TiN coating in ring-on-ring sliding with distlled water lubrication 5MPa, 0.1m/s specimn. #A45/#B45

Wear tests in sliding friction of TiN coating on 1.4021 (EN 10088-1) heat treated stainless steel. Ring - on - ring contact in unidirectional sliding, TiN over TiN. Mean contact stress: 5MPa. Sliding velocity: 0,1 m/s. Mean friction radius: 9.5mm. Lubricant: DISTILLED WATER. Tribometer: PT-3. Overall test time till coating penetration  90 min. The test was run in an intermittent mode with coating's condition examination at 3 min intervals with incremental increase of time interval to 5, 10 and 20 min.Secimen numbers: A45 (top, rotating), B45 (bottom, non-rotating).Data format: Matlab. Data condition: processed.Data vectors in *.mat file:time_zbior - overall test's running time,U_zbior - overall friction coefficient .