ABSTRACT
In chapter 8 it was mentioned that the tests of the creep and long-term strength of elements of metallic structures in aggressive media at high temperatures show that the aggressive media usually greatly impair the mechanical characteristics of the metals. This applies in particular to thin wall structural members. Difficulties in studying the effect of the aggressive medium on the creep and long-term strength of the metals are associated with the shortage of systematic experiment studies. Therefore, in the experiments it is necessary to construct mathematical models for the qualitative and quantitative description of the softening effect of the medium. In this chapter the description of the deformation and long-term fracture of metals under the simultaneous effect of external mechanical loading and the aggressive environment is based on the proposed probabilistic model. The main results of the investigations, presented in this chapter, were published in [128, 129, 160, 166, 167, 184, 185, 438, 452].
