Zirconium alloys
Oxidation Behavior of Zirconium Alloys in Transient Conditions
... of zirconium alloys will be discussed further in the next ...of zirconium alloys is dependent on the concentration of alloying elements, microstructure, and processing history ...
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Transitions in Creep Mechanisms of Zirconium Alloys.
... the zirconium alloys subjected to these conditions becomes a critical parameter for nuclear reactor design, and its accurate prediction inevitably requires the comprehension of transitions in creep ...
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Neon ion simulation of neutron induced irradiation growth in zirconium alloys.
... of zirconium alloys that were neutron irradiated at ~570K showed that increasing amounts of alloy addition in solid solution in the ct-phase caused a reduction in the size and increase in the density of the ...
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Microstructures characterization of precipitates in Zirconium alloys
... Zirconium alloys have been used for fuel cladding tubes in nuclear reactors due to the low absorption cross-section for thermal neutrons, good mechanical properties and high corrosion ...of zirconium ...
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Creep Behavior of Niobium-Containing Zirconium Alloys – An Overview
... Zirconium alloys (Zircaloy-2 and -4) remain the main cladding materials in most light water ...niobium-modified zirconium alloys because the Nb addition has been found to improve cladding ...
8
A Model for Delayed Hydride Cracking of Zirconium Alloys
... of zirconium alloys is well known to be insensitive to an applied stress (Puls, 1981) and little transfer of hydrogen would occur during thermal annealing even under a stress gradient according to ...
9
Tensile properties of yttrium titanium and yttrium zirconium alloys
... ABSTRACT Complete series of yttrium-titanium and yttrium-zirconium alloys were tested in tension at room temperature, and ultimate tensile strength, yield strength and reduction in area [r] ...
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Effect of mechanical stress on the modes of corrosion of zirconium alloys. theoretical approach.
... of zirconium alloys when fuel operating conditions are changed (neutron field, water chemistry, operation lifetime) and/or when alloy chemical composition and microstructure are varied to provide better ...
8
Impact of Fuel Assembly Transportation on Zirconium Alloys: toward a Mechanistic Understanding
... Zirconium alloys are commonly used in pressurized water reactor as fuel rod cladding tubes. After irradiation and cooling in pool, the spent nuclear fuel assemblies are transported for wet storage to a ...
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Hydrides in zirconium alloys.
... Zirconium and zirconium alloys are fabricated w i t h relatively low levels of hydrogen content. They have the capacity, however, to absorb hydrogen in large quantities; up to 5.0at% hydrogen at ...
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Grain Refinement during Rapid Solidification of Aluminum Zirconium Alloys Using Electrospark Deposition
... Binary AlZr alloys containing different solute composi- tions (0.5, 1.0, 1.25 and 1.5 at% Zr) were prepared by powder metallurgy. Commercially available Al (99.5%, ¹325 mesh) and Zr (98.5%, ¹325 mesh) powders ...
6
Stability and Compatibility of Hydrogen Barriers Applied to Zirconium Alloys EUR 4098
... 1 Corrosion tests in terphenyl have shown that zircaloy 2 can be properly protected against hydrogen pick-up, by coating with aluminum.... 2 The interdiffusion of Zr 2 and Al is strongly[r] ...
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Zirconium Alloys in Terphenyls EUR 2549
... IMARISIO European Atomic Energy Community - EURATOM Joint Nuclear Research Center - Ispra Establishment Italy Physical Chemistry Service Paper presented a t the ANS winter meeting 1964, [r] ...
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Material Degradation and Fracture in Zirconium Alloys
... In the present study, the model has been used for the simulation of Zircaloy-2 hydrogen embrittlement and initiation of delayed hydride cracking in a cracked plate[r] ...
8
The Influence of Different Contents of Bi Addition on the Corrosion Behavior of Various Zirconium Based Alloys
... promising zirconium alloys, such as Zr-4 ...of zirconium alloys is a common method to develop new alloys with excellent corrosion resistance [5] ...of zirconium alloys was ...
7
Temperature Limit for Delayed Hydride Cracking in Zr 2.5Nb Alloys (G311)
... in zirconium alloys, ...on zirconium alloys have shown that the DHC process is sensitive to the direction of approach to the test temperature, that is, whether this temperature is attained by ...
8
Synthesis of nuclear waste simulants by reaction precipitation: Formation of caesium phosphomolybdate, zirconium molybdate and morphology modification with citratomolybdate complex
... It is important in the laboratory, to replicate the conditions (i.e. acidity and temperature) in which these HAL solids form as closely as possible, allowing for the production of relevant simulants for comparative ...
13
Magnetostriction of ternary Fe–Ga–X alloys (X=Ni,Mo,Sn,Al)
... 800 °C, 100 reaches an astonishing 260 ppm. 2 The available strains (3/2 100 ) for the Fe–Ga alloy are comparable to those of PZT ceramics. At stresses up to 100 MPa, saturation values of the magnetostriction can be ...
5
Untersuchungen in der Zirkoniumecke der Systeme Zirkonium-Niob-Vanadium. EUR 1317. = Investigations in the zirconium corner of the zirconium-niobium-vanadium system. EUR 1317.
... Ternary alloys with a higher transformation temperature than binary zirconium-niobium alloys exist only in the immediate vicinity of the binary zirconium-chromium and zirconium-vanadium [r] ...
12
Conversion of zirconium sulfates to anhydrous zirconium tetrafluoride
... in zirconium metal has resulted in attempts to develop cheaper processes for winning zirconium from its domestic ore ...of zirconium sulfate are then reacted with 70 per cent hydrofluoric acid to ...
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