Effect of orientation and presence of hydride on the fatigue crack growth behavior of Zr–2.5wt% Nb
Source abstract
Abstract
Abstract Fatigue crack growth (fcg) behavior of cold-worked and stress relieved Zr–2.5 Nb was studied in the longitudinal (with and without hydrides) and transverse direction at ambient temperature and load ratio of 0.1 using compact tension samples. Fatigue loading in the transverse direction (distribution of both hard and soft grains) showed facet formation on the fracture surface and the highest Δ K th whereas loading in the longitudinal direction (distribution of primarily soft grains) showed no facet formation and a lower Δ K th . Hydrided Zr–2.5 Nb loaded in the transverse direction showed large facets with the lowest Δ K th . Texture influenced fcg at low Δ K but not at higher Δ K .
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OpenAlex topics: Nuclear Materials and Properties · Fusion materials and technologies · High Temperature Alloys and Creep
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References (32)
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