Experimental Investigation of Creep Behaviour of 35CrMo Steel at High-temperature

Abstract

The creep behaviour of 35CrMo steel have been investigated by high temperature creep experiments. It shows that the steady-state creep rate of 35CrMo steel under 450℃ (400 MPa, 450 MPa, 500 MPa), 500℃ (400 MPa, 450 MPa, 500 MPa) are 8.3980×10-5 h-1, 1.2223×10-4 h-1, 1.5749×10-4 h-1, 6.2995×10-4 h-1, 9.7457×10-4 h-1, 1.1975×10-3 h-1, respectively. The stress index of 35CrMo steel during creep is 2.8599. And the apparent activation energy of 35CrMo steel is 189.57 kJ/mol. The results of this study can provide some technical references for the safety management of 35CrMo steel at high-temperature.