nucВестник НЯЦ РКNNC RK Bulletin1729-75161729-7885Национальный ядерный центр Республики Казахстан10.52676/1729-7885-2026-2-202-210nuc-1047Research ArticleСтатьиОЦЕНКА ПЕРСПЕКТИВ ПРИМЕНЕНИЯ БЕРИЛЛИДОВ ХРОМА (CrBe12) В КАЧЕСТВЕ МАТЕРИАЛА ДЛЯ ЛОПАТОК ПАРОВЫХ ТУРБИН, РАБОТАЮЩИХ В УСЛОВИЯХ УЛЬТРАКРИТИЧЕСКОГО ВОДЯНОГО ПАРАASSESSMENT OF THE PROSPECTS FOR THE USE OF CHROMIUM BERILLIDES (CrBe12) AS A MATERIAL FOR STEAM TURBINE BLADES OPERATING IN ULTRA-CRITICAL WATER VAPOR CONDITIONShttps://orcid.org/0000-0003-3890-8172КульсартовТ. В.KulsartovT. V.

Тимур Валиханович Кульсартов – ВНС

Алматы

Leading Researcher

Almaty

tima@physics.kzhttps://orcid.org/0000-0003-3890-8172КенжинаИ. Е.KenzhinaI. E.

Ведущий научный сотрудник

Алматы

Leading Researcher 

Almaty

kenzhina@physics.kzhttps://orcid.org/0000-0001-6642-8980ЗаурбековаЖ. А.ZaurbekovaZh. A.

Жанна Асхатовна Заурбекова – СНС

Алматы

Senior Researcher

Almaty

zzha@physics.kzhttps://orcid.org/0009-0005-0406-1374ЕлишенковА. Б.YelishenkovA. B.

Александр Борисович Елишенков – НС

Алматы

Researcher

Almaty

aleksandrelisenkov282@gmail.comhttps://orcid.org/0000-0001-8832-7443КозловскийА. Л.KozlovskiyA. I.

Артем Леонидович Козловский – начальник лаборатории

Алматы

Head of Laboratory

Almaty

kozlovskiy.a@inp.kzhttps://orcid.org/0000-0003-0304-2049ШаймерденовА. А.ShaimerdenovA. A.

Асет Абдуллаевич Шаймерденов – начальник лаборатории

Алматы

Head of Laboratory

Almaty

ashaimerdenov@inp.kzhttps://orcid.org/0000-0003-2260-4377УдарцевС. В.UdartsevS. V.

Сергей Вячеславович Ударцев – начальник лаборатории

Усть-Каменогорск

Head of Laboratory

Ust-Kamenogorsk

 

udartsevsv@ulba.kzSatbayev UniversityКазахстанSatbayev UniversityKazakhstanSatbayev University; Институт ядерной физикиКазахстанSatbayev University; Institute of Nuclear PhysicsKazakhstanИнститут ядерной физикиКазахстанInstitute of Nuclear PhysicsKazakhstanУльбинский Металлургический заводКазахстанUlba Metallurgical PlantKazakhstan20260908202602202210Copyright © Кульсартов Т.В., Кенжина И.Е., Заурбекова Ж.А., Елишенков А.Б., Козловский А.Л., Шаймерденов А.А., Ударцев С.В., 20262026Кульсартов Т.В., Кенжина И.Е., Заурбекова Ж.А., Елишенков А.Б., Козловский А.Л., Шаймерденов А.А., Ударцев С.В.Kulsartov T.V., Kenzhina I.E., Zaurbekova Z.A., Yelishenkov A.B., Kozlovskiy A.I., Shaimerdenov A.A., Udartsev S.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://journals.nnc.kz/jour/article/view/1047

В работе выполнена оценка перспектив применения бериллидов хрома (CrBe12) в качестве материала для рабочих лопаток паровых турбин, функционирующих в условиях ультракритического водяного пара. Разработана диффузионная модель окисления, учитывающая формирование Cr2O3-обогащённого защитного слоя и его возможную деградацию вследствие растрескивания. Показано, что при температуре 600 °C бериллиды хрома характеризуются существенно меньшей скоростью роста оксидного слоя, по сравнению с ферритно-мартенситными сталями и титановыми сплавами, и сопоставимой или более низкой скоростью по сравнению с никелевыми суперсплавами. Дополнительно установлено, что низкая плотность CrBe12 приводит к значительному снижению центробежных напряжений. Интегральный анализ, учитывающий коррозионные и механические факторы, показывает, что бериллиды хрома могут представлять перспективный класс материалов для применения в турбинных установках нового поколения, прежде всего в температурном диапазоне до 600–650 °C.  

При этом полученные результаты следует рассматривать как предварительные и требующие прямой проверки в условиях ультракритического водяного пара, а также при выполнении дополнительного анализа ползучести, усталостной и термоциклической стойкости.

 

This paper evaluates the prospects for using chromium beryllides (CrBe12) as a candidate material for the blades of steam turbines operating under supercritical steam conditions. A diffusion model of oxidation has been developed, taking into account the formation of a Cr2 O3 -enriched protective layer and its possible degradation due to cracking. It is shown that at a temperature of 600°C, chromium beryllides are characterized by a significantly lower oxide layer growth rate compared to ferritic-martensitic steels and titanium alloys, and a comparable or lower rate compared to nickel superalloys. It is assumed that the low density of CrBe12 leads to a significant reduction in centrifugal stresses. The analysis conducted showed that CrBe12 can be considered a promising candidate material for further research regarding components of nextgeneration steam turbine systems in a temperature range up to 650°C. However, the results obtained should be considered preliminary and require direct verification under ultra-superheated steam conditions, as well as through additional analysis of creep, fatigue, and thermal-cyclic resistance.

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The authors declare that there are no conflicts of interest present.