Optimization of Materials for Blades of Water Turbines

15. - 17. 5. 2013, Brno, Czech Republic, EU
OPTIMIZATION OF MATERIALS FOR BLADES OF WATER TURBINES
Pavlína HÁJKOVÁ, Stanislav KRUM, Jan HOLEC, Evgeniy ANISIMOV, Eckl Carlos MEZZAROBA,
Františka PEŠLOVÁ, Jiří CEJP
Czech Technical University in Prague
Abstract
The paper compares the properties of used and recently designed materials for water turbines blades.
Materials are evaluated from standpoint of microstructure, mechanical properties and wear resistance.
Stainless steel of type COR13-4 was selected as an initial material. The recently designed materials include
heat-treated spheroidal graphite cast iron and vermicular graphite cast iron with modified chemical
composition.
Keywords: water turbine; blade material; steinless steel; COR13-4; cast iron; ADI
Author did not supply full text of the paper/poster