Published December 2001 | Version v1
Journal article Metadata-only

Comparison of the efficiency of the carbon steel passivation in solutions of hydrazine and oxygen-containing water

Creators

  • 1. VNIIAEhS, Moscow (Russian Federation)
  • 2. EhNITs VNIIAEhS, Ehlektrogorsk, Moskovskaya Oblast' (Russian Federation)

Description

Operation conditions of the secondary circuit of NPP with WWER under hydrazine-ammonia water conditions are considered. Specifically, the description and results of test bench tests of steel 20 samples in oxygen- and hydrazine-containing medium in reference to formation of a magnetite protective film on metal surface are presented. It is shown that clean surface of steel 20 after being allowed to stand for 44 h in oxygen- or hydrazine-containing water at 160 deg C is covered with a magnetite protective film. The films are not destroyed for idle period up to 30 days. In case of longer idle periods it proved advisable to use oxygen in concentration up to 50 μg/l

Abstract (Russian)

Исследуются условия работы второго контура АЭС с ВВЭР на гидразинно-аммиачном водном режиме. В частности, приводятся описание и результаты стендовых испытаний образцов из стали 20 в условиях кислород- и гидразинсодержащей среды по образованию на поверхности металла защитной пленки из магнетита. Показано, что чистая поверхность стали 20 после 44-часовой выдержки в кислород- или гидразинсодержащей воде при 160 град С покрывается защитной пленкой магнетита. Эти пленки не разрушаются в течение простоя до 30 суток. В случае более длительных простоев целесообразно применять кислород с концентрацией до 50 мкг/литр

Additional details

Additional titles

Original title (Russian)
Сравнение эффективности пассивации углеродистой стали в растворах гидразина и кислородсодержащей воде

Publishing Information

Journal Title
Teploehnergetika
Journal Issue
no.12
Journal Page Range
p. 31-36
ISSN
0040-3636
CODEN
TPLOA5

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
34045236
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Descriptors DEI
AQUEOUS SOLUTIONS; CARBON STEELS; EFFICIENCY; HYDRAZINE; IMAGES; MAGNETITE; NUCLEAR POWER PLANTS; OXYGEN; PASSIVATION; PROTECTIVE COATINGS; SECONDARY COOLANT CIRCUITS; TEST FACILITIES; TESTING; WWER TYPE REACTORS
Descriptors DEC
ALLOYS; CARBON ADDITIONS; COATINGS; COOLING SYSTEMS; DISPERSIONS; ELEMENTS; ENERGY SYSTEMS; ENRICHED URANIUM REACTORS; HOMOGENEOUS MIXTURES; IRON ALLOYS; IRON BASE ALLOYS; IRON ORES; MINERALS; MIXTURES; NITROGEN COMPOUNDS; NONMETALS; NUCLEAR FACILITIES; ORES; OXIDE MINERALS; POWER PLANTS; POWER REACTORS; PWR TYPE REACTORS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; SOLUTIONS; STEELS; THERMAL POWER PLANTS; THERMAL REACTORS; TRANSITION ELEMENT ALLOYS; WATER COOLED REACTORS; WATER MODERATED REACTORS

Optional Information

Notes
5 refs., 7 figs., 4 tabs.