Zr-2.5 Nb
Micromechanics of plasticity of Zr-2.5%Nb alloy
... of 5 μm diameter Zr–2.5%Nb micro-pillars in: (a) the non-irradiated condition and (b) after Zr + ion irradiation[79] ...the Zr-2.5%Nb pressure tube material. Large α-Zr ...
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High Temperature Mechanical Behavior of Zr-2,5 % Nb Alloy (C273)
... % 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, ...of Zr-2,5 % Nb alloy ...
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On the Failure Assessment Diagrams for CANDU-6 Pressure Tube Structural Integrity Analysis (G066)
... a Zr-2.5%Nb alloy and that contain the fuel ...The Zr-2.5%Nb alloy is susceptible to DHC phenomenon when there is diffusion of hydrogen atoms to a service-induced flaws, followed by the ...
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Effect of Nitrogen Addition on Superelasticity of Ti Zr Nb Alloys
... In order to evaluate the superelastic behavior more quantitatively, the strain increment cyclic tensile tests were carried out at room temperature, and the results are shown in Fig. 9. At the first cycle, tensile stress ...
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Glass Forming Ability, Corrosion Resistance and Mechanical Properties of Zr60−xAl15Ni25TMx (TM = Nb and Ta) Bulk Metallic Glasses
... of Zr 3d, Al 2s, Ni 2p, Nb 3d, O 1s, ...as Zr 4 + , Al 3 + , Ni 2 + and Nb 5 + , ...the Zr 56 Ni 25 Al 15 Nb 4 alloy as-polished and immersed in 3 ...
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Elastic Deformation Behavior of Multi Functional Ti Nb Ta Zr O Alloys
... Figure 1 shows the change in the tensile stress–strain curve at room temperature with cold working for the Ti–23Nb– 0.7Ta–2Zr–1.2O alloy. The elastic modulus is dramatically dropped by the cold working from 70 to 55 GPa ...
7
Thermodynamic Analysis of the Phase Equilibria in the Nb Ni Zr System
... pure Zr (99.6%) sponge using the following procedures. Initially, the Nb-Ni alloys were obtained by arc melting cold-pressed pellets of Nb-Ni mixed powders in an argon atmosphere, and then these ...
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Mechanical Properties and Phase Stability of Ti Nb Ta Zr O Alloys
... behavior in the specimens with lower niobium (33% to 34%) and higher oxygen (0.5%) contents are similar to those of the alloy with basic composition; these specimens showed little work hardening and non-linearity in the ...
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Corrosion Behavior of Cu Zr Ti Nb Bulk Glassy Alloys
... of Nb content are shown in Fig. 2. It is seen that the Cu–Zr–Ti–Nb alloys keep high glass-forming ability in the investigated composition range, though the addition of Nb causes a ...
5
Thermodynamic Calculation of Phase Equilibria in the Nb Ni Ti Zr Quaternary System
... the Nb-Ni-Ti and Nb-Ni-Zr ...quaternary Nb-Ni-Ti-Zr glassy alloys exhibit high hydrogen imperme- ability, corrosion resistance, and formability for use in fuel cells as bipolar ...
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Thermal Stability and Mechanical Properties of Glassy and Amorphous Ni Nb Zr Alloys Produced by Rapid Solidification
... solidified Nb–Ni 1) and Ni–Zr 2,3) alloys are known to have an amorphous phase in their wide composition ...that Nb and Zr metals exhibit high hydrogen ...Ni– Nb–Zr alloys and ...
5
Precipitation of Icosahedral Phase in Zr Ni Nb Cu Al Metallic Glasses
... in which, x is the transformed volume fraction, n is the Avrami exponent, reflecting the characteristics of nucleation and growth during crystallization, is the incubation time, and k is the reaction rate constant. ...
5
Effects of Phase Constitution of Zr Nb Alloys on Their Magnetic Susceptibilities
... Pure Zr buttons were first prepared by arc-melting from sponge Zr ...obtaining Zr-Nb binary alloys. Various compositions of Zr-xNb alloys (x: 0, 3, 6, 9, 12, 16, 18, 20, 30, and 40 ...
7
Formation and Thermal Stability of Ni Based Bulk Metallic Glasses in Ni Zr Nb Al System
... for Zr, ...and Nb. In particular, Ni-Nb intermediate alloys were produced first for the subsequent co-melting with Zr and Al ...mm 2 were prepared by ...
5
Geochemistry and Petrogenesis of Intrusive Pluton in North of Golpayegan (Central Part of Sanandaj Sirjan Zone)
... According to Rb-(Y + Nb) diagram [23], the studied granite is located within WPG and VAG ranges (Figure 11(a)). In Pearce’s diagrams, when the granite samples are located at WPG and VAG boundaries, they are most ...
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Transport Properties of Ni Nb Zr Glassy Alloys and Hydrogen Absorbed Alloys
... at% Nb and 0 to 80 at% ...Ni, 5 to 35 at% Nb and 5 to 45 at% Zr, and it has been reported that the largest value of the supercooled liquid region is about 50 K for Ni 60 Nb 20 ...
5
Electrical Properties of Nb-Doped TiO2 Thin Films Deposited by Co-sputtering Process
... 350 o C in vacuum atmosphere. The electrical properties of the film were determined by the Hall method using standard clove-leaf geometry. The results indicated that: when the Nb concentration increases followed ...
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Electron Microscopy Study of Eutectic Structure in Nb Ti X and Nb Zr X (X = Co, Ni) Hydrogen Permeation Alloys
... the Nb-Ti-Ni alloy consists of bcc-(Nb, Ti) + B2-TiNi eutectic micro- structures with an appropriate combination of high-hydrogen permeability and excellent hydrogen embrittlement resist- ...concept, ...
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Recent Progress in Bulk Glassy Alloys
... For thousands of years, metallic alloys have been among the most important materials used by mankind, and their im- portance as engineering materials remains as great now as ever. Without exception, all bulk metallic ...
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Hydride Crack Formation in Zr-Nb Alloy under Constant and Cyclic Loading
... After holding the specimen at test temperature for 35 min, a constant static load sufficient to give an initial stress intensity factor of 15 MPa·m ½ was applied on the specimen, then after 15 min cycling loading device ...
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