Creep behavior and a deformation mechanism based creep rate model under high temperature and low stress condition for single crystal superalloy DD5

This work reports the investigation on creep behavior under high temperature and low stress condition for single crystal superalloy DD5 and the subsequent establishment of a deformation mechanism based creep rate model. The γ/γ′ microstructure evolution and the precipitate-dislocation interaction mode were investigated systematically during creep test at 1100 °C and 120 MPa, for a better understanding of underlying creep deformation...