Evaluation of some general features of long-term weakening for several classes of heat resisting materials

Considered is the improvement in the effectiveness of prediction of long-term strength characteristics. It is shown that the drop in long-term strength during a limited interval of time may serve as a characteristic of the long-term weakening of the individual classes of refractory materials. Allowance for this characteristic may contribute to greater accuracy of the method for rapid evaluation of long-term strength ranges