[Kovove materialy - Metallic materials]
    Fri - March 29, 2024 - 13:17 No. of hits : 1736703 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 43 (2005), Issue 1

Creep resistance of single crystal superalloys CMSX-4 and CM186LC
LUKAS, P., CADEK, J., KUNZ, L., SVOBODA, M., KLUSAK, J.
vol. 43 (2005), no. 1, pp. 5 - 19

Abstract
The high resistance of single crystals of nickel-base superalloys to plastic deformation and their superior strength properties at high temperatures are mainly due to the reinforcing γ´ precipitates. The paper deals with the properties and structures of two superalloys differing in the γ/γ´ morphology. The creep resistance of the <001>, <011> and <111> oriented single crystals of superalloys CMSX-4 and CM186LC was compared on the basis of creep rupture curves, creep deformation curves and accompanying development of microstructures in the temperature interval 750 to 950°C. Further, the effect of notches on creep behaviour and the origin of creep cracks were examined.

Key words
creep, single crystal nickel base superalloys, γ/γ´distribution, notch effect

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


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