Zircaloy 4
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Rolling and recrystallization behavior of pure zirconium and zircaloy-4
ABSTRACT Rolling and recrystallization of pure zirconium and zircaloy-4 have been studied comparatively in this paper. For the as-received condition, zirconium presented a recrystallized microstructure and the alloy a typical basketweave microstructure. Comparative rolling tests were performed, and reduction limit curves as a function of the rolling temperat
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Propiedades de superficies de Zr hexagonal y ZrO2 tetragonal de bajo índice a partir de cálculos DFT
ABSTRACT The use of nuclear reactor as a source of electric energy has been extended and consolidated during the second half of last century and the beginnings of XXI century. The continuity of this resource relies on the reliability and security of nuclear plants, requiring the improvement of all features related to their operation. Among them, the structur
Matéria (Rio J.). Publicado em: 19/07/2018
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3. Anodization growth of self-organized ZrO2 nanotubes on zircaloy-4. Evaluation of the photocatalytic activity
ABSTRACTZrO2nanotube arrays were prepared through anodic oxidation in glycerol organic electrolyte containing ammonium fluoride. The morphology of these nanotube arrays can be controlled by changing the preparation parameters such as applied voltage, fluoride ion concentration and time of anodization. While the oxidation voltage is the main factor that contr
Matéria (Rio J.). Publicado em: 2015-09
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4. Hidretação do Zircaloy-4 para a obtenção de pó de Zr / Zircaloy hydriding for obtaining Zr powder
Combustíveis nucleares baseados em materiais compósitos como a dispersão de compostos de urânio em uma matriz de ligas de zircônio são uma alternativa possível para o avanço da tecnologia de geração nucleoelétrica. Um passo necessário para a obtenção desses combustíveis é a produção do pó da liga de Zircônio para ser utilizado como materi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/03/2010
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5. Stress Corrosion Cracking of Zircaloy-4 in Halide Solutions: Effect of Temperature
Zircaloy-4 was found to be susceptible to stress corrosion cracking in 1 M NaCl, 1 M KBr and 1 M KI aqueous solutions at potentials above the pitting potential. In all the solutions tested crack propagation was initially intergranular and then changed to transgranular. The effect of strain rate and temperature on the SCC propagation was investigated. An incr
Materials Research. Publicado em: 2002-06
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6. Mechanical Properties Degradation at Room Temperature in ZRY-4 by Hydrogen Brittleness
A hot rolled Zircaloy-4 alloy, annealed with a final cold rolling, presenting rounded grains, was studied. Hydrogen cathodic charge with a homogenization heat treatment was used to pre-charge the specimens with different hydrogen contents. Hydrogen embrittlement susceptibility analysis was held using J integral and J-R curve results from CT specimens (compac
Materials Research. Publicado em: 2002-06