... to be uniform and constant throughout the material volume and it only depends on the absolute temperature, T, by an Arrhenius relationship: 0 400 800 1 20 0 0 ,0 0,51 ,0 1,5 2, 0 2, 5tLSteady-state ... strengthened (DS) copper alloys and precipitation hardened (PH) copper alloys (Barabash et al., 20 07 ; Fabritsiev & Pokrovsky, 20 05 ; ITER, 20 01 ; Lorenzetto et al., 20 06 ; Zinkle & Fabritsiev, ... Enhancing Processes 26 tin. At present, specially leaded bronzes CuSn10Pb and CuSn10Pb 10 like bearing bronzes are used (Skočovský et al., 20 00 , 20 06 ). Lead (additive from 4 to 25 %) improves bearing...