Friction Coefficient of Different Material Pairs Under Different Normal Loads and Sliding Velocities
Journal Title: Tribology in Industry - Year 2012, Vol 34, Issue 1
Abstract
In the present study, friction coefficients of different material pairs are investigated and compared. Using a pin on disc apparatus, friction coefficients of copper-copper, copper-brass, brass-brass, brass-copper pairs are investigated experimentally. Experiments are carried out when different types of pin slide on different disc materials under normal load 10, 15 and 20 N and sliding velocity 1, 2 and 3 m/s. Variations of friction coefficient with the duration of rubbing at different normal loads and sliding velocities are investigated. Results show that friction coefficient varies with duration of rubbing, normal load and sliding velocity. In general, friction coefficient increases for a certain duration of rubbing and after that it remains constant for the rest of the experimental time. Moreover, the obtained results reveal that friction coefficient decreases with the increase in normal load for all the tested pairs. On the other hand, it is also found that friction coefficient increases with the increase in sliding velocity for all the material pairs. The magnitudes of friction coefficient are different for different material pairs depending on sliding velocity and normal load.
Authors and Affiliations
M. A. Chowdhury, D. M. Nuruzzaman, A. H. Mia, M. L. Rahaman
Keywords
Related Articles
- EP ID EP108653
- DOI -
- Views 114
- Downloads 0
Effect of Changing Ellipiticity Ratio on the Formation of Ultra-Thin Lubricating Film
The mechanism of fluid film lubrication in ultra-thin conjunction under elliptical point contacts is discussed in this paper. The results of changing the ellipticity ratio are highlighted. The operating conditions; load...
Tribological Behavior of Aluminium Metal Matrix Composite with Addition of Bamboo Leaf Ash by GRA-Taguchi Method
The bamboo leaf ash (BLA) which was extruded from agro waste was used as a particulate reinforcement to produce economical AMMCs. The dry sliding wear behavior of Al-4.5 wt.% Cu alloy with the addition of 2, 4 and 6 wt.%...
The Wear Characteristics of Heat Treated Manganese Phosphate Coating Applied to AlSi D2 Steel with Oil Lubricant
Today, in the area of material design conversion coatings play an important role in the applications where temperature, corrosion, oxidation and wear come in to play. Wear of metals occurs when relative motion between co...
Wear and Friction Behavior of in-situ AA5052/ZrB2Composites under Dry Sliding Conditions
In-situ AA5052/ZrB2 composites with different volume percentage (0,3, 6 and 9 vol.%) of zirconium diboride (ZrB2) particles were successfully prepared by in-situ reaction between two inorganic salts potassium-hexa-fluoro...
The Role of Diffusion Media in Nitriding Process on Surface Layers Characteristics of AISI 4140 with and without Hard Chrome Coatings
The surface layer characteristics of the AISI 4140 tool steel treated by nitriding gas before and after hard chrome plating utilizing pure nitrogen diffusion media (fluidized bed reactor) and the without gas (muffle reac...