REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

ONE APPROACH IN organizing OF TECHNOLOGY OF DEPOSITION OF METALLIC COATINGS ON AIRCRAFT ENGINE TURBINE BLADES

STRAIN POSAVLJAK

Faculty of Mechanical Engineering, Banja Luka, strain.posavljak@unibl.rs

slavko vulic

ORAO A.D., Bijeljina, slavko.vulic@orao.aero

zoran karac

ORAO A.D., Bijeljina, zoran.karac@orao.aero

Abstract: One approach in organizing of technology of deposition of thin metallic coatings on  the turbine blades of two aircraft engine, was described in this paper. Technology of deposition of one coating on the base of  Ni and two coatings on the base of Al was organized using special defined and completed system. Cathodic arc deposition technique was used. The results of verification with criteria of acceptability that included in this paper were confirmed success of organizing process. The data about thermal fatigue take an important place in the set of these results. In the turbine blades of one aircraft engine, cathodic arc deposition technique for one coating on the base of Al, now is used instead of the elder pack-aluminizing technique.

Key words: Aircraft engine, Turbine blades, Metallic coatings, Cathodic arc deposition technique.