Results 331 to 340 of about 1,067,811 (382)
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Canadian Metallurgical Quarterly, 1965
Abstract Transformation temperatures at cooling rates to 5,500°C per sec have been determined for zirconium alloys with 1.0, 2.5, 3.0, and 5.0 weight per cent niobium, and for pure zirconium at cooling rates to 35.000°C per second. On the basis of the surface-rumpling criterion; the transformation (at rates greater than critical) is martensitic. in the
J. Gordon Parr, A.G. McMullen
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Abstract Transformation temperatures at cooling rates to 5,500°C per sec have been determined for zirconium alloys with 1.0, 2.5, 3.0, and 5.0 weight per cent niobium, and for pure zirconium at cooling rates to 35.000°C per second. On the basis of the surface-rumpling criterion; the transformation (at rates greater than critical) is martensitic. in the
J. Gordon Parr, A.G. McMullen
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Journal of the Less Common Metals, 1971
Abstract Zirconium alloys containing thorium oxide, yttrium oxide, cerium zirconate or lanthanum oxide were prepared by arc-melting. The refractories apparently dissolved in the molten zirconium and precipitated as a dispersed phase on solidification.
H.M. Skelly, C.F. Dixon
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Abstract Zirconium alloys containing thorium oxide, yttrium oxide, cerium zirconate or lanthanum oxide were prepared by arc-melting. The refractories apparently dissolved in the molten zirconium and precipitated as a dispersed phase on solidification.
H.M. Skelly, C.F. Dixon
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Mechanical and electrochemical properties of PEO coatings on zirconium alloy
Surface Engineering, 2019Zirconium and its alloys are frequently used in many engineering and scientific applications owing to their unique mechanical, chemical and thermal properties.
U. Malayoğlu +3 more
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Corrosion of Zirconium and Zirconium Alloys
2005Abstract This article provides a description of the classification, industrial applications, microstructures, physical, chemical, corrosion, and mechanical properties of zirconium and its alloys. It discusses the formation of oxide films and the effects of water, temperature, and pH on zirconium. The delayed hydride cracking of zirconium
Te-Lin Yau, Richard C. Sutherlin
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dislocations in zirconium alloys
Journal of Nuclear Materials, 1979Abstract Dislocations with 〈c〉- component Burgers vectors have been found in abundance near deformation twins, and to a lesser extent near grain boundary junctions, in deformed Zircaloy-2 and Zircaloy-4. Both pure 〈c〉 and 〈c + a〉 dislocations have been identified by TEM contrast experiments.
G.J.C. Carpenter, S.R. MacEwen, O.T. Woo
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Advanced Zirconium Alloy for PWR Application [PDF]
Journal of ASTM International, 2010 Abstract Westinghouse is evaluating several advanced zirconium-based alloys, designated collectively as AXIOM™, to achieve improved performance for more demanding fuel management schemes. There are five candidate AXIOM alloys currently being evaluated by Westinghouse.
Anand Garde +6 more
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The stability of alloying additions in Zirconium
Journal of Nuclear Materials, 2013The interactions of Cr, Fe, Nb, Ni, Sn, V and Y with Zr are simulated using density functional theory. Thermodynamic stabilities of various different Zr based intermetallic compounds, including multiple Laves phase structures and solutions of alloying additions in both alpha and beta-Zr were investigated. The thermodynamic driving forces in this system
Lumley, SC +5 more
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Oxidation of Zirconium-Yttrium Alloys
Advances in X-ray Analysis, 1964AbstractThe phase and elemental distributions on zirconium alloys containing 5, 10, 25, 35, and 50 at.%. yttrium, oxidized in dry air at 1200 and 1600°C, have been studied by X-ray diffraction, fluorescence, and electron-microprobe techniques. Zirconium-yttrium alloys, which are entirely solid at 1200°C, and zirconium 5 and 25 at.% yttrium alloys ...
N.A. Richard, D.A. Vaughan, D.I. Phalen
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Substructure strengthening in zirconium and zirconium-tin alloys
Journal of Nuclear Materials, 1972Abstract The substructures developed during the hot compression of α-Zr and a series of Zr-Sn solid solution alloys were examined by means of transmission electron microscopy. The materials were hot compressed in a modified Instron testing machine at constant true strain rates of 10−4 to 3 × 10−1sec−1. The range of testing temperatures was 625 to 825
J.J. Jonas, D.J. Abson
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Performance of Zirconium and Zirconium Alloys in Organics
Journal of Testing and Evaluation, 1996Abstract Zirconium and its alloys are well known for their corrosion resistance in a broad range of inorganic and organic media. They have played a key role in advancing the production technologies of urea and formic, acetic, hydroxyacetic, lactic, and methacrylic acids, methyl methacrylate, rayon, alcohols, and phenolic resins, etc ...
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