A theoretical and experimental approach to prognosis of fatigue crack growth behavior and
determination of the remaining resource of elements of constructions under the influence of
temperature and hydrogen is discussed in the paper. Kinetic fatigue fracture diagrams of
austenitic steel of 10Kh15N27T3V2MR were experimentally built and analytically described
at different temperatures in a neutral environment and in hydrogen. The threshold and
critical values of the stress intensity factor (SIF) were found. The durability of a turbine disk
was evaluated. It is found that hydrogen reduced the remaining resource of this structural
element almost by 2-3 times.
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