**6. Conclusions**

The present study characterized fatigue behavior of metastable austenitic stainless steels in the LCF, HCF and VHCF regimes at two temperatures, i.e. ambient temperature and 300 ◦C. Based on the acquired results, the following conclusions were drawn:


**Author Contributions:** M.S. planned the experimental design and wrote the majority of the present paper; A.B., T.D., R.S. and A.S. realized experimental investigations and analysis of the given results; M.S. and T.B. supervision the work.

**Funding:** This research was funded by Federal Ministry for Economic Affairs and Energy (BMWi), Germany and the German Research Foundation (DFG).

**Acknowledgments:** The authors thank BMWi as well as the DFG for financial support as part of the CRC 926 project number 172116086 "Microscale Morphology of Component Surfaces".

**Conflicts of Interest:** The authors declare no conflict of interest.
