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High-temperature fatigue crack growth in Inconel 718 subjected to high strain amplitudes

Andersson, Michael LU ; Persson, Christer LU and Melin, Solveig LU (2006) In Fatigue & Fracture of Engineering Materials & Structures 29(11). p.863-875
Abstract
Fatigue crack growth experiments in Inconel 718 subjected to high strain amplitudes at 650 degrees C have been conducted. In the study the effects of load amplitude, ratio and frequency have been investigated. It was found that crack growth is a mixture of cyclic and time dependent mechanisms, depending on the load frequency. The load frequency was also found to have a strong influence on the crack growth rate. Also, crack closure was found to play an important role. By using an effective F-integral and including a frequency compensation term it was possible to summarize crack growth data into an empirical life prediction law, which seems to be in reasonable agreement with data from other studies.
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
frequency effects, high strain fatigue, crack closure
in
Fatigue & Fracture of Engineering Materials & Structures
volume
29
issue
11
pages
863 - 875
publisher
Wiley-Blackwell
external identifiers
  • wos:000241329400001
  • scopus:33749337867
ISSN
1460-2695
DOI
10.1111/j.1460-2695.2006.01041.x
language
English
LU publication?
yes
id
f4da8d00-f370-4ec8-9c3a-a64f5d5d18ca (old id 388075)
date added to LUP
2016-04-01 11:48:13
date last changed
2021-02-17 04:14:51
@article{f4da8d00-f370-4ec8-9c3a-a64f5d5d18ca,
  abstract     = {Fatigue crack growth experiments in Inconel 718 subjected to high strain amplitudes at 650 degrees C have been conducted. In the study the effects of load amplitude, ratio and frequency have been investigated. It was found that crack growth is a mixture of cyclic and time dependent mechanisms, depending on the load frequency. The load frequency was also found to have a strong influence on the crack growth rate. Also, crack closure was found to play an important role. By using an effective F-integral and including a frequency compensation term it was possible to summarize crack growth data into an empirical life prediction law, which seems to be in reasonable agreement with data from other studies.},
  author       = {Andersson, Michael and Persson, Christer and Melin, Solveig},
  issn         = {1460-2695},
  language     = {eng},
  number       = {11},
  pages        = {863--875},
  publisher    = {Wiley-Blackwell},
  series       = {Fatigue & Fracture of Engineering Materials & Structures},
  title        = {High-temperature fatigue crack growth in Inconel 718 subjected to high strain amplitudes},
  url          = {http://dx.doi.org/10.1111/j.1460-2695.2006.01041.x},
  doi          = {10.1111/j.1460-2695.2006.01041.x},
  volume       = {29},
  year         = {2006},
}