Effect of neutron irradiation on microstructural evolution and deformation behavior of Zirconium (Zr-1Nb) alloy

被引：0

作者：

Jarugula, Rajesh ^{[1
]}

Halodova, Patricie ^{[1
]}

Zimina, Mariia ^{[1
,5
]}

Sundararaman, M. ^{[2
]}

Mala, Martina ^{[1
]}

Klouzal, Jan ^{[3
]}

Sevecek, Martin ^{[4
]}

Belac, Josef ^{[4
]}

Rehacek, Radomir ^{[4
]}

Linhart, Stanislav ^{[4
]}

机构：

[1] Res Ctr Rez Sro CVR, Dept Mat Anal, Hlavni 130, Husinec 25068, Czech Republic

[2] Indian Inst Technol Madras, Dept Met & Mat Engn, Chennai 600036, India

[3] UJV Rez As, Hlavni 130, Husinec 25068, Czech Republic

[4] ALVEL As, Stefanikova 110-41, Brno 60200, Czech Republic

[5] Univ Bristol, Tyndall Av, Bristol BS8 1TL, England

来源：

JOURNAL OF NUCLEAR MATERIALS | 2025年 / 605卷

关键词：

Zirconium alloy; Neutron irradiation; Scanning transmission electron microscopy; Dislocation loops and deformation; DISLOCATION DYNAMICS SIMULATIONS; C-COMPONENT DISLOCATIONS; PLASTIC-DEFORMATION; ZR; NB; TENSILE; LOOPS; MECHANISMS; CORROSION; PROTON;

D O I：

10.1016/j.jnucmat.2024.155596

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, a detailed investigation was carried out on the recrystallized Zirconium (Zr-1Nb) alloy, irradiated in the reactor core of Temel & iacute;n NPP (VVER-1000) for a duration of four annual cycles within the framework of the ALVEL-CEZ project. The main objective of the present work is to report the microstructural evolution, with a particular focus on the radiation-induced defects and elucidate the underlying deformation mechanisms. The combined use of electron backscattered diffraction and scanning transmission electron microscopy enables to obtain the statistical details of the microstructural changes in the irradiated material. To assess the deformation behavior of the irradiated Zr-1Nb alloy, tensile testing was conducted at room temperature and 350 degrees C and a strain rate of 2 x 10-3 s-1 along the axial direction of the tube. Transmission electron microscopy observations on the deformed sample revealed the presence of dislocation-free channels within the grains. Based on the stereographic trace analysis, it was determined that slip occurred through prismatic, pyramidal and basal channels. Additionally, the {0111} (0112) type twinning system was also found to be activated in the deformed sample.

引用

页数：12

共 48 条

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