Zobrazeno 1 - 10
of 47
pro vyhledávání: '"C.D. Cann"'
Publikováno v:
Journal of Alloys and Compounds. 231:488-493
Specimens of Excel alloy were charged to different hydrogen concentration levels from the gas phase. Two different techniques were used to determine the hydride dissolution and precipitation/nucleation temperatures on heatup and cooldown of the speci
The effect of decomposition of beta-phase Zr-20 at% Nb on hydrogen partitioning with alpha-zirconium
Publikováno v:
Journal of Nuclear Materials. 210:6-10
The partitioning of hydrogen between the alloy, Zr-20 at% Nb, and α-Zr has been determined as a function of temperature and of the β-phase lattice parameter for different decompositions of the alloy to a Nb enriched β-phase and the ω-phase. The r
Publikováno v:
Journal of Nuclear Materials. 205:267-272
A 3.6 MeV proton irradiation of annealed Zr-2.5Nb has been performed to determine whether proton irradiation will enhance the precipitation of Nb-rich β-phase precipitates within the α-grains. A transmission electron microscope examination of a foi
Publikováno v:
Scripta Metallurgica et Materialia. 25:1155-1160
For the authors' examination, an alloy of composition Zr-2.5 at .% Nb-1.7 at .% Y was prepared and tested for mechanical properties and DHC behaviour. The effect of the yttrium addition on the DHC behaviour has been reported previously. The addition
Publikováno v:
Journal of the Less Common Metals. :1297-1305
Yttrium is being investigated as a hydrogen getter to prevent delayed hydride cracking in Zr-2.5Nb pressure tubes in CANDU nuclear power reactors. Yttrium strips have been encapsulated in zirconium alloy and attached to the ends of hydrided pressure
Publikováno v:
Journal of Nuclear Materials. 105:326-330
Autor:
L.A. Simpson, C.D. Cann
Publikováno v:
Journal of Nuclear Materials. 126:70-73
Publikováno v:
Journal of Nuclear Materials. 149:200-211
The crystal defects generated in 64% c.w. titanium by neutron irradiation have been investigated in detail. Cavities were found in 20% of the crystal grains. These were faceted on 1011 and (0001) planes and generally occurred in layers parallel with
Autor:
E.E. Sexton, C.D. Cann
Publikováno v:
Acta Metallurgica. 28:1215-1221
Thin foil specimens of hydrogenated zirconium, Zircaloy-2, and Zr-2.5 wt.% Nb have been observed in a straining stage in a transmission electron microscope. Hydrides were observed to precipitate and grow at the tips of small cracks present in the spe
Publikováno v:
Journal of Nuclear Materials. 126:197-205
The effects of grain size, solution heat-treating temperature, specimen purity, and hydrogenation technique on the formation of gamma-phase and delta-phase hydrides in zirconium have been investigated. Only specimen purity, in particular oxygen conte