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Submitted on: 22 January 2013.
Revised on: 01 May 2013.
Accepted on: 20 June 2013.
___________________Journal of Friction and Wear---PLEIADES PUBLISHING INC
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Submitted on: 28 December 2019.
Revised on: 19 April 2020.
Accepted on: 12 May 2020.
___________________Journal of Friction and Wear---PLEIADES PUBLISHING INC
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