Detail publikačního výsledku

Fatigue behaviour and surface relief in ODS steels

KRUML, T.; KUBĚNA, I.; POLÁK, J.

Originální název

Fatigue behaviour and surface relief in ODS steels

Anglický název

Fatigue behaviour and surface relief in ODS steels

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

Low cycle fatigue behaviour at room temperature of two 14Cr ferritic steels with ultrafine grains and strengthened by fine oxide dispersion is studied. The two steels differ mainly in the grain size distribution (uniform and bimodal). It is shown that the bimodal grain size distribution has a detrimental effect on the fatigue life time. The rough surface relief is formed in grains bigger than 1 micrometer in diameter. Nucleation and early growth of fatigue cracks is facilitated by the surface relief which leads to important reduction of the fatigue life.

Anglický abstrakt

Low cycle fatigue behaviour at room temperature of two 14Cr ferritic steels with ultrafine grains and strengthened by fine oxide dispersion is studied. The two steels differ mainly in the grain size distribution (uniform and bimodal). It is shown that the bimodal grain size distribution has a detrimental effect on the fatigue life time. The rough surface relief is formed in grains bigger than 1 micrometer in diameter. Nucleation and early growth of fatigue cracks is facilitated by the surface relief which leads to important reduction of the fatigue life.

Klíčová slova

fatigue; 14Cr ODS ferritic steel; life time; surface relief

Klíčová slova v angličtině

fatigue; 14Cr ODS ferritic steel; life time; surface relief

Autoři

KRUML, T.; KUBĚNA, I.; POLÁK, J.

Rok RIV

2012

Vydáno

06.06.2011

ISSN

1877-7058

Periodikum

Procedia Engineering

Svazek

2011

Číslo

10

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1685

Strany do

1690

Strany počet

6

BibTex

@article{BUT72714,
  author="Tomáš {Kruml} and Ivo {Kuběna} and Jaroslav {Polák}",
  title="Fatigue behaviour and surface relief in ODS steels",
  journal="Procedia Engineering",
  year="2011",
  volume="2011",
  number="10",
  pages="1685--1690"
}