Detail publikačního výsledku

Microfractography of Fish-Eye Fractures in Nitrided Steel

SLÁMEČKA, K.; POKLUDA, J.; BONAVENTUROVÁ, K.; ČELKO, L.

Originální název

Microfractography of Fish-Eye Fractures in Nitrided Steel

Anglický název

Microfractography of Fish-Eye Fractures in Nitrided Steel

Druh

Článek recenzovaný mimo WoS a Scopus

Originální abstrakt

The paper presents results of the micro-fractographical study of fish-eye cracks that were formed in plasma-nitrided specimens under symmetrical bending, symmetrical torsion and biaxial in-phase bending-torsion loading regimes. Analysis of the local striation field found near the inclusion in the center of the fish-eye crack together with the local roughness measurements support the hypothesis that the cracks propagate predominantly by mode I micromechanisms. Moreover, the extrapolation of the local crack growth rate curve to the overall fish-eye crack region suggests that similarly to the gigacycle fatigue, the most of the fatigue life is spent on the initiation of the interior microcrack.

Anglický abstrakt

The paper presents results of the micro-fractographical study of fish-eye cracks that were formed in plasma-nitrided specimens under symmetrical bending, symmetrical torsion and biaxial in-phase bending-torsion loading regimes. Analysis of the local striation field found near the inclusion in the center of the fish-eye crack together with the local roughness measurements support the hypothesis that the cracks propagate predominantly by mode I micromechanisms. Moreover, the extrapolation of the local crack growth rate curve to the overall fish-eye crack region suggests that similarly to the gigacycle fatigue, the most of the fatigue life is spent on the initiation of the interior microcrack.

Klíčová slova

Fractography, fish-eye cracks, bending-torsion fatigue, striations, nitrided steel

Klíčová slova v angličtině

Fractography, fish-eye cracks, bending-torsion fatigue, striations, nitrided steel

Autoři

SLÁMEČKA, K.; POKLUDA, J.; BONAVENTUROVÁ, K.; ČELKO, L.

Rok RIV

2012

Vydáno

15.07.2011

Místo

Brno

ISSN

0009-2770

Periodikum

CHEMICKE LISTY

Svazek

105

Číslo

S

Stát

Česká republika

Strany od

721

Strany do

724

Strany počet

4

BibTex

@article{BUT73471,
  author="Karel {Slámečka} and Jaroslav {Pokluda} and Kateřina {Bonaventurová} and Ladislav {Čelko}",
  title="Microfractography of Fish-Eye Fractures in Nitrided Steel",
  journal="CHEMICKE LISTY",
  year="2011",
  volume="105",
  number="S",
  pages="721--724",
  issn="0009-2770"
}