Detail publikačního výsledku

Fractographically-aided Analysis of Fish-eye Crack Growth in Nitrided Steel

SLÁMEČKA, K.; KIANICOVÁ, M.; POKLUDA, J.

Original Title

Fractographically-aided Analysis of Fish-eye Crack Growth in Nitrided Steel

English Title

Fractographically-aided Analysis of Fish-eye Crack Growth in Nitrided Steel

Type

WoS Article

Original Abstract

An analysis of the internal fish-eye crack growth in the plasma-nitrided high-strength low-alloy steel specimen has been performed. The study combines information obtained from the fractographical observation of the striations field located near the centre of the fish-eye crack on the specimen subjected to combined bending-torsion loading with the linear elastic fracture mechanics modelling of the fatigue crack propagation. The results suggest that the propagation stage constitutes only a minor part of the total fatigue life, the major part of which is spent on the fatigue crack initiation. This conclusion is consistent with the high cycle and very high cycle fatigue behaviour of specimens without any surface hardening layer.

English abstract

An analysis of the internal fish-eye crack growth in the plasma-nitrided high-strength low-alloy steel specimen has been performed. The study combines information obtained from the fractographical observation of the striations field located near the centre of the fish-eye crack on the specimen subjected to combined bending-torsion loading with the linear elastic fracture mechanics modelling of the fatigue crack propagation. The results suggest that the propagation stage constitutes only a minor part of the total fatigue life, the major part of which is spent on the fatigue crack initiation. This conclusion is consistent with the high cycle and very high cycle fatigue behaviour of specimens without any surface hardening layer.

Keywords

fish-eye, striations, fractography, nitrided steel

Key words in English

fish-eye, striations, fractography, nitrided steel

Authors

SLÁMEČKA, K.; KIANICOVÁ, M.; POKLUDA, J.

RIV year

2014

Released

09.04.2013

Location

Warsaw

ISBN

1429-2955

Periodical

Journal of Theoretical and Applied Mechanics

Volume

51

Number

2

State

Republic of Poland

Pages from

439

Pages to

446

Pages count

8

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@article{BUT96174,
  author="Karel {Slámečka} and Marta {Kianicová} and Jaroslav {Pokluda}",
  title="Fractographically-aided Analysis of Fish-eye Crack Growth in Nitrided Steel",
  journal="Journal of Theoretical and Applied Mechanics",
  year="2013",
  volume="51",
  number="2",
  pages="439--446",
  issn="1429-2955"
}