Published August 2003 | Version v1
Journal article Metadata-only

Radiation-induced phase changes in Zr alloys along long-time irradiation

Creators

  • 1. FGUP VNIINM im. akad. A.A. Bochvara, Moscow (Russian Federation)
  • 2. GUDP SF NIKIEhT, Zarechnyj, Sverdlovskaya Obl. (Russian Federation)

Description

Phase composition and structural changes are studied in irradiated alloys Zr - 2.5% Nb (Eh125) and Zr - 1.3% Sn - 1% Nb - 0.4% Fe (Eh635). The specimens are cut out of fuel channel tubes in the initial state and after irradiation for 6.3-19.3 years in RBMK-1000 and RBMK-1500 power reactors at temperatures of 290-315 deg C up to maximal damaging doses of 10.1 dpa. It is states that long-term neutron irradiation at temperatures of 290-315 deg C results in radiation-induced phase changes which are not observed in alloys Eh125 and Eh635 under ordinary thermal conditions. Specific features of these changes are mainly determined by the chemical composition and by the type of secondary phases

Abstract (Russian)

Исследовали изменения фазового состава и структуры под действием облучения в сплавах Zr - 2.5% Nb (Э125) и Zr - 1.3% Sn - 1% Nb - 0.4% Fe (Э635). Образцы вырезали из труб топливных каналов в исходном состоянии и после облучения в течение 6.3-19.3 лет в энергетических реакторах РБМК-1000 и РБМК-1500 при температурах 290-315 град С до максимальных повреждающих доз 10.1 сна. Установлено, что при длительном нейтронном облучении при температурах 290-315 град С в циркониевых сплавах Э125 и Э635 происходят радиационно-индуцированные фазовые изменения, которые в обычных термических условиях не наблюдаются. Особенности этих изменений во многом определяются химическим составом и типом вторичных фаз

Additional details

Additional titles

Original title (Russian)
Радиационно-индуцированные фазовые изменения в циркониевых сплавах при длительном облучении

Publishing Information

Journal Title
Metallovedenie i Termicheskaya Obrabotka Metallov
Journal Issue
no.8
Journal Page Range
p. 24-28
ISSN
0026-0819
CODEN
MTOMAX

Conference

Title
Russian conference. Nuclear technique materials (MAYaT-1)
Original Conference Title
Rossijskaya konferentsiya. Materialy yadernoj tekhniki (MAYaT-1)
Dates
23-27 Sep 2002
Place
Agoj (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
35081180
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHEMICAL COMPOSITION; DOSE-RESPONSE RELATIONSHIPS; FUEL CHANNELS; IGNALINA-1 REACTOR; LATTICE PARAMETERS; LENINGRAD-1 REACTOR; MICROSTRUCTURE; NEUTRON FLUENCE; PHASE STUDIES; PHYSICAL RADIATION EFFECTS; RADIATION DOSES; TEMPERATURE RANGE 0400-1000 K
Descriptors DEC
DOSES; ENRICHED URANIUM REACTORS; GRAPHITE MODERATED REACTORS; LWGR TYPE REACTORS; POWER REACTORS; RADIATION EFFECTS; REACTOR CHANNELS; REACTOR COMPONENTS; REACTORS; TEMPERATURE RANGE; THERMAL REACTORS; WATER COOLED REACTORS

Optional Information

Notes
7 refs., 9 figs., 2 tabs.