Fractal pattern of δ-hydride with stress-state

Arpan Das

Chaos, Solitons & Fractals, 2024, vol. 186, issue C

Abstract: Fractal dimension of any defect in microstructure is a critical parameter for their geometric irregularities, pattern of arrangements and morphological attributes. The fractal dimensions of δ-hydride network (circumferential and radial) at different hydrogen concentrations of a Zr–2.5Nb pressure tube have been determined and correlated with its respective microstructural and textural variables as a function of stress-state. Image texture analysis has also been carried out to realize the stored energy and configurational stability of the δ-hydride pattern under α-Zr matrix. The invasive fractal nature, chaos and reorientation of δ-hydride as a function of processing schedule, stress-state and hydrogen content has been convincingly revealed. This research will be extremely useful in estimating primarily the severity of hydrogen embrittlement of a nuclear component by simply analyzing the fractal pattern and image texture of such hydride networks.

Keywords: Zr–2.5Nb alloy; δ-hydride; Reorientation; Image texture; Fractal dimension; Hydrogen embrittlement (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:186:y:2024:i:c:s0960077924007008

DOI: 10.1016/j.chaos.2024.115148

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