www.dtbtest.com/PDFs/ac-generator-core-failure.pdf
Description : Catastrophic failure of marine AC generator core
Problem : Co-base alloy generator core failed after overheat event
Analysis : Cobalt alloy core became highly brittle after slow cooling
from overheat condition. Brittleness was due to ordering transformation.
Resolution & Recommendations :
Use temperature sensors to ensure thermal excursions
stay below the order-disorder transition temperature.
Fiche analyse défaillance DAYTON T. BROWN METALLURGICAL LABORATORY
