SYMPOSIA PAPER Published: 01 January 2009
STP48165S

Investigation of Structural and Chemical Uniformity of Zr2.5% Nb and E635 Alloy by Radioactive Indicators

Source

The performance and structure of final nuclear zirconium alloy components is formed at all processing steps, from ingot melting and subsequent forging, quenching, pilgering, and heat treatment. The subject of this investigation was the structure of zirconium alloy ingots made by double melting in a vacuum arc furnace, and investigated by the use of radioactive indicators (RAIs). The isotopes that were used were W185 and C14, which were added in very small quantities to the charge before melting the ingot. The RAI isotopes decorate the ingot structure, and provide an opportunity to investigate the behavior of impurity levels during solidification of the molten pool, and the structure in the various types of solidification zones within the ingot. The forged material and other products were investigated using the C14 isotope. Carbon distribution data were obtained for both Zr2.5Nb and for E635 structures on both macroscopic and microscopic levels. The structures and phases in which the carbon isotope was concentrated were discovered.

Author Information

Arzhakova, Valentine
All-Russia Scientific Research Institute of Inorganic Materials, Moscow, Russia
Shikov, Alexander
All-Russia Scientific Research Institute of Inorganic Materials, Moscow, Russia
Kabanov, Alexander
All-Russia Scientific Research Institute of Inorganic Materials, Moscow, Russia
Belov, Vladimir
Chepetskiy Mechanical Plant, Glazov, Udmurtiya, Russia
Shtutsa, Mikhail
Chepetskiy Mechanical Plant, Glazov, Udmurtiya, Russia
Ziganshin, Alexander
Chepetskiy Mechanical Plant, Glazov, Udmurtiya, Russia
Kurapov, Valeriy
“Titan-Isotope” Company, Volgograd, Russia
Kurapova, Liya
“Titan-Isotope” Company, Volgograd, Russia
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Details
Developed by Committee: B10
Pages: 744–753
DOI: 10.1520/STP48165S
ISBN-EB: 978-0-8031-8007-9
ISBN-13: 978-0-8031-4514-6