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2022823 · Niobium-zirconium (Nb-Zr) alloy is an old superconductor that is a promising new candidate for superconducting radio-frequency (SRF) cavity applications.
contactNiobium Alloys. For most of the Nb alloys, the research focused on improving the high-temperature strength and oxidation resistance without degrading the inherently good
contactJournal of Phase Equilibria and Diffusion. 2022. The Nb-Zr system was reassessed based on calculated theoretical data and available thermodynamic and phase equilibria data.
contact198261 · 72Eff: Van Effenterre, P., “Study of the Equilibrium Diagram and Structural Transformations Obtained by Quenching at Different Rates or Tempering of Zr−Nb Alloys
contactThis work systematically investigated the effects of Nb and Ti elements on the structural stability of the bcc- β phase and mechanical properties of Zr-Nb-Ti alloys. Various binary
contactBrowse Niobium-zirconium alloy, Nb99Zr1 and related products at MilliporeSigma. US EN. Applications Products Services Support. Home; Search Results; Niobium-zirconium
contact202086 · CREEP STRENGTH OF NIOBIUM ALLOYS, Nb-l%Zr AND PNC-II Robert H. Titran National Aeronautics and Space Administration Lewis Research Center
contact2021525 · Niobium-Zirconium alloys (Nb-1Zr) and PWC-11 alloys (Nb-1Zr-0.1C) have been used in the SP-100 design as basic materials for lithium coolant boundaries,
contact202323 · Niobium-Zirconium alloys (Nb-1Zr) and PWC-11 alloys (Nb-1Zr-0.1C) have been used in the SP-100 design as basic materials for lithium coolant boundaries,
contactJournal of Phase Equilibria and Diffusion. 2022. The Nb-Zr system was reassessed based on calculated theoretical data and available thermodynamic and phase equilibria data. The Gibbs energies of the bcc and hcp solid phases were described using…. Expand. Highly Influenced. View 5 excerpts, cites methods and background.
contact2023315 · The reason for accelerated corrosion of Zr-Nb alloys in lithiated water is discussed from the rapid oxidation of β-Nb precipitates. ... "Oxidation behavior of niobium in oxide layer of zirconium ...
contact20161112 · Typical room temperature mechanical properties of unalloyed niobium and the most common Nb alloys are given in Tables ... This is used to manufacture coolant tubes of Zr-2.5Nb alloy for heavy water nuclear reactors. Recently M/s MIDHANI, Hyderabad, has produced sheets of C-103 (Nb-10Hf-1Ti) alloy for satellite applications,
contact20071115 · The terminal solid solubility (TSS) of hydrogen in the Zr–2.5 wt. % Nb alloy has been determined by measuring the decomposition pressures of several Zr–2.5 wt.% Nb alloys containing hydrogen ...
contact198261 · 72Eff: Van Effenterre, P., “Study of the Equilibrium Diagram and Structural Transformations Obtained by Quenching at Different Rates or Tempering of Zr−Nb Alloys (0–55% Nb)”, Report CEA-R-4330, Atomic Energy
contact2005711 · Zr-2,5 % Nb alloy are widely used as structural material for pressure tubes of channel nuclear power reactors with heavy pressured water (CANDU-PHW) and boiler water (RBMK, Fugen). Tensile and creep behavior of Zr-2,5 % Nb alloy significantly depend on heat treatment. To satisfy design requirements to reactor pressure tubes Zr-2,5 % Nb
contactStructural stability, sound velocities, elasticity, and thermodynamic properties of cubic Zr 0.5 Nb 0.5 alloy have been investigated at high pressure and high temperature by first-principles density functional calculations combined with the quasi-harmonic Debye model. A pronounced pressure-induced shear wave velocity stiffening in Zr 0.5 Nb 0.5 alloy is
contact： Oxidation behavior of Zr-10Nb-10Ti and Zr-10Nb-20Ti (compositions are in atomic percent) alloys has been investigated in air between 300 and 700°C. Higher Ti content in the alloy enhances the oxidation resistance.
contactThese niobium alloys have high strength in the range of 1100~1400℃, such as the room temperature strength σb=300MPa and elongation δ=20% of Nb-0.3%ZrO2 (mass fraction) in the recrystallized state at 1300℃/1h; Strength σb=120MPa at 1200℃, elongation δ=36%. This type of niobium alloy has good working plasticity at room temperature and ...
contact2022820 · Different cases for Zr-Nb alloys with unit cells having BCC and HCP structures are considered. Optimal values of the lattice constants are obtained. Critical value for the niobium concentration corresponding to the structural transformation HCP → BCC at zero temperature is defined.
contact2023315 · The reason for accelerated corrosion of Zr-Nb alloys in lithiated water is discussed from the rapid oxidation of β-Nb precipitates. ... "Oxidation behavior of niobium in oxide layer of zirconium ...
contact201211 · In order to characterize the amount of oxidized Nb as function of oxide depth in Zr–0.4Nb alloy, microbeam (0.2 m spatial resolution) XANES measurements were performed at the Advanced Photon ...
