Generalized kinetic model of creep and long-term strength of metals under conditions of mixed character of creep character of creep process and nonstationary loading

A simplified limiting case of a general model which corresponds to the theory of strengthening, a principle of linear summation of damages and is a generalization of the Lepin, Sosnin, Andrade, Greham and Devis correlations is suggested. Applicability criteria of the limiting model are formulated and a correlation is established between different characters (power-mode and exponential) of creep processes and different methods (Dorn and Larsen-Miller) for description of the long-term strength