Determination of superficial layer behaviour for plastic deformations during indentation or indentation by sliding, free rolling or different relative sliding levels; wear in free rolling or sliding at low or high temperatures; wear of composite materials when rolling with lubrication or without lubrication, evaluation of surface quality by 2D or 3D contact profilometry. Tests on different tribotester (pin-on-disc, ball on-disc and block-on-ring, continous sliding, reciprocating etc.), in dry and lubricated regimes, using high performance tribometers