unveiling oil-additive/surface hierarchy at real ring-liner contact".SURFACES AND INTERFACES 15(2019):1-10.
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