Effect of radial hydrides on fracture behavior of Zr-2.5 Nb pressure tube material

AK Bind, G Avinash, S Sunil, RK Sharma… - Journal of Nuclear …, 2024 - Elsevier
The fracture behavior of Zr-2.5 Nb pressure tube (PT) material containing radial hydrides
with hydrogen concentrations between 30 and 300wppm was evaluated between 25 and …

Effect of radial hydride on room temperature fracture toughness of Zr-2.5 Nb pressure tube material

A Gopalan, AK Bind, S Sunil, TN Murty… - Journal of Nuclear …, 2021 - Elsevier
The effect of radial hydride on the room temperature fracture toughness of the Zr-2.5 Nb
pressure tube material with 100% radial hydrides and hydrogen content up to 320wppm was …

FE2 methodology for discrete cohesive crack propagation in heterogenous materials

W Chen, VBC Tan, X Zeng, P Li - Engineering Fracture Mechanics, 2022 - Elsevier
To study the discrete crack growth of heterogeneous materials, a dual-scale discrete fracture
calculation method is proposed in this paper. An equivalent cohesive energy criterion is …

Anisotropy and variability in thermal creep behaviour of Zr-2.5 Nb pressure tube

V Patel, A Gopalan, HK Khandelwal, N Keskar… - International Journal of …, 2022 - Elsevier
Abstract The Zr-2.5 Nb alloy pressure tubes of Indian Pressurized Heavy Water Reactors
were manufactured from double melted ingots initially and subsequently from quadruple …

Microstructure and fracture toughness of 850° C quenched and aged Zr-2.5 Nb alloy

HK Khandelwal, RN Singh, R Mythili - Journal of Nuclear Materials, 2024 - Elsevier
Abstract The Zr-2.5 Nb alloy pressure tubes manufactured by Water Quenched and Aged
(WQA) fabrication route has reportedly exhibited superior resistance against in-reactor …

Study of the impact of hydrides on the fracture toughness of Zr-2.5 Nb alloy

R Janulionis, G Dundulis - Nuclear Engineering and Design, 2024 - Elsevier
Hydrogen absorption and hydride formation in zirconium (Zr) alloys is a well-known issue
and has been extensively studied in the past. Hydrogen has an impact not only on the …

Effect of hydrogen isotopes on tensile and fracture properties of Zr–2.5 Nb pressure tube material

AK Bind, RN Singh - International Journal of Fracture, 2021 - Springer
The majority of data reported in open literature on hydride embrittlement of Zr alloys is based
on hydrogen not deuterium which evolves during aqueous corrosion of in-core components …

Effect of Temperature and Irradiation on the Hardness of δ-Zr Hydride

IJS Cherubin, F Long, M Topping, IGR Santos… - 2023 - asmedigitalcollection.asme.org
During operation in nuclear reactors, zirconium core components undergo a slow process of
hydrogen pickup, followed by the onset of the precipitation of zirconium hydrides. These …

Effect of multiple arc melting of ingots on thermal creep behaviour of Zr–2.5 Nb Pressure Tube

RN Singh, V Patel, A Gopalan… - Transactions of the Indian …, 2022 - Springer
Abstract Tubes made of Zr–2.5 Nb alloy in cold-worked and stress relived condition are used
as pressure boundary component called pressure tube or coolant tube in Pressurized Heavy …

Load separability and ηpl factor determination for CT specimen of Zr-2.5 Nb pressure tube material

AK Bind, RN Singh - Engineering Fracture Mechanics, 2020 - Elsevier
For fracture testing of pressure tubes, specimens are machined directly from the pressure
tube without disturbing its curvature. The compact tension (CT) specimens thus obtained are …