PCA Model of Fundamental Acoustic Finger Force for Out-of-Plane Ultrasonic Vibration and its Correlation with Friction Reduction

The effects of in-plane prestrain on the anti-pressure and anti-wear performance of monolayer MoS2 have been investigated by molecular dynamics simulation. The results show that monolayer MoS2 observably improves the load bearing capacity of Pt substrate. The friction reduction effect depends on the deformation degree of monolayer MoS2. The anti-pressure performance of monolayer MoS2 and Pt substrate is enhanced by around 55.02% when compressive prestrain increases by 4.03% and the anti-wear performance is notably improved as well. The improved capacities for resisting the in-plane tensile and out-of-plane compressive deformation are responsible for the outstanding lubrication mechanism of monolayer MoS2. This study provides guidelines for optimizing the anti-pressure and anti-wear performance of MoS2 and other two-dimension materials which are subjected to the in-plane prestrain.

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S161011 Friction Reduction Phenomenon of Sheets by Ultrasonic Vibration

The Proceedings of Mechanical Engineering Congress Japan ◽

10.1299/jsmemecj.2012._s161011-1 ◽

2012 ◽

Vol 2012 (0) ◽

pp. _S161011-1-_S161011-5

Author(s):

Kiminori TOYA ◽

Yuko KOBAYASHI ◽

Yuji KUBOTA

Keyword(s):

Ultrasonic Vibration ◽

Friction Reduction

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3806 Friction Reduction Phenomenon of Sheets by Ultrasonic Vibration

The proceedings of the JSME annual meeting ◽

10.1299/jsmemecjo.2008.5.0_275 ◽

2008 ◽

Vol 2008.5 (0) ◽

pp. 275-276

Author(s):

Kiminori TOYA ◽

Yuko KOBAYASHI ◽

Hideki NUKADA ◽

Masaki TAKAHASHI ◽

Takehiko SUZUKI

Keyword(s):

Ultrasonic Vibration ◽

Friction Reduction

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Effect of Ultrasonic Vibration on the Friction and Wear Properties of GCr15/45# Steel Frictional Pairs Lubricated by n-Al2O3 Additives

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.538-541.1920 ◽

2012 ◽

Vol 538-541 ◽

pp. 1920-1923

Author(s):

Yu Lin Qiao ◽

Shan Lin Yang ◽

Yan Zang ◽

Xin Yu Dong ◽

Qing Sheng Cui

Keyword(s):

Friction Coefficient ◽

Ultrasonic Vibration ◽

Photoelectron Spectroscopy ◽

Friction And Wear ◽

Ball Bearing ◽

Wear Scar ◽

Friction Reduction ◽

Wear Volume ◽

Wear Properties ◽

Friction And Wear Properties

The friction and wear properties of GCr15/45# steel frictional pairs lubricated by n- Al2O3 additives under ultrasonic vibration or not were studied. The scanning electron microscope(SEM), X-ray photoelectron spectroscopy(XPS) and energy dispersive spectrometer (EDS) were carried out to analyse the wear scar surface. The effect mechanism of ultrasonic vibration on friction pairs was discussed. The results indicated that ultrasonic vibration could decrease the friction and wear of GCr15/45# friction pairs, when the content of n-Al2O3 was 0.5wt%, the effect of ultrasonic vibration on friction pairs was most obvious. The friction coefficient, wear volume and wear scar depth under ultrasonic vibration decreased 10%, 34% and 13%, respectively. The friction reduction and anti-wear mechanism of n-Al2O3 was single “micro ball bearing” without ultrasonic vibration, and it changed to “micro ball bearing” and adsorption penetration film with ultrasonic vibration, so the friction coefficient and wear volume was reduced.

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