Analysis of cyclic plastic response of heat resistant Sanicro 25 steel at ambient and elevated temperatures

0432669 - ÚFM 2015 RIV NL eng C - Konferenční příspěvek (zahraniční konf.)
Polák, Jaroslav - Petráš, Roman - Heczko, Milan - Kruml, Tomáš - Chai, G.
Analysis of cyclic plastic response of heat resistant Sanicro 25 steel at ambient and elevated temperatures.
XVII International Colloquium on Mechanical Fatigue of Metals (ICMFM17). Amsterdam: Elsevier, 2014 - (Gulagliano, M.; Vergani, L.), s. 68-73. Procedia Engineering, 74. ISSN 1877-7058.
[ICMFM 2014 International Colloquium on Mechanical Fatigue of Metals /17./. Verbania (IT), 25.06.2014-27.06.2014]
Grant CEP: GA ČR(CZ) GA13-23652S
Institucionální podpora: RVO:68081723
Klíčová slova: heat resistant steel * Sanicro 25 * cyclic plasticity * dislocation structure * effect of temperature
Kód oboru RIV: JL - Únava materiálu a lomová mechanika
http://ac.els-cdn.com/S1877705814007966/1-s2.0-S1877705814007966-main.pdf?_tid=8150a71a-543c-11e4-b10e-00000aab0f27&acdnat=1413358137_888616b4b84bb7ddf28dfaee5358a90a

Austenitic heat resistant steel Sanicro 25 developed for high temperature applications in power generation industry has been subjected to selected low cycle fatigue tests at ambient and at elevated temperature. Saturated hysteresis loops at both temperatures were analyzed to deduce the probability density distribution of the internal critical stresses and to estimate the contribution of the effective stress for different strain amplitudes. The internal structure of the material at room and elevated temperature was studied using transmission electron microscopy and the results were discussed in relation to the cyclic stress-strain response.
Trvalý link: http://hdl.handle.net/11104/0237060