Experimental Investigation of Friction Coefficient and Wear Rate of Stainless Steel 304 Sliding against Smooth and Rough Mild Steel Counterfaces

Authors : Mohammad CHOWDHURY, Dewan NURUZZAMAN, Biplov ROY

Pages : 597-609

View : 18 | Download : 8

Publication Date : 2014-01-02

Article Type : Research Paper

Abstract :In the present study, friction coefficient and wear rate of stainless steel 304 insert ignore into journalissuearticles values(SS 304); sliding against mild steel  are investigated experimentally. In order to do so, a pin on disc apparatus is designed and fabricated.  Experiments are carried out when smooth or rough mild steel pin slides on SS 304 disc. Experiments are  conducted at normal load 10, 15 and 20 N, sliding velocity 1, 1.5 and 2 m/s and relative humidity 70%.  Variations of friction coefficient with the duration of rubbing at different normal loads and sliding velocities are  investigated. Results show that friction coefficient is influenced by 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. The obtained results reveal that friction coefficient decreases with  the increase in normal load for SS 304 mating with smooth or rough mild steel counterface. On the other hand,  it is also found that friction coefficient increases with the increase in sliding velocity. Moreover, wear rate  increases with the increase in normal load and sliding velocity. The magnitudes of friction coefficient and wear  rate are different depending on sliding velocity and normal load for both smooth and rough counterface pin  materials.
Keywords : Friction coefficient, wear rate, SS 304, mild steel, normal load, sliding velocity