Publication detail
Fractography of Fish-eye Cracks in Nitride Steel Specimens: Assessment of Residual Fatigue Life
SLÁMEČKA, K. KIANICOVÁ, M. POKLUDA, J.
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
Language
en
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.
Keywords in English
Fractography, fish-eye cracks, striations, linear elastic fracture mechanics, nitrided steel
Released
2011-08-01
Location
Opole
ISSN
1429-6055
Journal
Zeszyty naukowe politechniki Opolskiej seria Mechanika
Volume
z98
Number
1
Pages from–to
1–10
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"
}