Abstract
Friction and wear phenomena alter the behavior of the material surface, where certain relevant parameters which characterize the surface are influenced. Therefore, the objective of this work is to identify the parameters most influencing the friction coefficient (f), the wear rate (Ws), and the volume parameters (Vmc and Vvv) during the friction test. The friction tests were carried out by adopting the methodology of 23 complete planes with three factors (D, V, and Py), at two levels each. The results show a decrease in the wear rate when all three factors are at their highest level and a decrease in the friction coefficient when using minimum load on speed long distances. In addition, the mathematical models developed allow to reveal a correlation between the test parameters (D, V, and Py), and the responses studied (f, Ws) in their study field. Moreover, the volume parameters Vmc and Vvv were evaluated during the tests, and the morphology of the worn surface shows that the friction under a load of 1 N leads to the predominance of an abrasive wear mechanism, while a load of 10 N promotes an adhesive wear mechanism.
Highlights
The surface is the most important part of any engineering component [1]
The results show a decrease in the wear rate when the three factors are at their highest level and a decrease in the friction coefficient when using minimum loads and speeds on important distances
Surface roughness constitutes one of topography elements, which allow to characterize the materials degradation subjected to different tribological conditions [11,12,13,14].The evaluation methods based on response surface models (RSM) as well as numerical simulations used to predict the surfaces behavior of materials during mechanical contact
Summary
The surface is the most important part of any engineering component [1]. In service, the surfaces of mechanical systems are subjected to severe conditions, they are the most exposed to external attacks such as wear, corrosion and fatigue, which reduces their service life [2] and compromises the operation.interface phenomena play a crucial role in engineering, and their evaluation and their control contribute to the development of many advanced domain such as electronics, information technologies, energy, optics and tribology [3, 4]. Friction is a very important parameter, which provides information on the materials behavior in contact It governs many variables such as the contact stresses and its conditions as well as the formation of transfer film/debris. Surface roughness constitutes one of topography elements, which allow to characterize the materials degradation subjected to different tribological conditions (friction, lubrication and wear) [11,12,13,14].The evaluation methods based on response surface models (RSM) as well as numerical simulations used to predict the surfaces behavior of materials during mechanical contact. The experiment is carried out on a materialsteel X52, treated by quenching and tempering.Surface examinations by scanning electronic microscope (SEM) and a 3D profilometerwere carried out in order to assess the frictional behaviour and the wear resistance of steel
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