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Title: Influence of the load ratio on the threshold stress intensity factor range for heavily drawn steel wires
Authors: Lambrighs, Kasper ×
Verpoest, Ignace
Verlinden, Bert
Wevers, Martine #
Issue Date: Mar-2011
Publisher: Pergamon
Series Title: Engineering Failure Analysis vol:18 issue:2 pages:694-699
Abstract: The fatigue behavior of heavily drawn steel wires with a diameter of 175 mu m and total strain of 3.5 has been studied. A new approach is used to estimate the threshold stress intensity factor range for crack growth (Delta K-th,K-R) which is based on fatigue crack initiations at internal non-metallic inclusions. At these internal crack initiations a characteristic area is formed around the inclusion (in literature this region is called optical dark area, granularly bright facet or facet). This area corresponds to the short crack growth regime. The transition between short and long crack growth, which can be seen clearly by fractography, is used to estimate Delta K-th,K-R.
URI: 
ISSN: 1350-6307
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physical Metallurgy and Materials Engineering Section (-)
Mechanical Metallurgy Section (-)
× corresponding author
# (joint) last author

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