Journal
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
Volume 40, Issue 6, Pages 909-923Publisher
WILEY
DOI: 10.1111/ffe.12551
Keywords
biaxial fatigue; biaxial loading; crack initiation and propagation; high-temperature fatigue; steels and alloys; thermo-mechanical fatigue
Funding
- European Union (European regional development fund)
- Free State of Saxony within Saxon Excellence Initiative ADDE [ADDE-TP 15]
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The isothermal fatigue behaviour of the ferritic steel 16Mo3 was investigated at 200 and 500 degrees C under uniaxial and biaxial-planar loading. Furthermore, thermo-mechanical fatigue behaviour under uniaxial loading was characterized under in-phase (IP) and out-of-phase (OP) conditions between 200 and 500 degrees C. The fatigue lives of uniaxial and biaxial loading are in a good agreement to each other by using the distortion energy hypothesis according to von Mises. Under IP and OP thermo-mechanical loading, nearly the same lifetimes were determined. They agree well with those of the isothermal tests at 500 degrees C. A recently developed fatigue lifetime model was applied on all tests and shows an excellent agreement within a scatter of two.
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