An investigation of superplasticity in a thermomechanically processed U-6nb (α + γ2) alloy

Ludtka, Gerard M.; Oakes, R. E.; Mackiewicz-Ludtka, G.; Bridges, Robert L.; Griffith, J. L.

doi:10.1007/bf02657325

Cited by 9 publications

(3 citation statements)

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“…[17] Fig. 6. Calculated phase diagram of U-Nb binary system with experimental data [17,[21][22][23]30].…”

Section: Optimized Results and Discussionmentioning

confidence: 99%

“…The investigations of U-based alloys focus not only on the U compounds used in the fuels, but also on the alloys of U and common elements of the structural materials and fission products [1][2][3]. Mn and Nb are very important alloying elements for the U-based alloys [4][5][6][7][8][9]. In order to develop new nuclear materials, it is necessary to understand the phase equilibria in U-based alloy systems.…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamic modeling of the U–Mn and U–Nb systems

Liu

Wang

et al. 2008

Journal of Nuclear Materials

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“…[17] Fig. 6. Calculated phase diagram of U-Nb binary system with experimental data [17,[21][22][23]30].…”

Section: Optimized Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermodynamic modeling of the U–Mn and U–Nb systems

Liu

Wang

et al. 2008

Journal of Nuclear Materials

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“…Near the Fermi energy, the states of 5f electron hybridize with states of 6d, 7s electrons. This might be the source interaction that leads to the exotic structure of uranium crystal and complex ways of forming uranium compounds [1].…”

Section: Introductionmentioning

confidence: 99%

FIRST-PRINCIPLES STUDY ON THE THERMODYNAMIC DEFECT AND CRYSTAL STRUCTURE OF U-12.5 AT% Nb ALLOY

Wang¹,

Wang²,

Wang³

et al. 2015

IJHT

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Depleted uranium will be stainless if a small amount of niobium was added into it, and niobium has good solubility in the γ-phase uranium. Upon cooling, it undergoes phase transformation. U-Nb alloys which is near the monotectoid have a finally martensitic (α") phase at room temperature if the content percent of niobium is from 5 to 8 w.t.%. First principles calculations have been performed to study how the niobium (Nb) atom defects into the γ-uranium and crystal structure of U-12.5 at% Nb alloy. Using DFT calculations, the authors find that the substitutional sites prefer to be occupied by Nb atoms thermodynamically in the γ-phase U. Furthermore, the crystal structure of U-12.5 at% Nb alloy is a monoclinic structure (α"), and the electronic structures characteristic reveals that the electron interactions between Nb atoms and U atoms in the alloy are mainly dominated by 4d orbital of Nb atom and 5f, 6d orbitals of U atom.

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Superplasticity

2004

Smithells Metals Reference Book

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An investigation of superplasticity in a thermomechanically processed U-6nb (α + γ2) alloy

Cited by 9 publications

References 0 publications

Thermodynamic modeling of the U–Mn and U–Nb systems

Thermodynamic modeling of the U–Mn and U–Nb systems

FIRST-PRINCIPLES STUDY ON THE THERMODYNAMIC DEFECT AND CRYSTAL STRUCTURE OF U-12.5 AT% Nb ALLOY

Superplasticity

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