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Direct laser cladding of stellite coatings and selection of process parameters

AuthorsJendrzejewski, R; Sliwinski, G.; Conde, A. ; Navas, C.; Damborenea, Juan de
KeywordsOptical coatings
Issue Date2005
PublisherThe International Society for Optics and Photonics
CitationProceedings of SPIE - The International Society for Optical Engineering 5777 (PART II): 921-924 (2005)
AbstractThe direct laser cladding technique is applied for preparation of Co-based stellite SF6 protective coatings on the chromium steel base of a composition designed for the steam turbine blades. The cw 1.5 kW CO2 laser stand equipped with the multi-stream nozzle characterized by a powder feeding coaxial with the laser beam is used. It is observed that the increase of the base preheating temperature and the average temperature of the coating reduces the cracking susceptibility of the laser clads. This is accompanied by the decrease of the corrosion and wear resistances.
Identifiersdoi: 10.1117/12.611281
issn: 0277-786X
Appears in Collections:(CENIM) Artículos
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