Publication:
Structural features ensuring the increase of service characteristics of high-nickel steels for pressure vessels of prospective energy-generation reactors

Дата
2022
Авторы
Kuleshova, E. A.
Isaenkova, M. G.
Krymskaya, O. A.
Minushkin, R. A.
Journal Title
Journal ISSN
Volume Title
Издатель
Научные группы
Организационные подразделения
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Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
Выпуск журнала
Аннотация
Complex structure studies and mechanical tests of low carbon Ni–Cr–Mo–V steels with low and high nickel content (low-Ni and high-Ni steels) were performed. Mechanical tests showed that high-Ni steels in initial state are characterized by higher strength properties and lower values of critical temperature of brittleness in comparison with low-Ni steels. Estimation of input of various structural elements in ensuring yield strength and brittle fracture stress (which is connected with critical temperature of brittleness) was performed. It was shown that increased strength characteristics of high-Ni steels are determined mostly by higher density of nanoscale carbide precipitations and dislocations. It was also shown that lower critical temperature of brittleness of high-Ni steels is associated with lower width of substructural blocks and, consequently, with higher number of barriers to brittle transcrystalline crack propagation. © 2022
Описание
Ключевые слова
Base metal , Carbides , Critical temperature of brittleness , Dislocations , Dispersity of structure , Nickel content in steel , Reactor pressure vessel steel , Structural features , Yield strength
Цитирование
Structural features ensuring the increase of service characteristics of high-nickel steels for pressure vessels of prospective energy-generation reactors / Kuleshova, E.A. [et al.] // International Journal of Pressure Vessels and Piping. - 2022. - 200. - 10.1016/j.ijpvp.2022.104845
URI
https://www.doi.org/10.1016/j.ijpvp.2022.104845
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85143047826&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000892616500004
 https://openrepository.mephi.ru/handle/123456789/27703
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