DAMAGE EVOLUTION OF THE ALLOY IN 738-LC A T HIGH-TEMPERATURE LOW-CYCLE FATIGUE

Authors
FRENZ H KLINGELHOFFER H
Citation
H. Frenz et H. Klingelhoffer, DAMAGE EVOLUTION OF THE ALLOY IN 738-LC A T HIGH-TEMPERATURE LOW-CYCLE FATIGUE, Materialwissenschaft und Werkstofftechnik, 27(12), 1996, pp. 601-607
Citations number
5
Categorie Soggetti
Material Science
Journal title
Materialwissenschaft und Werkstofftechnik → ACNP
ISSN journal
09335137
Volume
27
Issue
12
Year of publication
1996
Pages
601 - 607
Database
ISI
SICI code
0933-5137(1996)27:12<601:DEOTAI>2.0.ZU;2-Z
Abstract
Interrupted Low-Cycle-Fatigue tests have been carried out with IN 738 LC at 850 degrees C. The specimens were extensively examined by SEM to quantify the evolution of fatigue damage. Surface crack nucleation at oxidized grain boundaries occured during the whole experiments. The c oalescence of cracks was the dominant mechanism which lead to macro cr ack evolution and the final fracture.