INVESTIGATION OF A TURBINE DISK FAILURE

Authors
ZHANG D TAO CH
Citation
D. Zhang et Ch. Tao, INVESTIGATION OF A TURBINE DISK FAILURE, Engineering failure analysis, 5(3), 1998, pp. 229-233
Citations number
1
Categorie Soggetti
Engineering, Mechanical","Materials Science, Characterization & Testing
Journal title
Engineering failure analysis → ACNP
ISSN journal
13506307
Volume
5
Issue
3
Year of publication
1998
Pages
229 - 233
Database
ISI
SICI code
1350-6307(1998)5:3<229:IOATDF>2.0.ZU;2-Q
Abstract
The reason for the disintegration of a turbine disk in an aeroengine w as investigated by optical microscopy, electron probe composition anal ysis and transmission electron microscope diffraction analysis. The an alysis results showed that the accident was caused by lamellar defects in the steel. The lamellar defects were primarily composed of the cal cium aluminate inclusions CaO . 2Al(2)O(3) and CaO . 6Al(2)O(3) which stemmed mainly from deoxidization products in the course of steelmakin g. (C) 1998 Elsevier Science Ltd. All rights reserved.