An investigation on the lubrication mechanism of MoS2 nanoparticles in unidirectional and reciprocating sliding point contact: The flow pattern effect around contact area

Hongxing Wu; Xing Li; Xingliang He; Jie Lu; Liping Wang; Bin Zhou; Guangneng Dong

doi:10.1016/j.triboint.2018.02.013

An investigation on the lubrication mechanism of MoS₂ nanoparticles in unidirectional and reciprocating sliding point contact: The flow pattern effect around contact area

Hongxing Wu
, Xing Li
, Xingliang He
, Jie Lu
, Liping Wang
, Bin Zhou
, Guangneng Dong

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

The goal of the work is to investigate the flow pattern of MoS₂ nanoparticles, which influences the lubrication properties of the lubricant. The tribological behavior of MoS₂ nanoparticles was studied in unidirectional or reciprocating ball-on-disk sliding tribometer. Friction reduction of 0.25 wt% MoS₂ nanoparticles in reciprocating mode reached 53.1% compared with that of base oil; whereas the friction coefficient of 0.25 wt% MoS₂ nanoparticles in unidirectional mode was similar with that of base lubricant (about 0.18). Flow pattern results of MoS₂ nanoparticles around contact area show that particles piled up heavily in the inlet of contact zone in unidirectional mode, leading to starved lubrication. However, loose net-like aggregations were formed in reciprocating mode, benefiting to reduce friction and wear.

Original language	English
Pages (from-to)	38-45
Number of pages	8
Journal	Tribology International
Volume	122
DOIs	https://doi.org/10.1016/j.triboint.2018.02.013
State	Published - Jun 2018

Keywords

Flow pattern
Lubrication mechanism
MoS nanoparticles
Sliding mode

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10.1016/j.triboint.2018.02.013

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title = "An investigation on the lubrication mechanism of MoS2 nanoparticles in unidirectional and reciprocating sliding point contact: The flow pattern effect around contact area",

abstract = "The goal of the work is to investigate the flow pattern of MoS2 nanoparticles, which influences the lubrication properties of the lubricant. The tribological behavior of MoS2 nanoparticles was studied in unidirectional or reciprocating ball-on-disk sliding tribometer. Friction reduction of 0.25 wt\% MoS2 nanoparticles in reciprocating mode reached 53.1\% compared with that of base oil; whereas the friction coefficient of 0.25 wt\% MoS2 nanoparticles in unidirectional mode was similar with that of base lubricant (about 0.18). Flow pattern results of MoS2 nanoparticles around contact area show that particles piled up heavily in the inlet of contact zone in unidirectional mode, leading to starved lubrication. However, loose net-like aggregations were formed in reciprocating mode, benefiting to reduce friction and wear.",

keywords = "Flow pattern, Lubrication mechanism, MoS nanoparticles, Sliding mode",

author = "Hongxing Wu and Xing Li and Xingliang He and Jie Lu and Liping Wang and Bin Zhou and Guangneng Dong",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = jun,

doi = "10.1016/j.triboint.2018.02.013",

language = "英语",

volume = "122",

pages = "38--45",

journal = "Tribology International",

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T1 - An investigation on the lubrication mechanism of MoS2 nanoparticles in unidirectional and reciprocating sliding point contact

T2 - The flow pattern effect around contact area

AU - Wu, Hongxing

AU - Li, Xing

AU - He, Xingliang

AU - Lu, Jie

AU - Wang, Liping

AU - Zhou, Bin

AU - Dong, Guangneng

PY - 2018/6

Y1 - 2018/6

N2 - The goal of the work is to investigate the flow pattern of MoS2 nanoparticles, which influences the lubrication properties of the lubricant. The tribological behavior of MoS2 nanoparticles was studied in unidirectional or reciprocating ball-on-disk sliding tribometer. Friction reduction of 0.25 wt% MoS2 nanoparticles in reciprocating mode reached 53.1% compared with that of base oil; whereas the friction coefficient of 0.25 wt% MoS2 nanoparticles in unidirectional mode was similar with that of base lubricant (about 0.18). Flow pattern results of MoS2 nanoparticles around contact area show that particles piled up heavily in the inlet of contact zone in unidirectional mode, leading to starved lubrication. However, loose net-like aggregations were formed in reciprocating mode, benefiting to reduce friction and wear.

AB - The goal of the work is to investigate the flow pattern of MoS2 nanoparticles, which influences the lubrication properties of the lubricant. The tribological behavior of MoS2 nanoparticles was studied in unidirectional or reciprocating ball-on-disk sliding tribometer. Friction reduction of 0.25 wt% MoS2 nanoparticles in reciprocating mode reached 53.1% compared with that of base oil; whereas the friction coefficient of 0.25 wt% MoS2 nanoparticles in unidirectional mode was similar with that of base lubricant (about 0.18). Flow pattern results of MoS2 nanoparticles around contact area show that particles piled up heavily in the inlet of contact zone in unidirectional mode, leading to starved lubrication. However, loose net-like aggregations were formed in reciprocating mode, benefiting to reduce friction and wear.

KW - Flow pattern

KW - Lubrication mechanism

KW - MoS nanoparticles

KW - Sliding mode

UR - https://www.scopus.com/pages/publications/85042424382

U2 - 10.1016/j.triboint.2018.02.013

DO - 10.1016/j.triboint.2018.02.013

M3 - 文章

AN - SCOPUS:85042424382

SN - 0301-679X

VL - 122

SP - 38

EP - 45

JO - Tribology International

JF - Tribology International

ER -

An investigation on the lubrication mechanism of MoS₂ nanoparticles in unidirectional and reciprocating sliding point contact: The flow pattern effect around contact area

Abstract

Keywords

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