Detail publikace

Low cycle fatigue behavior of Sanicro 25 steel at room and at elevated temperature elevated temperature

POLÁK, J. PETRÁŠ, R. HECZKO, M. KUBĚNA, I. KRUML, T. CHAI, G.

Originální název

Low cycle fatigue behavior of Sanicro 25 steel at room and at elevated temperature elevated temperature

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Austenitic heat resistant Sanicro 25 steel developed for high temperature applications in power generation industry has been subjected to strain controlled low cycle fatigue tests at ambient and at elevated temperature in awide interval of strain amplitudes. Fatigue hardening/softening curves, cyclic stress–strain curves and fatigue life curves were evaluated at room temperature and at 700 C. The internal dislocation structures of the material at room and at elevated temperature were studied using transmission electron microscopy. High resolution surface observations and FIB cuts revealed early damage at room temperature in the form of persistent slip bands and at elevated temperatures oxidized grain boundary cracks. Dislocation arrangement study and surface observations were used to identify the cyclic slip localization and to discuss the fatigue softening/hardening behavior and the temperature dependence of the fatigue life.

Klíčová slova

Sanicro 25 steel, Cyclic plasticity, Dislocation structure, Fatigue life, Effect of temperature

Autoři

POLÁK, J.; PETRÁŠ, R.; HECZKO, M.; KUBĚNA, I.; KRUML, T.; CHAI, G.

Rok RIV

2014

Vydáno

30. 7. 2014

Nakladatel

Elsevier

ISSN

0921-5093

Periodikum

Materials Science and Engineering A

Ročník

2014

Číslo

615

Stát

Švýcarská konfederace

Strany od

175

Strany do

182

Strany počet

7

BibTex

@article{BUT112313,
  author="POLÁK, J. and PETRÁŠ, R. and HECZKO, M. and KUBĚNA, I. and KRUML, T. and CHAI, G.",
  title="Low cycle fatigue behavior of Sanicro 25 steel at room and at elevated temperature elevated temperature",
  journal="Materials Science and Engineering A",
  year="2014",
  volume="2014",
  number="615",
  pages="175--182",
  doi="10.1016/j.msea.2014.07.075",
  issn="0921-5093"
}