Experimental Study of T92 Steel Aging Rigidity Change and Its Creep Life Prediction

Rigidity is an important indicator of material aging.Careful experimental study on T92 ferritic steel rigidity change after high temperature aging is conducted.The causes of rigidity change are concluded,and T92 steel's approximate creep life is extrapolated based on rigidity method.Results show that T92 steel is able to meet the 600~650 ℃ environmental requirement imposed by USC units.