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Proceedings Paper

Determination of the fatigue limit of an austempered ductile iron using thermal infrared imagry
Author(s): Alberto L. Geraci; Guido La Rosa; Antonino Risitano; Maurice Grech
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Paper Abstract

Previous work by the authors showed that the endurance limit of specimens, or mechanical components, can be predicted using thermal infrared imagery. The new technique enables the determination of the fatigue strength limit in a comparatively short period of time (few thousands cycles), and using very few specimens (theoretically only 1). The present work applies this technique to rotating-bending test specimens of austempered ductile iron, an alloy whose fatigue limit is, due to the high scatter dispersion of the data points and the long testing period required, generally difficult to determine by the traditional technique. This material exhibited higher fatigue strength than the familiar nodular cast iron. This was confirmed by the results derived from the traditional Wohler test and the new technique, and supported by the data gathered from literature.

Paper Details

Date Published: 1 December 1995
PDF: 12 pages
Proc. SPIE 2646, Digital Photogrammetry and Remote Sensing '95, (1 December 1995); doi: 10.1117/12.227882
Show Author Affiliations
Alberto L. Geraci, Univ. of Catania (Italy)
Guido La Rosa, Univ. of Catania (Italy)
Antonino Risitano, Univ. of Catania (Italy)
Maurice Grech, Univ. of Malta (Italy)


Published in SPIE Proceedings Vol. 2646:
Digital Photogrammetry and Remote Sensing '95

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