Hydrogen fracture maps for sheared-edge-controlled hydrogen-delayed fracture of 1180 MPa advanced high-strength steels

•Hydrogen-induced delayed fracture (HIDF) was studied using shear-cut U-bend specimens.•Maps identified the conditions that cause HIDF.•HIDF was controlled by the sheared edge and required a critical amount of plastic strain.•Differing response was related to the microstructure interaction with the strains introduced by shearing.•A hydrogen enhanced plasticity (HEP) mechanism caused HIDF.