In order to understand the cyclic deformation and fracture behaviors of ZG20SiMn cast steel,the fatigue behavior of ZG20SiMn cast steel was investigared under the strain-controlled mode. The experimental results showthat under the strain-controlled loading mode,the ZG20SiMn cast steel can exhibit the cyclic strain hardening and cyclic stability,which mainly depends on the imposed total strain amplitude. For the ZG20SiMn cast steel,the relation between the reversals to failure and the elastic strain amplitud...