Abstract
On the basis of the concept of ductility exhaustion, a method of predicting the creep-fatigue lives with good precision has been developed for the material in the components operated at elevated temperatures, such as FBR and power boiler, in particular. Comparison of predicted lifetimes with experimental results for the FBR grade Type 316 stainless steel and for the power boiler grade Mod. 9Cr-1Mo steel has proved that the proposed method assesses the creep-fatigue life more accurately and always on the safer side than the currently popular method based on the time exhaustion concept.
