PROTECTION OF STEAM TURBINE BLADES AGAINST EROSION BY USING LASER CLADDING
Journal Title: Tribologia - Year 2012, Vol 242, Issue 2
Abstract
In this study, the problem of steam turbines’ blades erosive destruction is analysed. The currently used methods of blade protection using stellite 6 protective plates is outlined in this study. The advantages of this method are also mentioned, i.e. the plates falling off during turbine operation. A method of steam turbine blade protection obtained in the process of protective coatings produced by laser cladding on the blades’ surface are also presented. After 11 months of the turbine operation, an examination of its condition was conducted. The examination indicated that the blades with the coating were less eroded, especially those cladded with stellite 6, than the blades without the coating. It was proved that laser cladding of the coatings ensures the best process of their production and the high quality of the coating.
Authors and Affiliations
Aleksander Iwaniak, Marek Hetmańczyk
Wysokotemperaturowe własności tribologiczne stopów Fe-Al
APPLICATION OF ROUGH SET THEORY TO ANALYSE THE RESULTS OF EMISSION TESTS OF METAL IONS IN HIP ENDOPROSTHESIS
The aim of the study was to evaluate the usefulness of rough set theory in the analysis of endoprosthesis wear. In the article, two main parts can be distinguished: the first describes the tribological study of hip endop...
THE INFLUENCE OF OPERATING CONDITIONS ON SELECTED PROPERTIES OF THE SURFACE LAYER OF THE RAILS AND WHEELS OF TRAMS
The paper presents the results of research on the hardness and surface geometric structure of selected surfaces of the wheels and rails of a tram system. Vehicles whose rims were examined belonged to the Municipal Transp...
Badanie intensywności zużycia wybranych stali na elementy robocze pracujące w glebie
W warunkach polowych wyznaczono intensywność zużywania trzech gatunków stali – dwóch stali borowych, przeznaczonych na elementy robocze narzędzi rolniczych pracujących w glebie i miękkiej stali (S 235), zastosowanej w ce...
ANALYSIS OF BEARING CLEARANCE AND WIDTH OF AN OIL GROOVE ON THE CHARACTERISTIC OF FLUID FILM IN HYDRODYNAMIC MAIN CRANKSHAFT BEARINGS
Paper represents an analysis of the influence of oil groove width and bearing clearance on the characteristics of oil film in a hydrodynamic journal main crankshaft bearing. Analysis was performed to define the influence...