Mechanism of Sliding Wear under Lubrication Conduction A1-Balqa Applied University

Proper apparatus was designed to facilitate the application of suitable normal load on cylindrical shape steel specimen. The pattern of roughness and wear has been obtained by changing the sliding speed, the number of passes and surface roughness under both dry and lubricated conditions. In case of lubricated conditions the influence of prior roughness is not pronounced. Friction and wear had increased with time under dry sliding conditions, but under lubricated conditions friction and wear had decreased with increased running time. The increases in normal load tends to decrease the friction under lubricant conditions more than that under dry sliding conditions. Siezur takes place under dry sliding conditions at higher normal load and lower surface roughness. Phosphorated oil film was superior in minimizing friction and wear compared to other lubrications oils.