DIFFUSION OF ATOMIC HYDROGEN INTO THE CRYSTAL LATTICE OF THE PISTON RINGS OF INTERNAL COMBUSTION ENGINES
The article discusses the causes of hydrogen wear of piston rings of internal combustion engines. Shown the reasons for the appearance of atomic hydrogen in the friction zone of the piston rings on the cylinder wall. Found that desorption of hydrogen from the structure of the piston rings and the adsorption of hydrogen on the surface of the piston rings slightly affect their hydrogen wear. Propose computational dependencies, allowing to determine the degree of diffusion of atomic hydrogen into the crystal lattice of the solid. It is revealed that the main factors affecting the rate of hydrogen wear are temperature, pressure, strain, structure, and lattice defects. In the article the technique of strengthening subsurface layer of the piston rings of internal combustion engines, those thereby reducing the diffusion of hydrogen released from the fuel into the crystal lattice. The research results can be used in the design and repair of piston rings of internal combustion engines.