The Selected Tribological and Structural Properties of Protective Coatings Obtained by Different Methods

摘要

The coatings were obtained by high velocity oxy fuel method and their modification -new hybrid-spraying process, In this paper, the influence of manufacturing technology on structure and properties of coatings is presented. Examination of mechanical properties (microhardness) and selected results of tribological investigations of new material coatings are presented. The abrasion and erosion wear of materials were tested in ambient and elevated temperature. The article presents the results of structural studies of coatings too. Using a thickness gauge the rated uniformity of the applied coating, the thickness were determined. Microstructure, porosity, density of obtained coating was assessed using light microscope (LM). The obtained results confirm good erosion and abrasion properties of the tested coatings. Presented results indicate that the tested coatings may be used as a basic protection to wear condition in the energy industry.