Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
TOPOGRAPHIC CHARACTERIZATION AND TRIBOLOGICAL ANALYSIS OF PARTIAL AND TOTAL TEXTURED SURFACES
Submission Author:
Túlio Miorini Vieira Alves Rodrigues , MG , Brazil
Co-Authors:
Túlio Miorini Vieira Alves Rodrigues, Isadora Zechin de Oliveira Toniello, Alessandro Augusto Olimpio Ferreira Vittorino, Washington Martins da Silva Jr.
Presenter: Alessandro Augusto Olimpio Ferreira Vittorino
doi://10.26678/ABCM.COBEM2019.COB2019-2157
Abstract
The Surface texturing is the alteration of the surface topography by standardized micro-cavities. These are able to create hydrodynamic pressures, retaining debris and storing lubricant, increasing the load capacity on contact. The main objective of this method is to find the situation that provides the best tribological behavior, that is, it presents a good performance in reducing the coefficient of friction at a low cost. The methodology consists in the use of unmasked surface texturing of Chevron profiles ("V" format) to obtain totally, partially and non-textured surfaces of 1045 steel in alternating dry and lubricated sliding tests. The tests will be performed with the aid of a microtribometer. The set of modifications resulting from the surface texturing makes the textured samples more energy efficient, when compared to the smooth ones. In addition, by performing tests at the microtribometer, it will be possible to verify that the partial texturing is more efficient than the total in two aspects: both with respect to the coefficient of friction and the rate of wear.
Keywords
Lubricated sliding wear, surface texturing, Partial texturing, Surface Engineering, Tribology
