Garcia Trelles, E.E.Garcia TrellesEckmann, S.S.EckmannSchweizer, C.C.Schweizer2022-05-062022-05-062022https://publica.fraunhofer.de/handle/publica/41553510.1016/j.ijfatigue.2021.106573In this investigation, the fatigue and crack growth behavior of the ductile cast iron material (DCI) GJS-500 was experimentally characterized by performing isothermal low cycle fatigue (LCF) tests, out-of-phase thermomechanical fatigue (OPTMF) tests as well as low cycle fatigue tests combined with the replica testing method (LCF-R) within the temperature range RT500 °C. The studied material exhibits an embrittlement at temperatures nearby 400 °C, leading to a significant higher fatigue crack growth rate and a reduced lifetime, when compared with RT and 500 °C. A possible explanation for the observed higher fatigue crack growth rate coupled with a significant lifetime reduction, is intergranular embrittlement.enthermomechanical fatigueIntergranular embrittlementDCI GJS-500fatigue short crack growthReplica method620journal article