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Author Shulga, A. V.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ AGING ♦ AUSTENITIC STEELS ♦ AUTORADIOGRAPHY ♦ BORON ♦ CARBON ♦ ELECTRODES ♦ FERRITIC STEELS ♦ HEAT TREATMENTS ♦ MARTENSITIC STEELS ♦ MECHANICAL PROPERTIES ♦ METALLOGRAPHY ♦ MICROSTRUCTURE ♦ NUCLEAR FUELS ♦ POWDERS ♦ STAINLESS STEELS ♦ TEMPERATURE RANGE 0273-0400 K ♦ TEMPERATURE RANGE 0400-1000 K ♦ TUBES
Abstract This article presents the results of comparative studies of mechanical properties and microstructure of nuclear fuel tubes and semifinished stainless steel items fabricated by consolidation of rapidly quenched powders and by conventional technology after high-temperature exposures at 600 and 700°C. Tensile tests of nuclear fuel tube ring specimens of stainless austenitic steel of grade AISI 316 and ferritic–martensitic steel are performed at room temperature. The microstructure and distribution of carbon and boron are analyzed by metallography and autoradiography in nuclear fuel tubes and semifinished items. Rapidly quenched powders of the considered steels are obtained by the plasma rotating electrode process. Positive influence of consolidation of rapidly quenched powders on mechanical properties after high-temperature aging is confirmed. The correlation between homogeneous distribution of carbon and boron and mechanical properties of the considered steel is determined. The effects of thermal aging and degradation of the considered steels are determined at 600°C and 700°C, respectively.
ISSN 10637788
Educational Use Research
Learning Resource Type Article
Publisher Date 2017-12-15
Publisher Place United States
Journal Physics of Atomic Nuclei
Volume Number 80
Issue Number 10


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