Chování ochranných vrstev tvořených nanášením hliníku a křemíku na niklové superslitiny

• Autorzy: Pospíšilová S. , Podrábský T.

Warianty tytułu

EN

Behaviour of protective layers created by codeposition of Al and Si on nickel-base superalloys

• Konferencja: Metody oceny struktury oraz własności materiałów i wyrobów/sympozjum ( XXII ; 6-8.XI.2007 ; Svratka, Czechy)
• Języki publikacji: CS

Abstrakty

EN

High-temperature constructional parts of aircraft engines and energy units are exposed to high dynamic stress (fatigue processes and creep) and various temperatures in dioxide-corrosion condition (hot corrosion, oxidation and erosion). The improvement of aero-engine and turbine efficiency is possible through the increase of temperature in front of turbine. This requires the use of heat-resistant and creep-resistant materials, especially nickel-base superalloys which resist mentioned effects for a limited period of time. A deposition of protective layers should improve hot corrosion resistance. This paper is focused on micro structure of protective layers created by co-deposition of Al and Si on nickel - base superalloys INCO 713 LC and INCO 738 LC after thermal and thermal-stress exposition and on microstructure of basic materials (substrates). The contribution also shows creep tests results for both superalloys with and without a protective layer.

Słowa kluczowe

EN

protective layers; codeposition; nickel-base superalloys; silicon; aluminium

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2007
• Tom: Vol. 321, z. 89
• Strony: 39--39
• Opis fizyczny: Bibliogr. 5 poz., il., tab., wykr.

Twórcy

autor

Pospíšilová S.

autor

Podrábský T.

• VUT v Brne, Fakulta strojního inženýrství, Technická 2896/2, Brno 616 69

Bibliografia

• [1] SEIFERTW.-MELZER B.: Rechnerische Auswertung von Zeitstandversuchen am Beispiel des Stahles 13CrMo4-4.15. Vortragsveranstaltung Langzeitverhalten warmfester Stähle und Hochtemperaturwerkstoffe“, Düsseldorf, 1992.
• [2] RAE C.M.F, HOOK M.S., REED R.C.: The effect of TCP morphology on the development of aluminide coated superalloys, 2005. Materials Science and Engineering, vol 396, Duben 2005.
• [3] DURAND-CHARRE M.: The Microstructure of Superalloys. Gordon & Breach Science Publishers, Amsterdam, 1997.
• [4] POSPÍŠILOVÁ S., PODRÁBSKÝ T., STRÁNSKÝ K., DOBROVSKÁ J.: Heterogeneity of Inconel 713LC and Inconel 738 LC. TMT 2006, Lloret de Mar, Španelsko.
• [5] SIMS C.T.: The Occurrence of Topologically Close-Packed Phases. In.: The Superalloys, p.259-284. Ed.: C.T.Sims and W.C. Hagel, John Wiley and Sons, N.York, 1972.