Publication result detail

Fractography of Fish-eye Cracks in Nitride Steel Specimens: Assessment of Residual Fatigue Life

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

Original Title

Fractography of Fish-eye Cracks in Nitride Steel Specimens: Assessment of Residual Fatigue Life

English Title

Fractography of Fish-eye Cracks in Nitride Steel Specimens: Assessment of Residual Fatigue Life

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

An assessment of the residual fatigue life of plasma-nitrided high-strength low-alloy steel specimens has been performed. The study combines fractographical observation of the local striations field found in the centre of the fish-eye crack of the specimen subjected to combined bending-torsion loading with the linear elastic fracture mechanics modelling of the fatigue crack growth. 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 crack initiation. This conclusion is consistent with the high- and ultra-high-cycle behaviour of specimens without any surface hardening layer.

English abstract

An assessment of the residual fatigue life of plasma-nitrided high-strength low-alloy steel specimens has been performed. The study combines fractographical observation of the local striations field found in the centre of the fish-eye crack of the specimen subjected to combined bending-torsion loading with the linear elastic fracture mechanics modelling of the fatigue crack growth. 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 crack initiation. This conclusion is consistent with the high- and ultra-high-cycle behaviour of specimens without any surface hardening layer.

Keywords

Fractography, fish-eye cracks, striations, linear elastic fracture mechanics, nitrided steel

Key words in English

Fractography, fish-eye cracks, striations, linear elastic fracture mechanics, nitrided steel

Authors

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

RIV year

2012

Released

01.08.2011

Location

Opole

ISBN

1429-6055

Periodical

Zeszyty naukowe politechniki Opolskiej seria Mechanika

Volume

z98

Number

1

State

Republic of Poland

Pages from

1

Pages to

10

Pages count

10

BibTex

@article{BUT76083,
  author="Karel {Slámečka} and Marta {Kianicová} and Jaroslav {Pokluda}",
  title="Fractography of Fish-eye Cracks in Nitride Steel Specimens: Assessment of Residual Fatigue Life",
  journal="Zeszyty naukowe politechniki Opolskiej seria Mechanika",
  year="2011",
  volume="z98",
  number="1",
  pages="1--10",
  issn="1429-6055"
}