Dimensional and structural stability of EhG35 zirconium alloy articles under reactor irradiation

Published 1995 | Version v1

Miscellaneous Open

Aimed to find the explanation of high dimensional stability under irradiation for alloy Eh635 a study was made into microstructural changes of the alloy in a fast neutron flux. Microstructural studies of the multicomponent alloy type Eh635 (Zr-1.3%Sn-1.0%Nb-0.4%Fe) prior to and after irradiation showed that the structure becomes stable rather easily under neutron radiation effects. Dislocation loops of -type are found to dominate in irradiated alloy while dislocation loops of type are practically absent. The last-mentioned type is known to be responsible for radiation growth and creep and predominant in Zn-Nb alloys and Zircaloys. 8 refs., 5 figs., 2 tabs

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Original title (Russian): Размерная и структурная стабильност' изделий из циркониевого сплава Eh635 в условиях реакторного облучения

Country of Publication: Russian Federation
Country of Input or Organization: Russian Federation
INIS RN: 28017361
Subject category: S36: MATERIALS SCIENCE;
Descriptors DEI: CREEP; DISLOCATIONS; FLUX DENSITY; FUEL CANS; IRON ADDITIONS; MICROSTRUCTURE; NEUTRON FLUENCE; NEUTRON FLUX; NIOBIUM ALLOYS; PHYSICAL RADIATION EFFECTS; QUATERNARY ALLOY SYSTEMS; REACTOR CHANNELS; TIN ALLOYS; ZIRCONIUM BASE ALLOYS
Descriptors DEC: ALLOY SYSTEMS; ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; LINE DEFECTS; MECHANICAL PROPERTIES; RADIATION EFFECTS; RADIATION FLUX; REACTOR COMPONENTS; TRANSITION ELEMENT ALLOYS; ZIRCONIUM ALLOYS