Mechanisms of hydride nucleation, growth, reorientation, and embrittlement in zirconium: A review

YJ Jia, WZ Han - Materials, 2023 - mdpi.com
Zirconium (Zr) hydrides threaten the reliability of fuel assembly and have repeatedly induced
failures in cladding tubes and pressure vessels. Thus, they attract a broad range of research …

In-situ assessment of microscale crack tip fields in zirconium

R Roy, M Topping, MR Daymond - International Journal of Mechanical …, 2024 - Elsevier
High-resolution electron backscatter diffraction (HR-EBSD) can provide an estimate of
elastic strains at a microscopic scale. Due to the need for high-quality Kikuchi patterns, HR …

Investigation of δ zirconium hydride morphology in a single crystal using quantitative phase field simulations supported by experiments

PCA Simon, LK Aagesen, AM Jokisaari… - Journal of Nuclear …, 2021 - Elsevier
In light water nuclear reactors, waterside corrosion of the cladding material leads to the
production of hydrogen, a fraction of which is picked up by the zirconium cladding and …

[HTML][HTML] Micro-mechanisms of the ductile-to-brittle transition in hydrogenated zirconium alloys: A review and a comparison analysis of experimental data and …

M Kolesnik - Engineering Failure Analysis, 2024 - Elsevier
The primary objective of this article is to gather comprehensive experimental and theoretical
data on the fracture process of hydrogenated zirconium alloys at micro-and nano-levels and …

Hydride-enhanced strain localization in zirconium alloy: A study by crystal plasticity finite element method

XD Zan, X Guo, GJ Weng - International Journal of Plasticity, 2024 - Elsevier
Hydride precipitation in zirconium (Zr) alloys leads to the deterioration of mechanical
properties in key components of nuclear reactors. However, the underlying mechanisms …

[HTML][HTML] Understanding the mechanical integrity of Zircaloy cladding with various radial and circumferential hydride morphologies via image analysis

D Woo, Y Lee - Journal of Nuclear Materials, 2023 - Elsevier
The mechanical integrity of post hydride reorientation cladding was investigated for various
amounts of charged hydrogen and their morphologies. The specimens were charged with …

Radial hydride fraction with various rod internal pressures and hydrogen contents for Zr-Nb alloy cladding tube

D Kim, D Woo, Y Lee - Journal of Nuclear Materials, 2022 - Elsevier
Hydride reorientation experiments for unirradiated Zr-Nb alloy cladding tubes under multi-
axial stress states induced by internal pressurization were performed with peak cladding …

Modelling the interactions of zirconium hydrides

A Tondro, B Bidyk, I Ho, H Abdolvand - Materials Today Communications, 2022 - Elsevier
The zirconium alloys used in the core of nuclear reactors are susceptible to hydride
formation and hydrogen embrittlement. Depending on the loading condition, zirconium …

Deformation mechanism of embedded hydride within the polycrystalline zirconium matrix

H Ghaffarian, D Jang - Journal of Nuclear Materials, 2022 - Elsevier
It is widely accepted that the characteristics of hydrides in the Zr-based nuclear fuel cladding
are critical factors determining the integrity of the spent fuel. Therefore, to mitigate any harm …

[HTML][HTML] Temperature-dependent axial mechanical properties of Zircaloy-4 with various hydrogen amounts and hydride orientations

S Bang, H Kim, J Noh, D Kim, K Keum, Y Lee - Nuclear Engineering and …, 2022 - Elsevier
The effects of hydride amount (20–850 wppm), orientation (circumferential and radial), and
temperature (room temperature, 100° C, 200° C) on the axial mechanical properties of …