Direct laser cladding of stellite coatings and selection of process parameters

Rafal Jendrzejewski; Gerard Sliwinski; Ana Conde; Carmen Navas; Juan J. de Damborenea

doi:10.1117/12.611281

23 March 2005 Direct laser cladding of stellite coatings and selection of process parameters

Rafal Jendrzejewski, Gerard Sliwinski, Ana Conde, Carmen Navas, Juan J. de Damborenea

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611281
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

Abstract

The 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.

Citation Download Citation

Rafal Jendrzejewski, Gerard Sliwinski, Ana Conde, Carmen Navas, and Juan J. de Damborenea "Direct laser cladding of stellite coatings and selection of process parameters", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611281

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