Published 1998 | Version v1
Journal article Metadata-only

Weldability of the austenitic steel irradiated by neutrons

Creators

Description

Weldability of the austenitic steel radiated by neutrons is investigated. It is determined that hot cracks creation in the heat affected zone is connected with dense occupation of grains boundaries by vacation-gas pores which have dimensions of some μm. Critical distance between these pores is 2-6 of their diameters. It is probably that as a result of the additional and some alloyed elements pores are also weakened. Destruction along the grains boundaries is carried out according to the high-temperature creep mechanism

Abstract (Russian)

Исследована свариваемость облученной нейтронами аустенитной стали. Установлено, что образование горячих трещин в зоне термического влияния связано с плотным заселением границ зерен вакансионно-газовыми порами размером в несколько мкм. Критическое расстояние между этими порами составляет 2-6 диаметров пор. Возможно, что перемычки между порами в результате высокотемпературной абсорбции примесных и некоторых легирующих элементов также ослаблены. Разрушение по границам зерен происходит по механизму высокотемпературной ползучести

Additional details

Additional titles

Original title (Russian)
Svarivaemost' obluchennoj nejtronami austenitnoj stali

Publishing Information

Journal Title
Svarochnoe Proizvodstvo
Journal Issue
no.12
Journal Page Range
p. 3-9
ISSN
0491-6441
CODEN
SVAPAI

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
31034973
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CRACKS; FUEL ASSEMBLIES; FUEL CANS; GRAIN BOUNDARIES; HEAT AFFECTED ZONE; NEUTRON FLUENCE; PHYSICAL RADIATION EFFECTS; STEEL-CR16NI15MO3NB; TEMPERATURE RANGE 0400-1000 K; VACANCIES; VOIDS; WELDABILITY; WELDED JOINTS; WELDING
Descriptors DEC
ALLOYS; AUSTENITIC STEELS; CARBON ADDITIONS; CHROMIUM ALLOYS; CHROMIUM STEELS; CHROMIUM-MOLYBDENUM STEELS; CHROMIUM-NICKEL STEELS; CHROMIUM-NICKEL-MOLYBDENUM STEELS; CORROSION RESISTANT ALLOYS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; FABRICATION; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; JOINING; JOINTS; MATERIALS; MICROSTRUCTURE; MOLYBDENUM ALLOYS; NICKEL ALLOYS; NIOBIUM ADDITIONS; NIOBIUM ALLOYS; POINT DEFECTS; RADIATION EFFECTS; STAINLESS STEELS; STEELS; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS; ZONES

Optional Information

Notes
21 refs., 9 figs.