Keyword: «weldability»

This paper reveals the features of the operation of river vessels in the territory of Yakutia, as well as the technologies used in the repair and restoration of propeller shafts. With the seasonal nature of navigation, it is possible to prevent sudden failures of these units during the operation of ships by preventive repairs. The propeller shaft fails for three main reasons – corrosion, wear and fatigue damage. These defects are eliminated by mechanical grinding and resurface welding or welding.

This paper reveals the features of the operation of river vessels in Yakutia, as well as the technologies used in the repair and restoration of propeller shafts. With the seasonal nature of navigation, it is possible to prevent sudden failures of these nodes during the operation of ships by preventive repairs. The propeller shaft fails for three main reasons – corrosion, wear and fatigue damage. These defects are eliminated by mechanical grinding and subsequent surfacing or welding. Тhe paper shows that the use of scientifically based approaches in the restoration of propeller shafts is a necessary condition for obtaining a high-quality deposited layer.