@article{GeilenSch{\"o}nherrKleinetal.2020,
  author    = {Geilen, Max Benedikt and Sch{\"o}nherr, Josef Arthur and Klein, Marcus and Leininger, Dominik Sebastian and Giertler, Alexander and Krupp, Ulrich and Oechsner, Matthias},
  title     = {On the Influence of Control Type and Strain Rate on the Lifetime of 50CrMo4},
  journal   = {Metals},
  volume    = {10},
  number    = {11},
  issn      = {2075-4701},
  doi       = {10.3390/met10111458},
  institution = {Fakult{\"a}t IuI},
  pages     = {1458},
  year      = {2020},
  abstract  = {In this study, we investigate the influence of control type and strain rate on the lifetime of specimens manufactured from 50CrMo4. This influence is described by a strain rate dependent method that uses cyclic stress strain curves to correct displacement-controlled cyclic test results. The objective of this correction is to eliminate the stress related differences between displacement-controlled cyclic test results and force-controlled cyclic test results. The method is applied to the results of ultrasonic fatigue tests of six different combinations of heat treatment, specimen geometry (notch factor) and atmosphere. In a statistical analysis, the corrected results show an improved agreement with test results obtained on conventional fatigue testing equipment with similar specimens: the standard deviation in combined data sets is significantly reduced (p = 4.1\%). We discuss the literature on intrinsic and extrinsic strain rate effects in carbon steels.},
  language  = {en}
}