Page 13 - Дисертація на здобуття наукового ступеня доктора філософії

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even during operation, completely lost cohesion with the matrix and became

structurally large traps for hydrogen accumulation.

Thus, the improvement of the structure and the main functionally important

properties of the restored 12Kh1MF steel, as well as the partial reduction of the

negative consequences of its hydrogenation, give reason to believe that the service life

of the elements of TPP steam pipelines can be extended by adapting the proposed mode

of restorative heat treatment to the practice of their operation.

Keywords: steam pipeline bends, heat-resistant steel, operational degradation,

restorative heat treatment, microstructure, mechanical properties, hydrogenation,

factography sign.