Microstructure Stability and Mechanical Properties of Ultrafine-Grained Zirconium Alloy under Prolonged Thermal Exposure

Microstructure Stability and Mechanical Properties of Ultrafine-Grained Zirconium Alloy under Prolonged Thermal Exposure

التفاصيل البيبلوغرافية
Parent link:AIP Conference Proceedings
Vol. 1783 : Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016.— 2016.— [020205, 4 p.]
مؤلفون آخرون: Sharkeev Yu. P. Yury Petrovich, Eroshenko A. Yu. Anna, Uvarkin P. V. Pavel, Tolmachev A. I. Alexey, Akhmetova N. K. Nesibeli
الملخص:Title screen
The paper describes the experimental results in microstructure thermal stability and mechanical properties of ultrafine-grained zirconium alloy with 1 mass % Nb (Zr-1 mass %Nb) under prolonged thermal exposure. Ultrafinegrained zirconium alloy is produced by severe plastic deformation (SPD) method. It was proved that SPD method including multiple аbс-pressing and multi-pass rolling, as well as further pre-recrystallizing annealing enhances the formation of ultrafine-grained structures with mean element size of 0.2 [mu]m. Thermostability time interval of ultrafinegrained structure and the mechanical properties (in case of microhardness) under prolonged thermal exposure (up to 360 hours) for zirconium alloy was experimentally determined. It was proved that ultrafine-grained structure is stable at 400°С within 10 hours whilst keeping the microhardness level attained after SPD. In cases of continuous annealing time from 24 to 360 hours recrystallization processes develop intensively, followed by the decrease in microhardness and intensive growth of structure elements within the alloy.
Режим доступа: по договору с организацией-держателем ресурса
اللغة:الإنجليزية
منشور في: 2016
الموضوعات:
электронный ресурс
труды учёных ТПУ
циркониевые сплавы
пластические деформации
ультрамелкозернистые структуры
микротвердость
термическая стабильность
zirconium alloy
severe plastic deformation
ultrafine-grained structure
microhardness
thermal stability
الوصول للمادة أونلاين:http://dx.doi.org/10.1063/1.4966499
التنسيق: الكتروني فصل الكتاب
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=652796

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