[Kovove materialy - Metallic materials]
    Thu - March 28, 2024 - 16:06 No. of hits : 1736423 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 35 (1997), Issue 6

Synergy effects of static and cyclic stress on creep of steel EI 268 S (in Slovak)
PUSKAR, A., SUFLIARSKY, P.
vol. 35 (1997), no. 6, pp. 382 - 391

Abstract
This work deals with a synergy effect of cyclic stress part on creep behaviour of stainless steel EI 268 S. Due to the effect of the cyclic stress part with frequency 20 kHz, the time to fracture is shortened, the stable creep rate increases, and the value of apparent activate energy of creep loading is changed slightly. The cyclic stress part has a significant influence on the lifetime. The higher is this part, the shorter is the total lifetime. The activate energy for pure creep was 385 kJ/mol, while at the stress 340 ± 45 MPa and temperature 500 °C, it was 361,7 kJ/mol.

Key words
cyclic stress, creep behaviour, stainless steel EI 268 S

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
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