Low cycle fatigue behavior of a new Ni-Co base disk superalloyTMW-4M3 at 650 °C

摘要

Fatigue behavior of turbine disk alloy must be considered inengineering design and studies of such behavior under low cycle fatigue (LCF)conditions are especially important from the point-of-view of cracking andfailure of the material. The objective of this investigation was to study the LCFbehavior of TMW-4M3 1), a newly developed Ni-Co base superalloy, at 650 °Cunder different strain ranges.