TEM studies of <001> oriented single crystal CM186LC superalloy creep deformed at 750 degrees centigrade.

• Autorzy: Dubiel B. , Grodowski P. , Czyrska-Filemonowicz A.
• Konferencja: 5th Polish-Japanese Symposium on Advanced Methods of Materials Characterization, Niedzica, 28.08-2.09.2004
• Języki publikacji: EN

Abstrakty

EN

The microstructure of creep tested CM186LC Ni-base single crystal alloy was studied to assess its suitability for use in the gas turbine environment. Creep tests were conducted at 750 degrees C and at stresses 560 and 675 MPa up to 11440 h. Microstructure of fractured and terminated specimens was investigated in detail. TEM microstructural analysis revealed dislocations in gamma channels piled-up mainly at the gamma/gamma' interfaces. Beside dislocations in gamma channels, shearing of gamma' particles by partial dislocations separated by stacking faults was observed.

Słowa kluczowe

EN

TEM; superalloy

PL

TEM; superstop

• Wydawca: Komitet Nauki o Materiałach PAN
• Czasopismo: Archives of Materials Science
• Rocznik: 2005
• Tom: Vol. 26, nr 1-2
• Strony: 137--144
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Dubiel B.

• Academy of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Grodowski P.

• Academy of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Czyrska-Filemonowicz A.

• Academy of Mining and Metallurgy, Al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

• [1] I.M. Wilcock, P. Lukáš, M. Maldini, J. Klabbers, B. Dubiel, M.B. Henderson, Proc. of 7th Int. Conf. on Materials for Advanced Power Engineering, 30.09-2.10.2002, Liege, Belgium, Lecomte-Beckers J. et al (eds), Schriften des Forschungszentrum Jülich, Energy Technology, 21, 149 (2002).
• [2] B. Dubiel, A. Czyrska-Filemonowicz, Materials Chemistry and Physics, 81, 427 (2003)
• [3] P. Сaron, Y. Ohta, Y.G. Nаkagawа, Т. Кhan, in: D.N. Duhl et al (eds.), Superalloys 1988, Seven Springs Mountain Resort, Champion, Pennsylvania, USA, TMS, p. 215 (1988).
• [4] D. Danсiu, PhD Thesis, AGH University of Science and Technology, Kraków, 2003.
• [5] R.R. Keller, H.J. Maier, H. Murghrabi, Scripta Mat., 28, 23 (1993).
• [6] D.M. Knowles, S. Gunturi, Mater. Sei. Eng. A, 328, 223 (2002).