TY JOUR TI Physical-chemical factors effect on the structure and properties of metals under conditions of contact deformation during friction in a surface-active lubricating medium KW friction KW wear KW metals KW lubricants KW surfactants KW phase transformations KW contact deformation KW structure JO Science intensive technologies in mechanical engineering AU Kuksenova, L.I. PY 2025 IS 2025 PB Bryansk State Technical University