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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.
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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
2022-01-26 18:30:09
@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}},
  keywords     = {{frequency effects; high strain fatigue; crack closure}},
  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}},
}