creepfatigue
Creepfatigue is a damage and failure mechanism that occurs when a material is subjected to cyclic loading at elevated temperatures, such that time-dependent creep deformation interacts with fatigue processes. The result is accelerated damage accumulation and shorter life than would be predicted by high- or low-temperature fatigue alone.
Creepfatigue typically arises in components that experience repeated load cycles at high temperature, often with hold
Mechanisms of creepfatigue involve the coupling of cyclic plasticity and creep deformation. During load cycles, creep
Testing for creepfatigue uses specialized experiments with controlled temperature, loading amplitude, and dwell times to measure
Materials prone to creepfatigue include nickel-based superalloys and high-temperature steels. Mitigation focuses on improving creep resistance,