西安交通大学现代设计及转子-轴承系统教育部重点实验室,西安,710049
网络首发:2019-02-10,
纸质出版:2019
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梅堂杰, 郭俊德, 仝哲, 等. 滑动模式对含表面修饰MoS2纳米片润滑油摩擦学性能的影响[J]. 西安交通大学学报, 2019,53(2):24-31+120. DOI: 10.7652/xjtuxb201902004.
Effects of Sliding Mode on Tribological Properties of Lubricating Oil with Surface-Modificated MoS2 Nanosheets and the Mechanism[J]. 2019, 53(2): 24-31+120. DOI: 10.7652/xjtuxb201902004.
梅堂杰, 郭俊德, 仝哲, 等. 滑动模式对含表面修饰MoS2纳米片润滑油摩擦学性能的影响[J]. 西安交通大学学报, 2019,53(2):24-31+120. DOI: 10.7652/xjtuxb201902004. DOI:
Effects of Sliding Mode on Tribological Properties of Lubricating Oil with Surface-Modificated MoS2 Nanosheets and the Mechanism[J]. 2019, 53(2): 24-31+120. DOI: 10.7652/xjtuxb201902004. DOI:
为探究不同的滑动模式对含表面修饰MoS
2
纳米片润滑油的摩擦学性能的影响
将含不同质量分数KH-MoS
2
的润滑油样分别在单向和双向滑动模式下进行摩擦学试验
对比分析了其摩擦学性能
并建立了单向和双向滑动模式下的润滑模型。首先
使用超声处理硅烷偶联剂(KH570)修饰的MoS
2
纳米片(KH-MoS
2
)分散到石蜡油中
制备成含不同质量分数KH-MoS
2
的润滑油样; 然后
分别在单向和双向滑动模式下
采用球盘摩擦磨损试验机测试含不同质量分数KH-MoS
2
纳米片的润滑油样的摩擦学性能; 最后
通过对比分析对摩钢球的磨斑和对偶盘磨痕表面
探究了滑动模式对含有KH-MoS
2
纳米片的润滑油样的摩擦学性能的影响。根据摩擦试验结果
建立了单向和双向滑动模式的润滑机理模型
研究了单向和双向滑动模式下含有KH-MoS
2
纳米片的润滑油样的减摩抗磨机理。结果表明
在单向和双向滑动模式下
摩擦系数均随润滑油样中KH-MoS
2
质量分数的增加而减小。在石蜡油中添加质量分数1%的KH-MoS
2
时
双向滑动模式下获得最优摩擦系数可低至0.075
比同等滑动模式下使用纯石蜡油油样润滑时的摩擦系数低约53.4%
比单向滑动模式下使用同一油样润滑时的摩擦系数低约25%。
To explore the different effects produced by different sliding modes on the tribological properties of MoS
2
nano-lubricant
tribological tests were carried out under unidrectional and reciprocating sliding modes with different lubricating oil samples containing surface-modified MoS
2
nanosheets. Lubricating oil samples were prepared by dispersing silane coupling agent(KH570)modified MoS
2
nanosheets into liquid paraffin oil through ultrasonic treatment
then anti-friction and anti-wear properties of lubricating oil samples with different concentrations of KH-MoS
2
nanosheets were tested by ball-on-disk friction and wear tester under unidirectional and reciprocating sliding modes respectively. The influence of sliding mode on the tribological properties of lubricating oil with MoS
2
nanosheets was investigated by comparing and analyzing the wear scar of steel ball and the surface of dual discs. According to the friction test results
the lubrication models of unidirectional and reciprocating sliding modes were established
and the anti-friction and anti-wear mechanism of lubricating oil containing KH-MoS
2
nanosheets under unidirectional and reciprocating sliding modes were investigated. The results show that the friction coefficient(COF)of lubrication oils nanoparticles decreases with the increasing concentration of KH-MoS
2
nanosheets in lubricating oil under unidirectional and reciprocating sliding modes. The lowest COF of 0.075 can be obtained when the added mass fraction of KH-MoS
2
nanosheets in paraffin oil reaches 1% under reciprocating sliding mode
which is much lower than that under unidirectional sliding mode. The COF gets 53.4% lower than that lubricated by pure paraffin oil under reciprocating sliding mode and 25% lower than that of unidirectional sliding mode lubricated by the same lubricating oil sample.
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