Dose–time dependence of steel critical brittleness temperature for VVER-1000 vessel service life prediction

The high conservativeness of the evaluation of the service life of VVER-1000 vessels is due to the operational reliability margin and the high error in determining the initial computational data. A structural analysis of the error in critical brittleness temperature investigations is presented and t...

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Published in:Atomic energy (New York, N.Y.) N.Y.), 2011-07, Vol.110 (3), p.141-150
Main Authors: Dub, A. V., Skorobogatykh, V. N., Anosov, N. P., Zharov, V. V., Zubchenko, A. S., Piminov, V. A.
Format: Article
Language:English
Subjects:
Analysis
Brittleness
Calibration
Containers
Copper
Dependence
Hadrons
Heavy Ions
Nickel
Nuclear accidents & safety
Nuclear Chemistry
Nuclear Energy
Nuclear Physics
Nuclear radiation
Phosphorus
Physics
Physics and Astronomy
Radiation
Standard deviation
Steel
Structural analysis
Studies
Temperature
Toy industry
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cited_by cdi_FETCH-LOGICAL-c388t-2423d95bb4275d669af442d7c03b1f2ec7d78c069ea941b0a3d11d514bf4717f3
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container_end_page 150
container_issue 3
container_start_page 141
container_title Atomic energy (New York, N.Y.)
container_volume 110
creator Dub, A. V.
Skorobogatykh, V. N.
Anosov, N. P.
Zharov, V. V.
Zubchenko, A. S.
Piminov, V. A.
description The high conservativeness of the evaluation of the service life of VVER-1000 vessels is due to the operational reliability margin and the high error in determining the initial computational data. A structural analysis of the error in critical brittleness temperature investigations is presented and the factors which have a large effect on the error in constructing the dose–time dependences of the critical brittleness temperature are determined. In constructing dose–time curves, the use of the critical temperature of a calibration metal and heat-treatment regimes of calibration samples makes available and permits checking a wide range of structures that is characteristic for large blanks, makes it possible to take account of radiation embrittlement effects and radiation-stimulated reversible brittleness, decrease the error in determining the guaranteed values to T cr  ± 5°C, and eliminate the large effect of structural nonuniformity on objective predictions made for a reactor vessel.
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ispartof Atomic energy (New York, N.Y.), 2011-07, Vol.110 (3), p.141-150
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1573-8205
language eng
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source ABI/INFORM Global; Springer Nature
subjects Analysis
Brittleness
Calibration
Containers
Copper
Dependence
Hadrons
Heavy Ions
Nickel
Nuclear accidents & safety
Nuclear Chemistry
Nuclear Energy
Nuclear Physics
Nuclear radiation
Phosphorus
Physics
Physics and Astronomy
Radiation
Standard deviation
Steel
Structural analysis
Studies
Temperature
Toy industry
title Dose–time dependence of steel critical brittleness temperature for VVER-1000 vessel service life prediction
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