The degradation processes in high loaded casts

• Autorzy: Ďuriníková E. , Belan J. , Tillová E.
• Języki publikacji: EN

Abstrakty

EN

In this work are described structural changes of jet engine DV–2 turbine blades and effect of degradation process. Turbine blades work in aggressively environs and because of that there are rate among high loaded cast stock. As an experimental material we have chose nickel superalloy ŽS6K with surface heat - resisting alitize layer. Evaluation is slant on largeness wearing over work of certain number of hour in operation. Effect working environs and overrun working temperatures is show changes measures as well as changes macrostructure of basic material blades. Evaluate is advance quantitative metallography through the medium metallographic software NIS element. Quantitative analysis evaluate thickness measures, quality control outer look and lack mixture in the seat, which is not splash, is precede by lack of near another applied protective layer. Allowance is knot on last examination in the area ratings protective heat-resisting layers and gives records for others possible ratings and experiments in this area.

Słowa kluczowe

EN

degradation process; nickel superalloy; high loaded casting; alitize layer; quantitative metallography

PL

proces degradacji; nadstop niklu; metalografia ilościowa

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 1 spec.
• Strony: 207--210
• Opis fizyczny: Bibliogr. 10 poz., rys., tab.

Twórcy

autor

Ďuriníková E.

• Depratment of Materials Engineering, Faculty of Mechanical Engireening, University of Žilina, Univerzitná 1, 010 26 Žilina, Slovak Republic

autor

Belan J.

• Depratment of Materials Engineering, Faculty of Mechanical Engireening, University of Žilina, Univerzitná 1, 010 26 Žilina, Slovak Republic

autor

Tillová E.

• Depratment of Materials Engineering, Faculty of Mechanical Engireening, University of Žilina, Univerzitná 1, 010 26 Žilina, Slovak Republic

Bibliografia

• [1] SKOČOVSKÝ, P., BOKŮVKA, O., KONEČNÁ, R., TILLOVÁ, E.: Material science for mechanical engineers, Žilina, EDIS, ŽU Žilina 2006 (in Slovak).
• [2] SKOČOVSKÝ, P., PODRÁBSKÝ T., BELAN J.: Degradacja w wyniku eksploatacji warstwy aluminiowo-krzemowej łopatek turbinowych wykonanych na bazie Ni, Archiwum Technologii Maszyn i Automatyzacji, p. 46–52, 2004.
• [3] DURAND-CHARE, M.: The Microstructure of Superalloys. Gordon & Breach Science Publishers, Amsterdam, 1997.
• [4] PODRÁBSKY, T et al..: Turbine blade structure degradation made of ŽS6K alloy during loading, In: Archiwum odlewnictwa, rocz. 4, 2004, Nr 11, Tom II, p. 117-122. ISSN 1642-5308. (in Czech).
• [5] PODRÁBSKÝ, T. et al.: The microstructual analysis of turbine blade from alloy Inconel 713 LC. Acta Metallurgica Slovaca, 2003, roč. 9, č. 3, s. 198-202. ISSN-1335-1532.
• [6] PODRÁBSKÝ T., JULIŠ M., POSPÍŠILOVÁ S., NĚMEC K., HRBÁČEK K., REK A., JONŠTA Z.: Microstructural changes of turbine disc made of INCONEL 713 LC ALLOY, Acta Metallurgica Slovaca, 11, 2005, 1 (62-67) (in Czech).
• [7] OUBRECHT, J.: The technology of Ni–base superalloy ŽS6K alitize [Záverečná práca], Vojenská akademie Antonína Zápotockého Brno, 1988 (in Slovak).
• [8] SKOČOVSKÝ, P., VAŠKO, A.: Quantitative evaluation of cast iron structure, ŽU v Žiline, EDIS, 2007 (in Slovak).
• [9] PODRÁBSKÝ T., STRÁNSKÝ K., POSPÍŠILOVÁ S., REK A., DOBROVSKÁ J., JULIŠ M.: INCONEL 713 LC heterogeneity, Acta Metallurgica Slovaca, 11, 2005, 1 (68-73) (in Czech).
• [10] Z.D. XIANG, P.K. DATTA: Codeposition of al and si on nickel base superalloys by pack cementation process, Materials Science and Engineering A356 (2003) 136-144.