Balyts'kyj O. Increasing of exploitation characteristic of materials for rotor-retaining ring unit of powerful turbogenerators

Українська версія

Thesis for the degree of Doctor of Science (DSc)

State registration number

0500U000225

Thesis Registration Form

0500U000225.pdf

Applicant for

Specialization

  • 05.02.01 - Матеріалознавство

26-07-2000

Specialized Academic Board

Д 35.226.02

Karpenko Physico-Mechanical Institute of NASU

Essay

There have been analysed the causes of rotor retaining rings failures on powerful turbogenerators and created scientific-technological bases of increasing of characteristics of this the high stressed details in the modern energetic. On the bases of the laboratory testing an and the manufactured improvement the new protective coatings on non corrosion resistant retaining rings and the dielectric coatings on rotor wedges have been introduced. The influence of alloy composition, anisotropy, environments, temperature and static or cyclic stress intensity on characteristics of new developed retaining ring steels has been discovered. There have been proposed the complex of prophylactic actions for the prevention of crack initiation during service.

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