| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5014880 | International Journal of Fatigue | 2017 | 21 Pages |
Abstract
The fracture surface of broken samples has been investigated by means of Scanning Electron Microscopy in order to identify crack initiation points and fracture mechanisms. Metallographic analyses have been carried out to measure nodule count and nodules dimensions and to identify the matrix microstructure. Statistics of extreme values and Murakami approach have been used to analyse the influence of defects on the fatigue behaviour of the materials analysed. It was found that a synergic effect between degenerate graphite particles and microshrinkage porosities reduces the fatigue strength of pearlitic ductile iron castings.
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Authors
T. Borsato, P. Ferro, F. Berto, C. Carollo,