TY JOUR TI Assessment of sustaining counter pressure of improver-inhabited oils containing additives of zinc and molybdenum dithiophosphates under friction in boundary lubrication mode KW lubricants KW tribologically active additives KW zinc dialkyldithiophosphate KW molybdenum dialkyldithiophosphate KW bearing capacity KW four-ball machine JO Science intensive technologies in mechanical engineering AU Buyanovskiy, I.A. AU Samusenko, V.D. AU Bolshakov, A.N. AU Scherbakov, Y.I. PY 2025 IS 2025 PB Bryansk State Technical University