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Title: Influence of non-metallic inclusions on the fatigue properties of heavily cold drawn wires
Authors: Lambrighs, Kasper
Verpoest, Ignace
Verlinden, Bert
Wevers, Martine #
Issue Date: 15-Mar-2010
Publisher: Elsevier Ltd.
Host Document: Procedia Engineering vol:2 issue:1 pages:173-181
Conference: 10th International Fatigue Congress edition:10 location:Prague, Czech Republic date:6-11 June 2010
Article number: CF100034
Abstract: The influence of non-metallic inclusions on the fatigue properties of heavily cold drawn steel wires is studied. Through a fractography study it is possible to link the inclusion properties, such as chemical composition, geometry, size and location, to the fatigue properties.

Comparing the Stress Intensity Factors (SIF) of non-metallic inclusions to the threshold value for long crack growth shows that the defect size that should be used to calculate the SIF is larger than the inclusion size itself. This is validated using Scanning Electron Microscopy (SEM) in combination with a Focused Ion Beam (FIB). This SEM/FIB study shows that the region around non-metallic inclusions is characterized by alterations in the microstructure that should be taken into account. It is calculated that the SIF increases with 16.5 +/- 3.6 % compared to Murakami’s way of calculating SIF of non-metallic inclusions.
Publication status: published
KU Leuven publication type: IC
Appears in Collections:Department of Materials Engineering - miscellaneous
Mechanical Metallurgy Section (-)
Physical Metallurgy and Materials Engineering Section (-)
# (joint) last author

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