Thermal and mechanical properties of zirconium hydride

Yamanaka, Shinşuke; Yoshioka, K; Uno, Masayoshi; Katsura, Masahiro; Anada, Hiroyuki; Matsuda, Tsuneo; Kobayashi, Shinichi

doi:10.1016/s0925-8388(99)00389-8

Cited by 164 publications

(109 citation statements)

References 10 publications

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“…No sharp elastic modulus increase is observed at the matrix blister interface. This indicates the elastic modulus value is similar for unhydrided and highly-hydrided zirconium until the α + δ → δ transition, thus supporting the elasticity modulus reported by Puls et al [65] but not the one of Yamanaka et al [31].…”

Section: Nano-hardnesssupporting

confidence: 80%

“…The elastic modulus was measured by three unloading phases during the indentation process. The Poisson ratio was fixed to 0.3 for both δ-hydride and zirconium (close to the 0.32 Poisson ratio found by Yamanaka et al [31] for both the δ-hydride and zirconium).…”

Section: Nano-hardnessmentioning

confidence: 99%

“…First, the crystallographic Figure 11: (a) Nanohardness measurements with a 10mN load on two profiles on a 217 µm deep blister on the radial circumferential plane, (b) evolution of the hardness of the hydrided zirconium as a function of the hydrogen content from [31,66,67,68,69,70], (c) elastic modulus measured from the nanohardness measurements considering a ν=0.3 Poisson ratio and (d) evolution of the elastic modulus of the hydrided zirconium as a function of the hydrogen content from [31,65,68,71,72,73,74].…”

Section: Comparison Of Different Laboratory Grown Blistersmentioning

confidence: 99%

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Formation and characterization of hydride blisters in Zircaloy-4 cladding tubes

Ménibus

Auzoux

Dieye

et al. 2014

Journal of Nuclear Materials

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This article is focused on the formation of hydride blisters in zirconium alloys an experimental and theoritical standpoint, and their characterization in terms of morphology, hydrides crystallographic phases, hardness and hydrogen concentration. An experimental setup was developed to grow hydride blisters on pre-hydrided Zircaloy-4 cladding tubes by thermo-diffusion. The thermal conditions were optimized based on thermo-diffusion calculations, that take into account the hysteresis in the hydrogen solubility limit, to obtain a high blister growth rate. Micro X-Ray Diffraction (XRD), nano-hardness and Elastic Recoil Detection Analysis (ERDA) showed that the blisters contain a hydrogen gradient, with pure δ-hydride phase close to the external surface over one third of the blister depth. thermo-diffusion * Tel.: +33 1 69 08 39 43; e-mail: arthur.hellouin-de-menibus@cea.fr 1 calculations showed these half thickness blisters should grow in only a few days in PWR conditions. Eventually, the Diffusion Equilibrium Threshold (DET) was defined as a criterion that limits the blister growth, and emphasizes that the hysteresis in the hydrogen solubility limit in zirconium must be taken into account to model hydrogen thermo-diffusion in zirconium alloys.

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Section: Nano-hardnesssupporting

confidence: 80%

Section: Nano-hardnessmentioning

confidence: 99%

Section: Comparison Of Different Laboratory Grown Blistersmentioning

confidence: 99%

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Formation and characterization of hydride blisters in Zircaloy-4 cladding tubes

Ménibus

Auzoux

Dieye

et al. 2014

Journal of Nuclear Materials

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“…The linear thermal expansion coefficient of δ-phase ZrH x in the 25-300°C temperature range varies between 6.7×10 -6 and 10.0×10 -6 1/°C [Yamanaka et al 1999]. The melting point of zirconium hydride was estimated by Pinchuck et al [1976] at 1882±75°C, i.e., somewhat higher than that of pure zirconium.…”

Section: General Characteristicsmentioning

confidence: 99%

Feasibility Study of Supercritical Light Water Cooled Fast Reactors for Actinide Burning and Electric Power Production, 3rd Quarterly Report

Donald¹,

Elsworth²

2002

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“…A delayed hydride cracking calculation model was proposed for the stationary model [25,26]. The effect of temperature on strength characteristics was studied in a number of other papers [17,[27][28][29][30][31], including the effect of isotopic composition [32].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Property Testing of Hydrogenated Zirconium Irradiated with Electrons

Kudiiarov

Ларионов

Tyurin

2018

Metals

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Abstract:The mechanical properties of the hydrogenated zirconium alloy Zr-1Nb are studied under different conditions for hydrogen removal by an electron beam and thermal heating. The mechanical testing of zirconium samples is analyzed during hydrogenation and irradiation with a low energy electron beam. The plasticity of the samples is shown to be increased during the radiation stimulation of hydrogen removal from zirconium by even a weak electron beam. In this case, the tensile strength (ultimate strength) is practically not changed.

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Thermal and mechanical properties of zirconium hydride

Cited by 164 publications

References 10 publications

Formation and characterization of hydride blisters in Zircaloy-4 cladding tubes

Formation and characterization of hydride blisters in Zircaloy-4 cladding tubes

Feasibility Study of Supercritical Light Water Cooled Fast Reactors for Actinide Burning and Electric Power Production, 3rd Quarterly Report

Mechanical Property Testing of Hydrogenated Zirconium Irradiated with Electrons

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