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Information × Registration Number 0220U100907, 0119U101748 , R & D reports Title "Extension of the service life of the metal for pipe lines of second circuit for power units of WWER-1000 for near 20 and more years" popup.stage_title Head Mitrofanov Anatoliy S., Кандидат технічних наук Registration Date 29-01-2020 Organization National Science Center "Kharkiv Institute of Physics and Technology" popup.description2 It is shown that the probable cause of corrosion fatigue cracks on the outer metal surface of heat transfer tubes can be the inclusion of titanium nitride, which are formed during the metallurgical process. Silicon carbide, which is used for grinding the surface of pipes, is not excluded. Under the influence of working factors in combination with the structural feature of the arrangement of the collectors of the PGV-1000 steam generators and the spacer elements of the bundles of heat exchange pipes, defects on the outer surface of the pipes are formed mainly under the spacer elements. Product Description popup.authors Vasylenko Ruslan L. Voyevodin Viktor M. GOZHENKO SERHІI V. Krainyuk Yevgen O. Lisna Valentyna G. Mischenko Pavlo O. Mytrofanov Anatoliy S. Savchenko Volodymyr I. popup.nrat_date 2020-04-02 Close