Study of the influence of surface roughness parameters on the frictional characteristics of materials

L. Pena-Paras, D. Maldonado-Cortes, C. Martinez, M. Arias, A. Ontiveros, B. Castanos, M. Morales-Martinez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The study of surface roughness parameters and their correlation with coefficient of friction (COF) is of great importance for metal-mechanic applications. Evidence suggests that Ra (surface roughness average) is not directly related to COF under sliding conditions. In this study, the relation between surface roughness parameters, namely Ra, Rt (maximum height of the profile), Δa (mean slope of the profile), and COF, as well as their interactions, were particularly studied. The materials were of an aluminium alloy Al A380. Samples were chemically attacked to modify their surface roughness characteristics. Six different conditions were tested: Al A380 with the surface attacked with an alkaline substance for 0, 2.5, 5, 15, 30 and 60 min. The value of COF was determined using a T-05 block-on-ring tribotester, and surface roughness data was obtained using an optical 3D surface measurement system. MathWorks MATLAB software was used to process the data. Results show that Δa has a strong positive correlation with COF during sliding conditions, whereas both Ra and Rt may vary without directly affecting COF, contrary to the commonly used industry standard.

Original languageEnglish
Title of host publicationIOP Conference Series: Materials Science and Engineering
PublisherInstitute of Physics Publishing
Volume591
Edition1
DOIs
Publication statusPublished - 14 Aug 2019
Event7th International Conference on Modern Technologies in Industrial Engineering, ModTech 2019 - Iasi, Romania
Duration: 19 Jun 201922 Jun 2019

Publication series

NameIOP Conference Series: Materials Science and Engineering
PublisherIOP Publishing Ltd.
ISSN (Print)1757-8981

Conference

Conference7th International Conference on Modern Technologies in Industrial Engineering, ModTech 2019
CountryRomania
CityIasi
Period19/6/1922/6/19

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

Cite this

Pena-Paras, L., Maldonado-Cortes, D., Martinez, C., Arias, M., Ontiveros, A., Castanos, B., & Morales-Martinez, M. (2019). Study of the influence of surface roughness parameters on the frictional characteristics of materials. In IOP Conference Series: Materials Science and Engineering (1 ed., Vol. 591). [012025] (IOP Conference Series: Materials Science and Engineering). Institute of Physics Publishing. https://doi.org/10.1088/1757-899X/591/1/012025
Pena-Paras, L. ; Maldonado-Cortes, D. ; Martinez, C. ; Arias, M. ; Ontiveros, A. ; Castanos, B. ; Morales-Martinez, M. / Study of the influence of surface roughness parameters on the frictional characteristics of materials. IOP Conference Series: Materials Science and Engineering. Vol. 591 1. ed. Institute of Physics Publishing, 2019. (IOP Conference Series: Materials Science and Engineering).
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Pena-Paras, L, Maldonado-Cortes, D, Martinez, C, Arias, M, Ontiveros, A, Castanos, B & Morales-Martinez, M 2019, Study of the influence of surface roughness parameters on the frictional characteristics of materials. in IOP Conference Series: Materials Science and Engineering. 1 edn, vol. 591, 012025, IOP Conference Series: Materials Science and Engineering, Institute of Physics Publishing, 7th International Conference on Modern Technologies in Industrial Engineering, ModTech 2019, Iasi, Romania, 19/6/19. https://doi.org/10.1088/1757-899X/591/1/012025

Study of the influence of surface roughness parameters on the frictional characteristics of materials. / Pena-Paras, L.; Maldonado-Cortes, D.; Martinez, C.; Arias, M.; Ontiveros, A.; Castanos, B.; Morales-Martinez, M.

IOP Conference Series: Materials Science and Engineering. Vol. 591 1. ed. Institute of Physics Publishing, 2019. 012025 (IOP Conference Series: Materials Science and Engineering).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - The study of surface roughness parameters and their correlation with coefficient of friction (COF) is of great importance for metal-mechanic applications. Evidence suggests that Ra (surface roughness average) is not directly related to COF under sliding conditions. In this study, the relation between surface roughness parameters, namely Ra, Rt (maximum height of the profile), Δa (mean slope of the profile), and COF, as well as their interactions, were particularly studied. The materials were of an aluminium alloy Al A380. Samples were chemically attacked to modify their surface roughness characteristics. Six different conditions were tested: Al A380 with the surface attacked with an alkaline substance for 0, 2.5, 5, 15, 30 and 60 min. The value of COF was determined using a T-05 block-on-ring tribotester, and surface roughness data was obtained using an optical 3D surface measurement system. MathWorks MATLAB software was used to process the data. Results show that Δa has a strong positive correlation with COF during sliding conditions, whereas both Ra and Rt may vary without directly affecting COF, contrary to the commonly used industry standard.

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Pena-Paras L, Maldonado-Cortes D, Martinez C, Arias M, Ontiveros A, Castanos B et al. Study of the influence of surface roughness parameters on the frictional characteristics of materials. In IOP Conference Series: Materials Science and Engineering. 1 ed. Vol. 591. Institute of Physics Publishing. 2019. 012025. (IOP Conference Series: Materials Science and Engineering). https://doi.org/10.1088/1757-899X/591/1/012025