Effect of surface roughness on steel-steel dry friction coefficient

Subject Areas : Smart & Advanced Materials

ح. چارستاد ¹ , س.م خورسندی جو ²

1 - Ms. C., South Tehran Branch, Islamic Azad University, Tehran, Iran
2 - Assistant Professor, South Tehran Branch, Islamic Azad University, Tehran, Iran

Received: 2015-05-15 Accepted : 2015-05-15 Published : 2012-12-01

Keywords: Surface asperity Surface roughness Dry friction coefficient,

Abstract :

The influence of surface roughness magnitude and direction on dry static friction coefficient between two similar steel samples has been studied through an experiment. A testing apparatus has been designed and fabricated to measure the friction coefficient for a few forms of surface asperity. According to the results of the experiments, dry friction coefficient is affected by both magnitude and direction of surface roughness.