Reactions of U–Zr alloy with Fe and Fe–Cr alloy

Nakamura, Kinya; Ogata, Takanari; Kurata, Masaki; Itoh, Akinori; Akabori, Mitsuo

doi:10.1016/s0022-3115(99)00227-5

Cited by 52 publications

(26 citation statements)

References 5 publications

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“…The experimental work conducted by Nakamura et al, confirmed the formation of Fe 2 Zr, Fe 2 U, Fe(Pu, U) 6 , and solid solution consisting of c-U, e-Pu, and b-Zr in quaternary U-Pu-Zr-Fe system. [9] They have also observed globular precipitates a few microns in diameter, which after electron probe micro-analyzer (EPMA) examination was assumed to be a-Zr stabilized by oxygen.…”

Section: Resultsmentioning

confidence: 89%

“…[6][7][8][9]13] Figure 3 shows isothermal sections for three ternary subsystems at 973 K (700°C). Different phases can form in Fe-U-Pu subsystem, such as FeU 6 , Fe 2 U, Fe 2 Pu, b-U, g, a-Fe, and bcc phase, also known as (U, Pu)ht. The Fe 2 Pu phase has three polymorphic forms: cubic Laves phase of the C15-type, hexagonal Laves phase of the MgNi 2 -type, and cubic phase that is stable above 1313 K (1040°C).…”

Section: Resultsmentioning

confidence: 99%

“…The phases that can form in Fe-U-Zr subsystem are a-Fe, a-U, a-Zr, Fe 2 Zr, FeZr 2 , Fe 23 Zr 6 , FeZr 3 , Fe 2 U, FeU 6 , v, e, and k. The Fe 2 Zr phase can exist in cubic C15-type and hexagonal C36-type forms. The tetragonal FeZr 2 phase has a narrow temperature range from 1053 K to 1224 K (780°C to 951°C) and orthorhombic FeZr 3 phase occurs below 1124 K (851°C).…”

Section: Resultsmentioning

confidence: 99%

“…All phases were identified using X-ray mapping and EDS point scan analysis, which does not provide any crystallographic information. However, based on their observations, the Fe(Pu, U) 6 , Fe 2 Zr, Fe 2 U, and v phases should be in equilibrium with a liquid phase, and Fe(Pu, U) 6 and v in equilibrium with the k phase. [9] Based (U, Pu)ht, f-(U, Pu), a-U, or b-U.…”

Section: Resultsmentioning

confidence: 99%

“…Out-of-pile annealing tests on diffusion couples have been conducted to investigate FCCI behavior between U-Zr and U-Pu-Zr fuel alloys and Fe, Fe-12Cr, and HT-9 cladding. [4][5][6][7][8][9][10][11] The most inclusive study of quaternary U-Pu-Zr-Fe system at 973 K (700°C) has been conducted using thermal analysis and energy-dispersive spectroscopy (EDS) in scanning electron microscope (SEM). [9] However, there are issues associated with the characterization of Pu phases using EDS such as unavailability of U and Pu standards for appropriate EDS calibration, spatial resolution, magnification-dependent sensitivity of the technique, and overlaps of U and Pu EDS peaks, all of which restrict accurate quantitative chemical analysis of Pu-based phases in SEM.…”

Section: Introductionmentioning

confidence: 99%

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Fuel-Cladding Interaction Between U-Pu-Zr Fuel and Fe

Aitkaliyeva

Madden

Miller

et al. 2015

Metallurgical and Materials Transactions E

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This work investigates fuel-cladding chemical interaction (FCCI) between U-25Pu-14Zr (in wt pct) fuel and pure Fe at elevated temperatures, understanding of which is critical for evaluation of the fuel performance. Phases and microstructure formed in the quaternary uranium-plutonium-zirconium-iron (U-Pu-Zr-Fe) system were characterized using the transmission electron microscopy technique. Phases formed within the FCCI layer were identified using selective area electron diffraction (SAED) analysis as Fe 2 U (Fd-m), Fe 2 Zr (Fd-3m), a-U (Cmcm), Fe 2 Pu (Fd-3m), b-Pu (C12/m1), and b-Zr (Im-3m).

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Fuel-Cladding Interaction Between U-Pu-Zr Fuel and Fe

Aitkaliyeva

Madden

Miller

et al. 2015

Metallurgical and Materials Transactions E

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Microstructure and Mechanical Properties of Zr‐4 Alloy and 316 Stainless Steel Diffusion Bonding Joint Using Nb/Ni Composite Interlayer

et al. 2023

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Diffusion bonding of Zr‐4 alloy and 316 stainless steel (SS) without and with the Nb/Ni composite interlayer has been performed. The maximum shear strength of the joint without interlayer is 131 MPa at 900 °C for 30 min under 10 MPa. The results show that the fracture occurs at the diffusion layer as a result of the limited mutual solubility between Zr and Fe and detrimental residual stress. Sound diffusion bonding joints without defects are obtained at lower bonding temperatures due to the addition of Nb/Ni interlayer, and the maximum shear strength is 380 MPa at 820 °C. The typical microstructure of the Zr‐4/Nb/Ni/316SS joint is Zr‐4/Zr(Nb)/Zr(Fe, Nb)2 /Zr(Nb)/Nb/Ni3Nb/Ni/(Fe, Cr, Ni)/316SS. The highest hardness value of the joint is 422 HV at the Ni3Nb phase, and cracks appear at the interface between Ni3Nb and the remaining Ni foil. The shear strength first increases and then drops as the Ni3Nb layer thickened. The peak residual stress of the joint reduces from 698 to 466 MPa due to the addition of the Nb/Ni composite interlayer. Finally, the growth kinetic model of the Ni3Nb layer is calculated, which provides a pathway for the regulation of joint properties.

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Fe-U-Zr (Iron-Uranium-Zirconium)

2007

Landolt-Börnstein - Group IV Physical Chemistry

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Reactions of U–Zr alloy with Fe and Fe–Cr alloy

Cited by 52 publications

References 5 publications

Fuel-Cladding Interaction Between U-Pu-Zr Fuel and Fe

Fuel-Cladding Interaction Between U-Pu-Zr Fuel and Fe

Microstructure and Mechanical Properties of Zr‐4 Alloy and 316 Stainless Steel Diffusion Bonding Joint Using Nb/Ni Composite Interlayer

Fe-U-Zr (Iron-Uranium-Zirconium)

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