Justification and prospects for use of protection methods of surfaces of marine internal combustion engines from effects of cavitation

Problems of protecting the surfaces of marine internal combustion engines from the intense effects of cavitation on them are discussed. The issues related to the peculiarities of the occurrence of cavitation in liquid media were studied on the basis of the analysis of literary sources. The influence of various factors, for example, temperature and viscosity of the liquid on the intensity of cavitation processes, is noted, and a set of various hypotheses related to the destruction of material during cavitation is also considered. Taking into account the analysis of a number of studies, it was concluded that the use of tap and distilled water as a working fluid is not recommended, but it is recommended to use antifreeze of various brands. Сonclusions were drawn that polyurethane-based polymers, for example, polyurethane rubbers, which can be used to protect the surfaces of marine internal combustion engines, have good adhesive properties.