contact2021622 · Niobium (Nb)-based alloys have been extensively used in the aerospace field owing to their excellent high-temperature mechanical properties. However, the inferior oxidation resistance severely limits the application of Nb-based alloys in a high-temperature, oxygen-enriched environment. Related scholars have extensively studied the oxidation
contactA study is being conducted at NASA Lewis Research Center to determine the feasibility of using a carbide particle strengthened Nb-1% Zr base alloy to meet the anticipated temperature and creep resistance requirements of proposed near term space power systems. In order to provide information to aid in the determination of the suitability of the
contact201235 · effectiveness of niobium and tantalum in various nickel-base superalloys and iron- nickel-base superalloy INCONEL 718,. ... (Both alloys contain 0.015 pet B and 0.10 pet Zr) IN738 MO/W MoiTa Mo/Nb ... caused a weakening of the alloy. Ta and Nb were found to be more hot corrosion resistant than MO in IN738 and B1900. ...
contact201917 · The extraordinary superconductivity has been observed in a pressurized commercial niobium–titanium alloy. Its zero-resistance superconductivity persists from ambient pressure to the pressure as high as 261.7 GPa, a record-high pressure up to which a known superconducting state can continuously survive.
contact2022512 · The first results on the activation process and mechanisms of novel quinary alloy Ti–Zr–V–Hf–Nb non-evaporable getter (NEG) film coatings with copper substrates were presented. About 1.075 µ m of Ti–Zr–V–Hf–Nb NEG film coating was deposited on the copper substrates by using the DC sputtering method.
contact： Oxidation behavior of Zr-10Nb-10Ti and Zr-10Nb-20Ti (compositions are in atomic percent) alloys has been investigated in air between 300 and 700°C. Higher Ti content in the alloy enhances the oxidation resistance.
contactItem No.: ALB-N015. Niobium Zirconium (Nb1Zr) Alloy Sheets is made of Nb-1Zr alloy with purity over 99.95%. Size available: Thickness 0.1-10 mm; Width 30-1000 mm; Length 30-3000 mm. Standard: ASTM B 393. ALB Materials Inc is a global supplier of Niobium Zirconium (Nb-1Zr) Alloy Sheets / Plate / Board and we can provide customized niobium
contact2023217 · Tantalum Niobium Alloy List Tantalum Niobium Foil Materials: Ta-3Nb, Ta-20Nb, Ta-30Nb, Ta-40Nb Standard: ASTM B708-98 Thickness: 0.03-0.07 mm Width: 30-200 mm
contact2022823 · Niobium-zirconium (Nb-Zr) alloy is an old superconductor that is a promising new candidate for superconducting radio-frequency (SRF) cavity applications. Using density-functional and Eliashberg...
contact2020529 · The Zr–Nb alloys are widely used structural materials of modern nuclear power plants, where they undergo a significant neutron irradiation. In the present work, the cascades of atomic displacements in the Zr–n%Nb binary alloy (n = 0.5%, 1%, 1.5%, 2%, 2.5%, 3%) at temperatures 0 and 600K are studied by means of the molecular dynamics ...
contactThe individual and combined effects of W and Zr additions on macrostructure, microstructure and mechanical properties of Nb have been investigated. Nb, Nb-10 wt% W, Nb-2.5 wt% Zr and Nb-10 wt% W-2.5 wt% Zr alloy ingots were prepared by electron beam drip melting using high purity Nb, W and Zr rods. Additions of W and Zr resulted in significant
contact2023315 · The reason for accelerated corrosion of Zr-Nb alloys in lithiated water is discussed from the rapid oxidation of β-Nb precipitates. ... "Oxidation behavior of niobium in oxide layer of zirconium ...
contact2020102 · The alloy was vacuum annealed at 1350–1800 °C to study the stability of Nb 2 C and Nb(Zr)C carbide precipitates in the microstructure. Compression creep tests conducted at 900 and 1000 °C revealed a stress exponent value of 2 and activation energy of 508 kJ/mol. NbSi 2 -based coatings were developed on the Nb-1Zr-0.1C alloy tubes
contact2021525 · Niobium-Zirconium alloys (Nb-1Zr) and PWC-11 alloys (Nb-1Zr-0.1C) have been used in the SP-100 design as basic materials for lithium coolant boundaries, reactor shells and parts inside fuel casings. Nb-1Zr alloy has 50% higher yield strength than pure Niobium and has the same corrosion resistance as pure Niobium in many solutions.
contact2022820 · Different cases for Zr-Nb alloys with unit cells having BCC and HCP structures are considered. Optimal values of the lattice constants are obtained. Critical value for the niobium concentration corresponding to the structural transformation HCP → BCC at zero temperature is defined.
contact20211114 · The most typical niobium titanium alloy is titanium content 66% (approx. 50% wt%). Niobium titanium alloy is an important alloyed superconductor material. Its superconductive transition temperature is 8K to 10K. If other elements are added into the alloy, superconductivity will be improved. Niobium titanium alloy is sintered from alloyed
contact： Oxidation behavior of Zr-10Nb-10Ti and Zr-10Nb-20Ti (compositions are in atomic percent) alloys has been investigated in air between 300 and 700°C. Higher Ti content in the alloy enhances the oxidation resistance.
contactStructural stability, sound velocities, elasticity, and thermodynamic properties of cubic Zr 0.5 Nb 0.5 alloy have been investigated at high pressure and high temperature by first-principles density functional calculations combined with the quasi-harmonic Debye model. A pronounced pressure-induced shear wave velocity stiffening in Zr 0.5 Nb 0.5 alloy is
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