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Reducing Friction and Wear of Tribological Systems through Hybrid Tribofilm Consisting of Coating and Lubricants
Lubricants 2014, 2(3), 113-123; doi:10.3390/lubricants2030113

Tribofilm Formation As a Result of Complex Interaction at the Tool/Chip Interface during Cutting

1,* , 2
1 Department of Mechanical Engineering, McMaster University, 1280 Main Street West Hamilton, ON L8S 4L7, Canada 2 Railway Research Scientific Institute, Moscow 105005, Russia 3 Faculty of Engineering, Ain Shams University, Cairo 11566, Egypt 4 Technical Research Center, Cairo 11461, Egypt 5 Department of Mechanical Engineering, University of New Hampshire, Durham, NH 03824, USA
* Author to whom correspondence should be addressed.
Received: 29 April 2014 / Revised: 7 June 2014 / Accepted: 12 June 2014 / Published: 21 July 2014
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Tribofilms are dynamic structures that form at the interface during frictional sliding. These films play a significant role in friction control, particularly under heavy loaded/high temperature conditions, such as those found at the cutting tool/chip interface. The thermodynamic aspects of tribofilm formation are discussed here. Thermodynamic analysis of entropy production during friction shows that there are two types of tribofilms that affect the wear behavior of a cutting tool: (1) tribofilms forming as a result of the surface modification of the cutting tools with further tribo-oxidation; and (2) tribofilms that form as a result of material transfer from the contacting frictional body (the workpiece) during the tool/chip interaction. Experimental examples are presented, outlining the beneficial role of both types of tribofilms.
Keywords: tribofilms; cutting tool; thermodynamic analysis tribofilms; cutting tool; thermodynamic analysis
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Fox-Rabinovich, G.S.; Gershman, I.; Hakim, M.A.E.; Shalaby, M.A.; Krzanowski, J.E.; Veldhuis, S.C. Tribofilm Formation As a Result of Complex Interaction at the Tool/Chip Interface during Cutting. Lubricants 2014, 2, 113-123.

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