Wear in combustion engines: experiment and simulation on the base of movable cellular automata method

The model of wear is presented. This model is based on experimental data about the role of thin nanolayer (10n70 nm) that is formed on the surfaces of cylinder and piston in combustion engines. Nanolayer mostly consists of carbon and iron oxides. It is shown that experimentally measured values of wear rate (up to several nanometers per hour) can be explained from the viewpoint of interpretation of wear as an iextrusioni of surface nanolayer from the friction zone. Processes of plastic deformation and mass mixing in the nanolayer with modified chemical composition are simulated using movable cellular automata method. Simulation results are analyzed on the base of analytical models and compared with experimental data.