At the Institute of Materials Science and Engineering an ultrasonic testing facility (UTF) for the fatigue assessment in the very high cycle fatigue (VHCF) regime was developed. The UTF allows to control the test and to measure process parameters like generator power and specimen temperature. In load increase tests (LIT), the critical stress amplitude leading to a first rise of the measured physical values is determined and can be used to identify suitable amplitudes for single step tests in the VHCF regime. The individual design of the UTF allows a defined interruption of the fatigue experiment for detailed microscopic investigations. © 2010 Published by Elsevier Ltd.
Koster, M., Wagner, G., & Eifler, D. (2010). Cyclic deformation behavior of a medium carbon steel in the VHCF regime. In Procedia Engineering (Vol. 2, pp. 2189–2197). https://doi.org/10.1016/j.proeng.2010.03.235