Influence of thermo-mechanical properties of coatings on friction in elastohydrodynamic lubricated contacts

被引：17
作者：
Habchi, W. [1 ]
机构：
[1] Lebanese Amer Univ, Dept Ind & Mech Engn, Byblos, Lebanon
来源：
TRIBOLOGY INTERNATIONAL | 2015年 / 90卷
关键词：
Elastohydrodynamic Lubrication; Surface Coatings; Thermo-mechanical properties; Friction; CIRCULAR POINT-CONTACT; DLC; THICKNESS; MODEL; FILM;
D O I：
10.1016/j.triboint.2015.04.020
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper presents a numerical investigation of the influence of thermo-mechanical properties of coatings on friction in elastohydrodynamic contacts. In a previous work by the author, it was shown that thermal properties of coatings had a significant influence on friction. In fact, under high sliding speeds, friction was found to increase with the thermal inertia of coatings. The current work reveals that mechanical properties of coatings also have a significant impact on friction. Friction actually exhibits an increase with the rigidity of the coating. Furthermore, a combination of soft coatings with low thermal inertia is shown to maximize friction reduction while hard coatings with high thermal inertia maximize friction increase. These effects are found to increase with the coating thickness. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：113 / 122
页数：10
相关论文
共 23 条
  • [1] HYDRODYNAMIC LUBRICATION OF SOFT SOLIDS
    BENNETT, A
    HIGGINSO.GR
    [J]. JOURNAL OF MECHANICAL ENGINEERING SCIENCE, 1970, 12 (03): : 218 - &
  • [2] The Effect of DLC Coating Thickness on Elstohydrodynamic Friction
    Bjorling, M.
    Larsson, R.
    Marklund, P.
    [J]. TRIBOLOGY LETTERS, 2014, 55 (02) : 353 - 362
  • [3] Friction Reduction in Elastohydrodynamic Contacts by Thin-Layer Thermal Insulation
    Bjorling, M.
    Habchi, W.
    Bair, S.
    Larsson, R.
    Marklund, P.
    [J]. TRIBOLOGY LETTERS, 2014, 53 (02) : 477 - 486
  • [4] The Influence of DLC Coating on EHL Friction Coefficient
    Bjorling, M.
    Isaksson, P.
    Marklund, P.
    Larsson, R.
    [J]. TRIBOLOGY LETTERS, 2012, 47 (02) : 285 - 294
  • [5] Elastohydrodynamic Lubrication Analysis for Transversely Isotropic Coating Layer
    Chu, Li-Ming
    Chen, Chien-Yu
    Tee, Chin-Ke
    Chen, Qie-Da
    Li, Wang-Long
    [J]. JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 2014, 136 (03):
  • [6] Micro-elastohydrodynamic lubrication of coated cylinders using coupled differential deflection method
    Elsharkawy, A. A.
    Holmes, M. J. A.
    Evans, H. P.
    Snidle, R. W.
    [J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY, 2006, 220 (J1) : 29 - 41
  • [7] EHL OF COATED SURFACES - .1. NEWTONIAN RESULTS
    ELSHARKAWY, AA
    HAMROCK, BJ
    [J]. JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 1994, 116 (01): : 29 - 36
  • [8] EHL OF COATED SURFACES .2. NON-NEWTONIAN RESULTS
    ELSHARKAWY, AA
    HAMROCK, BJ
    [J]. JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME, 1994, 116 (04): : 786 - 793
  • [9] Traction of Lubricated Rolling Contacts between Thin-Film Coatings and Steel
    Evans, Ryan D.
    Cogdell, J. David
    Richter, Gerald A.
    Doll, Gary L.
    [J]. TRIBOLOGY TRANSACTIONS, 2009, 52 (01) : 106 - 113
  • [10] Stress distribution of coated film with a range of coated film thickness and elastic properties under a single EHL operating condition
    Fujino, Toshikazu
    Iwamoto, Katsumi
    Tanaka, Kentaro
    Shima, Masayuki
    [J]. TRIBOLOGY INTERNATIONAL, 2007, 40 (10-12) : 1638 - 1648
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