Heat-resisting CoNiCrAl coatings obtained by the Arc-PVD method and chromoaluminized on the nickel base superalloys.

• Autorzy: Swadźba L. , Maciejny A. , Mendala B.
• Konferencja: AMT'98 XVth Physical Metallurgy and Materials Science Conference 'Advanced materials & technologies' 17-21 May, 1998, Kraków-Krynica, Poland.
• Języki publikacji: EN

Abstrakty

EN

In the article the investigation results of obtaining and properties of the heat-resisting MeCrAlX coatings are presented. The coatings were formed on nickel. In the first stage the CoCr coatings were obtained by the Arc-PVD method (cathodic vacuum arc evaporation). Basic parameters of coatings formation were determined. High efficiency of the Arc-PVD method in the deposition from one or two sources of the complex chemical composition are shown. Relationships between the chemical composition of targets and the chemical composition of the coatings obtained by the Arc-PVD method were determined. Targets with the content of 70 wt. % Co and 30 wt. % Cr. The basic deposition parameters were determined. In the second stage coatings underwent the diffusion chromoaluminizing process. Combining the PVD and diffusion processes allowed to eliminate the substrate detrimental elements: Mo, W and Ti lowering oxidation and 'hot corrosion' resistance from the coatings.

Słowa kluczowe

EN

gas turbine; heat-resisting coating; nickel; Arc PVD method; chemical composition; diffusion coating; hot corrosion resistance; aluminizing

PL

turbina gazowa; powłoki żaroodporne; nikiel; metoda Arc-PVD; skład chemiczny; powłoka dyfuzyjna; odporność korozyjna; odporność korozyjna wysokotemperaturowa; aluminiowanie zanurzeniowe

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 4
• Strony: 1067--1072

Twórcy

autor

Swadźba L.

autor

Maciejny A.

autor

Mendala B.

• Silesian Technical University, Institute of Materials Science and Engineering, Katowice