TRIBOLOGICAL INVESTIGATIONS OF MILD STEEL PINS OF DIFFERENT CROSS-SECTIONAL AREA WITH CAST IRON PLATE

Abstract

Mechanical, electromechanical and biological systems are used in every engineering application and it has been noted that the substantial amount of energy is consumed in overcoming friction between the mating surfaces of these systems. Wear of parts or components results in resource wastage and unnecessary heat generation. A huge amount has been spent till date to cover for friction and wear losses. The study of tribological properties (i.e., friction, wear and lubricants) has gained significance in the recent years as an effort for the development of new material to reduce the frictional losses. Tribological study has of utmost importance for many systems which depends on wear and friction values. There could be enormous amount savings by improved tribological practices over the system.

The experimental study of tribological characteristics contains study of friction and rate of wear of tribopair for which experiment was carried in lubricated conditions at different temperatures. The high temperature Rotary Tribometer was applied for determination of coefficient of friction and rate of wear at interface of tribopair. From the results so obtained after experiment, it was found that the wear rate initially had high value of 7 x 10-6 mm3/Nm and then decreased to a stable value of 2 x 10-6 mm3/Nm. The coefficient of friction initially had value of 0.14 which then decreased to a stable value of 0.04 after having attained constant relative speed of tribopair.