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Title: Effect of laser surface texturing (LST) on tribochemical films dynamics and friction and wear performance

Abstract

Surface texturing or topographical design is one of the primary techniques to control friction and wear performance of surfaces in tribological contact. Laser surface texturing (LST), whereby a laser beam is used to produce regular arrays of dimples on a surface, has been demonstrated to reduce friction in conformal lubricated contacts. Friction and wear behavior under boundary lubrication is also known to be dependent on the formation and durability of the tribochemical film formed from lubricant additives. In this paper, the effects of LST on the formation and durability of tribochemical films and its consequent impacts on friction and wear behavior in various lubrication regimes were evaluated. Friction and wear tests that cycled through different lubrication regimes were conducted with both polished and LST treated surfaces using a synthetic lubricant with and without model additives of ZDDP and MoDTC mixture. In the base oil without additives, LST produced noticeable reduction in friction in all lubrication regimes. However, with low-friction model additives, friction was higher in tests with LST due to significant differences in the tribochemical film formation in the polished and LST surfaces, as well as the sliding counterface. Continuous tribo-films were formed on ball conterface rubbed against polished surfacesmore » while the films were streaky and discontinuous in ball rubbed against LST surfaces. LST produced more wear on the ball counterface in both base and additized oils. Lastly, no measurable wear was observed in both the polished and LST flat specimens.« less

Authors:
 [1];  [2];  [2];  [3]
+ Show Author Affiliations
  1. Argonne National Lab. (ANL), Argonne, IL (United States); Obafemi Awolowo Univ., Ile-Ife (Nigeria)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Obafemi Awolowo Univ., Ile-Ife (Nigeria)
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1338952
Alternate Identifier(s):
OSTI ID: 1247022
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Wear
Additional Journal Information:
Journal Volume: 332-333; Journal Issue: C; Journal ID: ISSN 0043-1648
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; LST; tribochemical films; oil additives; friction; wear; lubrication regimes

Citation Formats

Olofinjana, Bolutife, Lorenzo-Martin, Cinta, Ajayi, Oyelayo O., and Ajayi, Ezekiel O. Effect of laser surface texturing (LST) on tribochemical films dynamics and friction and wear performance. United States: N. p., 2015. Web. doi:10.1016/j.wear.2015.02.050.
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Olofinjana, Bolutife, Lorenzo-Martin, Cinta, Ajayi, Oyelayo O., & Ajayi, Ezekiel O. Effect of laser surface texturing (LST) on tribochemical films dynamics and friction and wear performance. United States. https://doi.org/10.1016/j.wear.2015.02.050
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Olofinjana, Bolutife, Lorenzo-Martin, Cinta, Ajayi, Oyelayo O., and Ajayi, Ezekiel O. Sat . "Effect of laser surface texturing (LST) on tribochemical films dynamics and friction and wear performance". United States. https://doi.org/10.1016/j.wear.2015.02.050. https://www.osti.gov/servlets/purl/1338952.
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@article{osti_1338952,
title = {Effect of laser surface texturing (LST) on tribochemical films dynamics and friction and wear performance},
author = {Olofinjana, Bolutife and Lorenzo-Martin, Cinta and Ajayi, Oyelayo O. and Ajayi, Ezekiel O.},
abstractNote = {Surface texturing or topographical design is one of the primary techniques to control friction and wear performance of surfaces in tribological contact. Laser surface texturing (LST), whereby a laser beam is used to produce regular arrays of dimples on a surface, has been demonstrated to reduce friction in conformal lubricated contacts. Friction and wear behavior under boundary lubrication is also known to be dependent on the formation and durability of the tribochemical film formed from lubricant additives. In this paper, the effects of LST on the formation and durability of tribochemical films and its consequent impacts on friction and wear behavior in various lubrication regimes were evaluated. Friction and wear tests that cycled through different lubrication regimes were conducted with both polished and LST treated surfaces using a synthetic lubricant with and without model additives of ZDDP and MoDTC mixture. In the base oil without additives, LST produced noticeable reduction in friction in all lubrication regimes. However, with low-friction model additives, friction was higher in tests with LST due to significant differences in the tribochemical film formation in the polished and LST surfaces, as well as the sliding counterface. Continuous tribo-films were formed on ball conterface rubbed against polished surfaces while the films were streaky and discontinuous in ball rubbed against LST surfaces. LST produced more wear on the ball counterface in both base and additized oils. Lastly, no measurable wear was observed in both the polished and LST flat specimens.},
doi = {10.1016/j.wear.2015.02.050},
journal = {Wear},
number = C,
volume = 332-333,
place = {United States},
year = {Sat Jun 06 00:00:00 EDT 2015},
month = {Sat Jun 06 00:00:00 EDT 2015}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1016/j.wear.2015.02.050
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Works referenced in this record:

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journal, June 2009

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journal, February 1993

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    journal, March 2019

    • Dudek, Kazimiera; Szczypinski-Sala, Wojciech; Lubas, Janusz
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    Experimental Investigation and Mechanism Analysis of Tungsten Disulfide Soft Coated Micro-Nano Textured Self-Lubricating Dry Cutting Tools
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    • International Journal of Precision Engineering and Manufacturing-Green Technology, Vol. 5, Issue 2
    • DOI: 10.1007/s40684-018-0022-9

    Effects of Cast-Iron Surface Texturing on the Anti-Scuffing Performance under Starved Lubrication
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