Cyclic strain localization in cast nickel based superalloy INCONEL 792-5A at room temperature

• Autorzy: Petrenec M. , Man J. , Obrtlík K. , Polák J.
• Konferencja: Metody oceny struktury oraz własności materiałów i wyrobów/Sympozjum(XX;07-09.12.2005;Ustroń-Jaszowiec,Polska)
• Języki publikacji: EN

Abstrakty

EN

Cylindrical specimens of cast polycrystalline superalloy INCONEL 792-5A were cyclically strained under total strain control at room temperature up to fracture. Cyclic hardening curves were documented. Dislocation structure was studied with the technique of oriented foils in TEM. SEM was used to investigate surface relief topography. The cyclic stress-strain response is characterized by initial hardening followed by the stabilized stress response. Surface persistent slip markings and slip bands lying along {111} planes in the interior of grains cut both channels and precipitates. Experimental results concerning the surface relief and dislocation structure are used to discuss the stress-strain response.

Słowa kluczowe

EN

nickel; superalloy; cyclic strain; INCONEL 792-5A

PL

nikiel; superstop; odkształcenie okresowe; INCONEL 792-5A

• Wydawca: Oficyna Wydawnicza Politechniki Opolskiej
• Czasopismo: Zeszyty Naukowe. Mechanika / Politechnika Opolska
• Rocznik: 2005
• Tom: z. 86
• Strony: 269--274
• Opis fizyczny: Bibliogr. 11 poz., il., wykr.

Twórcy

autor

Petrenec M.

• Institute of Physics of Materials, AS CR, Žižkova 22, 616 62 Brno

autor

Man J.

• Institute of Physics of Materials, AS CR, Žižkova 22, 616 62 Brno

autor

Obrtlík K.

• Institute of Physics of Materials, AS CR, Žižkova 22, 616 62 Brno

autor

Polák J.

• Institute of Physics of Materials, AS CR, Žižkova 22, 616 62 Brno

Bibliografia

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• [3] OBRTLIK., LUKAS P., POLAK J.: Low cycle fatigue of superalloy single crystals CMSX-4. In: Law Cycle Fatigue and Elasto-Plastic Behaviour of Materials (LCF 4), K.-T. Rie and P.D. Portella (Eds.), Oxford, Elsevier Science Ltd, 1998, pp. 33-38.
• [4] JIAO F.,ZHU J., WAHI R.P., CHEN H., CHEN W., WEVER H.:Low cycle fatigue behaviour of IN 738LC at 1223 K. In: Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials-3 (LCF 3), K.-T. Rie (Ed.), London and New York, Elsevier Applied Science, 1992, pp. 298-303.
• [5] OBRTLIK K., MAN J., POLAK J.: Room and high temperature low cycle fatigue of INCONEL 713 LC. In: Proceedings of 7th European Conference on Advanced Materials and Processes (EUROMAT 2001), Associazione ltaliana di Metallurgia, Milana, 2001, paper No. 894.
• [6] OBRTLIK K., MAN J., PETRENEC M., POLAK J.: Unavove chovani niklove superslitiny INCONEL 713 LC pri pokojove teplote.ln: Degradacia vlastnosti konstrukcnych materialov unavou, Zilina, EDIS, 2001, pp. 62-66.
• [7] PETRENEC M., OBRTLIK K., POLAK J.: Dislokacni struktura unavove zatezovane superslitiny Inconel 713 LC pri pokojove a zvysenych teplotach. Materials Engineering, 9, 2002, 146-149.
• [8] OBRTLIK K., MAN J., PETRENEC M., POLAK J.: Cyclic strain localisation in Inconel 713 LC at room and high temperature. In: Proceedings of 8th International Fatigue Congress (Fatigue 2002), Vol. 2/5, A.F. Blom (Ed.), West Midlands (UK), EMAS, 2002, pp. 963-970.
• [9] PETRENEC M., OBRTLIK K., POLAK J., MAN J., HRBAĆEK K.: Fatigue behaviour of cast nickel based superalloy INCONEL 792-5A at room temperature. Materials Engineering, 12, 2005, 21-24.
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• [11] OBRTLIK K., POLAK J., KOMÓRKA J.: Dislocation structures in polycrystalline copper cycled at low plastic strain amplitudes. Scripta Metall. Mater., 28, 1993, 495-499.