Detail publikace

Microfractography of Fish-Eye Fractures in Nitrided Steel

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

Anglický název

Microfractography of Fish-Eye Fractures in Nitrided Steel

Typ

Článek recenzovaný mimo WoS a Scopus

Jazyk

en

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.

Klíčová slova anglicky

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

Vydáno

2011-07-15

Místo

Brno

ISSN

0009-2770

Časopis

CHEMICKE LISTY

Ročník

105

Číslo

S

Strany od–do

721–724

Počet stran

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"
}