TY JOUR TI ANALYSIS OF THE MICRO PROFILE FORMATION OF MACHINE ELEMENT SURFACES AT MACHINING STAGES AND RUNNING-IN CONDITIONS OF BOUNDARY FRICTION KW running-in KW turning KW grinding KW deformation KW roughness KW processes KW stationarity KW ergodicity KW amplitude-frequency characteristics JO Transport engineering AU Fedorov, V.P. AU Nagorkin, M.N. AU Smolentsev, E.V. AU Kovaleva, E.V. PY 2023 IS 2023 PB Bryansk State Technical University